ARP 3.770" Tapered Ring Compressor 01-1615 This is the current standard

This is the current standard issue quick release helmet hardware set (pair) for your NecksGen Original and NecksGen REV devices

Filter Adapter / Headers / Mounts / Oil Pan / Radiator

Drag Parachute

Tighten down your belts in comfort

It is the perfect upgrade for the enthusiast

ARP 3.770" Tapered Ring Compressor 01-1615 This is the current standardARP's ring compressors are CNC machined from 6061 T6 billet tube material and feature a true radius for each different bore diameter. What's 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 in high numbers for easy identification. Standard stocking sizes from 3. 552 in to 4. 750 in (SAE) and 75mm to 95. 5mm (metric). The true radius design is far superior to