ARP Billet 4.560" Bore Tapered Piston Ring Compressor (900-5600) CHEROKEE Part Number: AF556-16-12

Part Number: AF556-16-12

AF8005-3156 / AF8005-3156BLK

2012 BMW M5 4

they will support over 400 hp

Part Number: AU4418

ARP Billet 4.560" Bore Tapered Piston Ring Compressor (900-5600) CHEROKEE Part Number: AF556-16-12ARP Billet 4. 560" Bore Tapered Piston Ring Compressor (900 5600) ARP Tapered Ring Compressors 900 5600 ARP tapered piston ring compressors are CNC machined from 6061 T6 billet aluminum tube material and feature a true radius for each individual bore diameter. They're also relieved to accommodate wire O rings on the bottom. Type 3 anodizing is used for long life, and each bore size is prominently engraved in 3 4 in. high numbers for easy