MSD RPM Module Selector, 6.0K-8.2K 8672 1975-buick-century-esi5033106 This X-pipe is designed to

This X-pipe is designed to work with Speed Engineering longtube headers only

79% Flow Gain

1977-1979 Chevrolet K20 Cheyenne 1975

Description_DEF Distributor Vacuum Advance Lock-Out Description_ASC Distributor Vacuum Advance Lockout Description_ASC For GM HEI Dist

Up to 600 lbs

MSD RPM Module Selector, 6.0K-8.2K 8672 1975-buick-century-esi5033106 This X-pipe is designed toThe user can then select between twelve different rpm limits by simply turning the knob. Six models are available to cover a range from 3,000 rpm to 12,800 rpm in 200 rpm increments. MSD RPM Module Selector, 6. 0K 8. 2K 8672 Specifications: Brand MSD Category Air and Fuel Delivery Emission Code 5 part type Engine RPM Limiter Product Type Module Selector Sub Category Fuel Injection System and Related Components Warning California Proposition 65