Cap & Valve Kits. Heavy Duty A/C Parts. We are required to collect 8.25%. 06-07 MAZDASPEED 6 TURBO , 07-08 MAZDASPEED 3 TURBO. The refrigerant Compressor is the heart of the A/C System. Its purpose is to compress low temperature refrigerant gas and pump high temperature refrigerant gas through the…