Volkswagen Golf Sportwagen Mk7 FWD
2015-2019
Here you'll find a full range of air suspension parts that are specifically designed to fit your Volkswagen Golf Sportwagen Mk7 (2015-2019). From all-in-one complete air ride kits that have everything you need to bag your Volkswagen Golf Sportwagen, to individual parts and pieces like control arms and camber plates. Bag Riders has it all. We even carry multiple lines of coilovers and coilover conversion bags if you're looking to bag your Volkswagen Golf Sportwagen Mk7 (2015-2019) on a budget.
- Air Ride Kits
The Bag Riders Manual Air Management is one of the most reliable air management options for your car due to its simple design and lack of electrical or digital components. The heart and namesake of the system are the Manual Paddle Valves which function as both the controller and valve block (manifold). Each paddle provides two-way control of a single air spring: press up on the paddle to inflate and press down to deflate, simple as that! The Manual Air Management is the perfect solution for any budget air ride build, or for the newcomer who doesn’t want to break the bank on their first setup.
Bag Riders Manual Management Includes:- (4) Manual Paddle Valves with Mounting Plate
- Aluminum Air Tank of your choice
- FREE Tank Fitting Pack (only compatible with tank options in the full kit drop down menu)
- Compressor(s) of your choice
- 40A Relay(s) for your compressor(s)
- Relay Wiring Kit(s)
- Inflation Valve
- 110-145 PSI Pressure Switch
- Tank Drain Kit
- Air Line Cutter Tool
- (1) 60ft Bundle of DOT Approved 1/4' Air Line
- (2) PTC Union Y Fittings
- 100% Free Technical Support - The Industry's Best!
FeelAir's BP4 Air Management is a pressure based control system that features 3 user-programmable presets and a dedicated all-down button. The use of the up and down buttons, paired with the front and rear buttons on the controller, allows the system both individual, 4-corner control as well as paired front and rear control. The wired controller is slimmer than competitive offerings and offers a backlit screen which displays four bag pressures as well as tank pressure and is also capable of smartphone control via bluetooth.
Features:
- (3) User-definable pressure presets
- Dedicated All-Down button
- Rise-on-start and air out-on-shutdown functionality
- Manual mode for individual and paired air spring control
- Super thin, digital controller with backlit screen
- Mobile app (no additional hardware required)
- Combined ECU and manifold
- 1 year limited warranty
- FeelAir BP4 System
- Combined ECU/Manifold Unit
- ECU/Manifold Mounting Hardware
- FeelAir BP4 Controller and Harness
- FeelAir Vent Mount Controller Holder
- Pre-assembled ECU/Manifold Wiring Harness
- Compressor wiring harness with pre-wired relay
- In-line Fuse Holders (with fuses)
- Wiring Terminals for hassle-free Installation
- Manifold fitting pack
- Aluminum Air Tank of your choice
- Air Tank Fitting Pack (only compatible with tank options in the full kit drop down menu)
- Compressor(s) of your choice
- Air Tank Drain Kit
- Air Line Cutter Tool
- (1) 60ft Bundle of DOT Approved Air Line
- 100% Free Technical Support - The Industry's Best!
- Single Compressor kits do not require a power kit; it is included with the FeelAir BP4 System
- FeelAir BP4 Second Compressor Harness
The e+ Connect Air Management Package is AccuAir's entry level management system that starts out as a simple smartphone based wireless switch box that can be upgraded over time to a full fledged e-Level system. By adding the e-Level+ Height Sensor Upgrade and even a physical e-Level+ TouchPad Controller, you can build your way up to one of the most premiere managements on the market.
If you're looking for the maxed out version of this system with all of the features, be sure to check out the AccuAir e-Level+ Air Management Package.
- Control your air suspension with your smartphone using the e-Level Plus app
- Air tank pressure readout on the e-level Plus app
- RGB backlighting that allows you to change the color of your ECU
- Included wiring harness for direct plug-n-play with the ENDO-CT and ENDO-CVT air tank systems
- Battery saver mode that puts the system to sleep after 24 hours
- Bluetooth 5.0
- Over the air updates
Includes:- AccuAir e+ Connect ECU
- Wiring harness
- Digital Pressure Sensor
- e-Level Plus smartphone app
- Aluminum air tank of your choice
- Compressor(s) of your choice
- 40amp Relay(s) for your compressor(s)
- Relay wiring kit(s)
- Inflation Valve
- Air Tank Drain Kit
- Air Line Cutter Tool
- (1) 60ft Bundle of DOT Approved Air Line**
- 100% FREE technical support - the industry's best! **By choosing 1/4" air line you will receive (6) Plug-In Reducers
The 3P from Air Lift Performance is a pressure based management that features 5 user-programmable pressure presets and individual, four corner, air spring control. The 3P’s wired digital controller displays all four bag pressures as well as the tank pressure. The controller uses a full color, backlit screen and features a rotatable keypad that allows for horizontal controller mounting.
Air Lift’s mobile app allows the vehicle to be put into a ‘show mode’ which enables you to remotely control the air suspension using your Bluetooth enabled smart phone (iPhone/Android) from a distance once the vehicle has been turned off. No additional hardware is required to use this feature, it is built into every 3P and 3H system! Future system updates can be applied through the app as well.
If you're looking for a system that takes both pressure and height into consideration, you should look into purchasing the Air Lift Performance 3H Air Management Package. If you'd rather get the 3P to start, you can always upgrade to the 3H at a later date by purchasing Air Lift's 3P to 3H Upgrade Kit.
Features:
- (5) User-definable pressure presets (can be upgraded to height)
- Manual mode for individual air spring control
- Digital controller with color screen
- Rotatable keypad that allows for horizontal mounting
- Mobile app (no additional hardware required)
- System updates through mobile app
- Combined ECU and manifold
- Rise on start
- 2 year limited warranty, extendable up to 4 with the purchase of Air Lift brand suspension; details here
Air Lift Performance 3P Management Includes:- Air Lift Performance 3P System
- Combined ECU/Manifold Unit
- ECU/Manifold Mounting Hardware
- Air Lift Performance 3P/3P Controller and Harness
- Pre-assembled ECU/Manifold Wiring Harness with built-in Compressor Relay
- SMC water trap
- In-line Fuse Holders (with fuses)
- Wiring Terminals for hassle-free Installation
- Aluminum Air Tank of your choice
- Free Air Tank Fitting Pack (only compatible with tank options in the full kit drop down menu)
- Compressor(s) of your choice
- 40amp Relay(s) for your compressor(s)**
- Relay Wiring Kit(s)**
- Air Tank Drain Kit
- Air Line Cutter Tool
- (1) 60ft Bundle of DOT Approved Air Line
- 100% Free Technical Support - The Industry's Best! ** Single Compressor kits will not include an additional relay, as a relay is built into the Air Lift Performance 3P Wiring Harness
The 3H from Air Lift Performance is both a height and pressure based management that features 5 preset heights and individual four corner air spring control. The height based sensors give the system the ability to automatically and accurately re-level when loads change (e.g., adding a passenger or traveling with luggage).
Installing height sensors is often a daunting task for the weekend mechanic, but worry not because Air Lift has designed the 3H so that it can operate in "pressure-only mode" in the event that you don't have time to get the sensors installed right away.. Or you just can't wait to test out your new suspension!
The 3H’s wired digital controller displays all four bag pressures as well as the tank pressure. The controller uses a full color, backlit screen and features a rotatable keypad which allows for either vertical or horizontal controller mounting.
Air Lift’s mobile app allows the vehicle to be put into a ‘show mode’ which enables you to remotely control the air suspension using your Bluetooth enabled smart phone (iPhone/Android) from a distance once the vehicle has been turned off. No additional hardware is required to use this feature, it is built into every 3P and 3H system! Future system updates can be applied through the app as well.
Air Lift’s digital management system utilizes a combined ECU and manifold which greatly simplifies the installation process. The included plug-n-play wiring harness will power a single compressor and if you’re planning on running dual compressors, you'll need to pick up the Air Lift 3H / 3P Second Compressor Harness.
Features:
- (5) height and pressure presets
- Automatic leveling (with height sensors installed)
- Manual mode for individual air spring control
- Digital controller with color screen
- Rotatable keypad that allows for horizontal mounting
- Mobile app (no additional hardware required)
- System updates through mobile app
- Combined ECU and manifold
- Rise on start
- 2 year limited warranty, extendable up to 4 with the purchase of Air Lift brand suspension; details here
Air Lift Performance 3H Management Includes:- Air Lift Performance 3H System
- Combined ECU/Manifold Unit
- (4) Air Lift Performance Height Sensors and Mounting Hardware
- ECU/Manifold Mounting Hardware
- Air Lift Performance 3H/3P Controller and Harness
- Pre-assembled ECU/Manifold Wiring Harness with built-in Compressor Relay
- SMC water trap
- In-line Fuse Holders (with fuses)
- Wiring Terminals for hassle-free Installation
- Aluminum Air Tank of your choice
- Free Air Tank Fitting Pack (only compatible with tank options in the full kit drop down menu)
- Compressor(s) of your choice
- 40amp Relay(s) for your compressor(s)**
- Relay Wiring Kit(s)**
- Air Tank Drain Kit
- Air Line Cutter Tool
- (1) 60ft Bundle of DOT Approved Air Line
- 100% Free Technical Support - The Industry's Best! ** Single Compressor kits will not include an additional relay, as a relay is built into the Air Lift Performance 3H Wiring Harness
The e-Level+ from AccuAir is a height based management that features 3 programmable height presets with the added ability of individual, four corner, air spring control. AccuAir's eLevel+ system allows you to control your vehicle's suspension with a physical controller or through your smartphone with the e-Level Plus app. Direct plug-n-play with the ENDO-CT and ENDO-CVT air tank systems allow for one of the cleanest management setups on the market.
If you're looking for a more simple approach without all of the bells and whistles, be sure to check out the AccuAir e+ Connect Air Management Package.
- 3 programmable heights
- Visual display of each sensor's height percentage
- Automatic calibration
- Air tank pressure readout on the e-Level Plus smartphone app
- RGB backlighting that allows you to change the color of your ECU
- Included wiring harness for direct plug-n-play with the ENDO-CT and ENDO-CVT air tank systems
- Bluetooth 5.0
- Control your air suspension with your smartphone using the e-Level Plus app
- Compressor status indicator light
- Over the air updates
- Battery saver mode that sleeps the system after 24 hours
AccuAir e-Level+ Air Management Package Includes:- AccuAir e-Level+ System
- e-Level+ ECU
- (4) height sensors
- e-Level+ TouchPad controller (optional)
- ECU main harness
- ECU valve harness
- e-Level+ height sensor harness
- Digital pressure sensor
- Aluminum air tank of your choice
- Compressor(s) of your choice
- 40amp Relay(s) for your compressor(s)
- Relay wiring kit(s)
- Inflation Valve
- Air Tank Drain Kit
- Air Line Cutter Tool
- (1) 60ft Bundle of DOT Approved Air Line**
- 100% FREE technical support - the industry's best! **By choosing 1/4" air line you will receive (6) Plug-In Reducers
- Air Suspension
Looking to switch over from coilovers to air suspension, but don't want to purchase a completely new suspension system? With the Maxload Rear Air Suspension kit, you can swap the standalone coil springs from rear of your car for these vehicle specific mounting brackets and air springs. These double bellow bags will allow you to slam your vehicle when parked, and you can combine this rear kit with conversion bags for your front struts to complete the package while keeping your current coilovers. Kit Includes: (2) MAXLOAD double bellow bags with integrated mounting brackets (2) 1/4” compression fittings Anodized end caps All required hardware for installation Free technical supportBR18548 MAXLOAD USD 500.00 https://schema.org/NewCondition https://schema.org/InStock https://www.bagriders.com/vw-golf-gti-jetta-mk7-maxload-rear-kit.html
Increase handling and lower the rear of your car with the Air Lift Performance Rear Kit. These 1/4” ported, double bellow rear bags provide a stable and comfortable, yet sporty ride. Purchase some fully threaded Air Lift Performance rear shocks to dial in your setup even further (sold separately).
Kit Includes:- (2) Air Lift double bellow bags with integrated mounting brackets
- (2) 1/4” DOT approved fittings
- Anodized end caps with corrosion resistant paint on the struts
- All required hardware for installation
- Detailed instruction manual with pictures
- 1 year warranty from Air Lift
- Free technical support
Bag Riders Super Low Rear Air SuspensionBag Riders Super Low Rear Air Suspension https://www.bagriders.com/media/catalog/product/cache/6cc469ce9f0c45ca88dc49d6594bbebe/v/w/vw-gti-mk7-mk8-super-low-air-suspension-rear_1.jpg$1,095.00<p>Super Low is manufactured by Bag Riders with one goal in mind, <strong>Drive Lower</strong>. Every kit undergoes extensive development and testing at our Vermont headquarters to ensure that Super Low can provide a more aggressive ride height and sportier feel than traditional air suspension. All kits include the standard features you've come to expect, including threaded shock bodies, 32-way adjustable damping, and either single bellow or sleeve air springs that deliver up to 50% higher spring rates at lower heights when compared to competitive offerings. Aiming to raise the bar for modern air suspension, Super Low also utilizes aluminum bag end caps and brackets designed in-house, air springs made in the USA with 75% thicker rubber than typical bags, radial bearings on MacPherson struts to improve service life, and camber plates with more negative adjustment when applicable. All kits are backed by a lifetime warranty to the original purchaser so you can be confident in the longevity of your suspension.</p> <p>Super Low by Bag Riders: Built to Drive Low</p> <strong>Kit Includes:</strong> <ul> <li>(2) Super Low rear shocks</li> <li>(2) 1/4" port single bellow air springs, preassembled with mounting brackets</li> <li>1/4” & 3/8" PTC DOT approved fittings</li> <li>All required hardware for installation</li> <li>QR code with installation tips and tricks</li> <li>Limited lifetime warranty</li> <li>100% free technical support, from the industry's best</li> </ul>BR17634 Bag Riders USD 1095.00 https://schema.org/NewCondition https://schema.org/InStock https://www.bagriders.com/vw-gti-golf-r-mk7-mk8-super-low-rear-suspension.html
Increase handling and lower the rear of your car with the Air Lift Performance Rear Kit. These 1/4” ported, double bellow rear bags provide a stable and comfortable, yet sporty ride.
Kit Includes:- (2) Air Lift double bellow bags with integrated mounting brackets
- (2) Air Lift Performance shocks
- (2) 1/4” DOT approved fittings
- Anodized end caps with corrosion resistant paint on the struts
- All required hardware for installation
- Detailed instruction manual with pictures
- 1 year warranty from Air Lift
- Free technical support
Maxload Air SuspensionMaxload Air Suspension https://www.bagriders.com/media/catalog/product/cache/6cc469ce9f0c45ca88dc49d6594bbebe/m/a/maxload-front-and-rear-product-not-displayed_1_1_1_1_1_1_1_1_1_1_1_1_1_1_1.jpg$1,560.00<p>Looking for some quality air suspension without paying a premium? Well, Maxload has you covered with an affordable cost of entry and premium features like 32-way adjustable damping and fully adjustable, threaded shock bodies, Maxload ensures that you aren't missing out on the enjoyment of air ride.</p> <strong>Kit Includes:</strong> <ul> <li>Maxload front air suspension</li> <li>Maxload rear air suspension</li> <li>(4) 1/4” tube - 1/8” NPT compression elbows</li> <li>(4) Damping adjustment knobs</li> <li>Spanner wrench</li> <li>Up to (4) leader lines, when applicable</li> </ul>BR17956 MAXLOAD USD 1560.00 https://schema.org/NewCondition https://schema.org/InStock https://www.bagriders.com/vw-mk7-s-audi-a3-quattro-maxload-air-suspension.html
- Coilovers
These Extreme Low coilovers from BC Racing are a shorter version of BC's BR Type coils and can also be used in conjunction with VERA double bellow and sleeve style bags. Simply remove the spring from the coilover body and thread on a set of VERA bags. Thinking about selling your car and transferring your air setup to the next one? Throw the springs back on the coilovers and move the VERA bags over to your next car!
BC Racing BR Type Coilover Kit (Extreme Low)- Mono-tube shock design
- Linear piston and damping curve
- Height adjustment via shock body
- 30 way damping adjustment
- Custom spring rates and valving available (call to order)
- 1 year warranty against manufacturer defects
VERA bags BR05366 BC Racing USD 1195.00 https://schema.org/NewCondition https://schema.org/InStock https://www.bagriders.com/vw-golf-sportwagen-mk7-bc-racing-br-type-coilover-kit-extreme-low.html
BC Racing BR Type Coilover KitBC Racing BR Type Coilover Kit https://www.bagriders.com/media/catalog/product/cache/6cc469ce9f0c45ca88dc49d6594bbebe/b/c/bc_racing_coilovers_03_53_1_1_1_1.jpg$1,195.00These BR Type coilovers from BC Racing can also be used in conjunction with VERA double bellow and sleeve style bags. Simply remove the spring from the coilover body and thread on a set of VERA bags. Thinking about selling your car and transferring your air setup to the next one? Throw the springs back on the coilovers and move the VERA bags over to your next car!
BC Racing BR Type Coilover Kit- Mono-tube shock design
- Linear piston and damping curve
- Height adjustment via shock body
- 30 way damping adjustment
- Custom spring rates and valving available (call to order)
- 1 year warranty against manufacturer defects
VERA bags BR05286 BC Racing USD 1195.00 https://schema.org/NewCondition https://schema.org/InStock https://www.bagriders.com/vw-golf-sportwagen-mk7-bc-racing-br-type-coilover-kit.html
KW Suspensions V1 Coilover KitKW Suspensions V1 Coilover Kit https://www.bagriders.com/media/catalog/product/cache/6cc469ce9f0c45ca88dc49d6594bbebe/k/w/kw-variant-1-v1.jpg$1,654.00The KW Variant 1 "Inox-line" coilover kit is KW's entry point into their street performance lineup. Thanks to the high-quality "Inox-line" stainless steel coilover struts, corrosion resistant springs, bumps stops and dampers that are optimally tuned by KW engineers. The result is a balanced and sporty feel specific to each vehicle application designed for long lasting driving pleasure.
Features- Twin Tube Damper Design
- Corrosion Resistant INOX-LINE Stainless Steel
- Trapezoidal Threaded Bodies
- Composite Spring Seat
- KW 7-post Driving Dynamics Test
- Lowering Springs
Want to lower your car, but on a budget? 034Motorsport's lowering springs will be the easiest way to get that lower ride height without breaking the bank. These lowering springs are a direct replacement for your factory springs and are designed to work with your factory dampers.BR14541-1 034Motorsport USD 338.00 https://schema.org/NewCondition https://schema.org/InStock https://www.bagriders.com/vw-mk7-golf-034motorsport-lowering-springs.html
- Shocks
<p>Koni is the industry leader of adjustable damping shocks for both daily drivers and weekend warriors alike. The adjustable damping feature allows these shocks to pair well with stiffer lowering springs or air springs and gives you the ability to dial in your comfort level.</p> <p>Need instructions for adjusting your Koni Sport Shocks? Look no further! We’ve got you covered in our <a href="{{store direct_url="air-ride-faq/#how-to-adjust-koni-sport-damping"}}" target="_blank">Air Ride F.A.Q.</a></p>BR05802 Koni USD 355.00 https://schema.org/NewCondition https://schema.org/InStock https://www.bagriders.com/vw-golf-gti-jetta-alltrack-sportwagen-audi-tt-a3-s3-mk7-koni-sport-rear-shocks.html
Air Lift Performance Rear ShocksAir Lift Performance Rear Shocks https://www.bagriders.com/media/catalog/product/cache/6cc469ce9f0c45ca88dc49d6594bbebe/v/w/vw_mk7_gti_jetta_air_lift_performance_shocks_1_2.jpg The Performance Series rear shocks from Air Lift are designed to provide outstanding performance with height adjustability in mind. These shocks are 30-way damping adjustable and feature threaded bodies, which allows you to dial in the overall compressed height of the rear of your vehicle. If you’re running an aggressive wheel fitment where the wheel or tire could come in contact with your vehicle’s body panels, adjusting the threaded bottom bracket will allow your car to air out at the perfect height every time. Due to the adjustable length of these shocks, you won’t need to worry about sourcing / making the perfect sized bump stops which in turn allows for a quicker and easier install. BR02611 Air Lift Performance USD 550.00 https://schema.org/NewCondition https://schema.org/InStock https://www.bagriders.com/vw-golf-gti-jetta-alltrack-sportwagen-audi-tt-a3-s3-mk7-air-lift-performance-rear-shocks.html$550.00
- Control Arms
Features:- CNC machined billet 6061 construction, black anodized finish
- 034Motorsport density inner bushings
- Built in safety washer to eliminate any chance of the spherical ever separating
- No tightening creep like you get with a turn buckle
- Adjustments can be easily made by threading out an M6 head allen bolt, the pinch pin stays installed in the upright. A jam nut keeps everything tight once adjusted
034Motorsport's rear adjustable upper control arms for the VW MK5 / MK6 / MK7 platform are manufactured from billet aluminum and feature genuine Aurora spherical bearings. These are a direct replacement for the stock stamped steel and rubber arms, and allow for over 4 degrees of camber adjustment on top of what the stock eccentric bolts allow.BR13067 034Motorsport USD 395.00 https://schema.org/NewCondition https://schema.org/InStock https://www.bagriders.com/034motorsport-vw-mk5-mk6-mk7-rear-adjustable-upper-control-arms.html
- Air Suspension Parts
These fixed end links from Air Lift are designed to prevent sway bar binding on your lowered Volkswagen. These fixed end links are to be used with Air Lift Performance Series front kits.
BR07179 Air Lift Performance USD 90.00 https://schema.org/NewCondition https://schema.org/InStock https://www.bagriders.com/air-lift-performance-fixed-front-end-links-6.html
Bag Riders Adjustable End LinksBag Riders Adjustable End Links https://www.bagriders.com/media/catalog/product/cache/6cc469ce9f0c45ca88dc49d6594bbebe/s/u/super-low-end-links-black_4.jpg$125.00Bagged cars are sick, but you know what's not? Binding sway bars. With these high quality adjustable end links, you will be able to eliminate any binding issues your sway bar has on your lowered vehicle.BR26510 Bag Riders USD 125.00 https://schema.org/NewCondition https://schema.org/InStock https://www.bagriders.com/vw-b8-mk7-s-twistbeam-mk8-mqb-bag-riders-super-low-adjustable-end-links.html
These adjustable end links from 034Motorsport are perfect for those who have lowered their car on an air suspension setup and are looking to prevent sway bar binding. <br><br> <strong>Features:</strong> <ul> <li>CNC machined billet 6061 construction</li> <li>Aurora spherical bearings, featuring Teflon race lining</li> <li>Built in safety washer to eliminate any chance of the spherical ever separating</li> <li>No tightening creep like you get with a turn buckle</li> <li>Adjustments can be easily made by threading out an M6 head allen bolt, the pinch pin stays installed in the upright. A jam nut keeps everything tight once adjusted</li> <li>Dust boots included. The boots ship uninstalled; once you have the alignment set, install the dust boots before final installation</li> </ul>BR13280 034Motorsport USD 295.00 https://schema.org/NewCondition https://schema.org/InStock https://www.bagriders.com/vw-mk5-mk6-mk7-golf-jetta-gti-034motorsport-adjustable-front-end-links.html
KW's EDC/ESC Cancellation Kit is designed to get rid of those annoying dash lights that pop up when upgrading your stock suspension that came with electronically regulated dampers. KW's system shuts down the electronic damper module and the trouble code is avoided. This kit is a simple plug and play solution that can be used without damaging the existing OEM control unit.
{VW Mk7} KW Suspensions EDC/ESC Cancellation Kit KW Suspensions USD 433.95 https://schema.org/NewCondition https://schema.org/InStock https://www.bagriders.com/vw-mk7-golf-gti-audi-s3-tt-suspensions-edc-esc-cancellation-kit.html
Air Ride Suspension for your Volkswagen Golf Sportwagen Mk7 (2015-2019)
It's time to bag your Volkswagen Golf Sportwagen Mk7 (2015-2019). Bag Riders offers a full range of air suspension parts and pieces that are specifically designed to fit your Volkswagen Golf Sportwagen. From complete air ride kits that have everything you need from the air management to the air suspension itself, to parts like control arms and camber plates - Bag Riders has it all. We even carry multiple lines of coilovers and coilover conversion bags if you're looking to get your Volkswagen Golf Sportwagen set up with air suspension on a budget.
Air ride suspension doesn't need to be complicated and that's where Bag Riders comes in. Our huge selection of air ride products, our unbeatable customer service, and our built in house complete air ride kits and management packages mean you can get that custom air ride kit of your dreams with ease. Bag Riders is here to make sure you have the best air ride experience possible. Not sure where to start? Reach out, ask us all the questions, and let us help you get your Volkswagen Golf Sportwagen Mk7 (2015-2019) on air suspension.