ARP 85.5mm Ring Compressor - arp901-8550 missing-image 6599cc Nerf Bars & Running

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ARP 85.5mm Ring Compressor - arp901-8550 missing-image 6599cc Nerf Bars & RunningARPs new ring compressors are CNC machined from 6061 T6 billet tube material and feature a true radius for each different bore diameter. Whats more, they are relieved for wire O rings on bottom. Type 3 anodizing is used for long life, and the bore size is prominently engraved in 3 4 high numbers for easy identification. Standard stocking sizes from 3. 552 to 4. 750 (SAE) and 75mm to 95. 5mm (metric). The true radius design is far superior to