The standard compressor option that's included with Bag Riders full kits and management packs now comes in a black finish! If you want even quicker fill times or you're building a symmetrical management layout, this dual pack is for you. Although the 400Cs are louder than other compressors like the 380C and the 444C, they're quicker and put out a combined 4.55 CFM at 0 PSI with a 33% duty cycle at 100 PSI. When it comes to 150 PSI applications, the Viair 400Cs are the best bang for your buck.