Speed Pro - Main Bearing Set The system keeps the exhaust

The system keeps the exhaust tip tucked up higher in the rear of the vehicle for better departure angle and minimizes the chance of hanging up on the exhaust when aggressively off-roading

125 in Primary - 4 in Collector - Gaskets / Hardware Included - Steel - Black Paint - Big Block Chevy - Chevy Corvette 1963-82 - Pair

20 in OD - C4-R4 Valve - Threaded Aluminum - Blue Anodized - Each

then 4° on the second stage and another 2° at top end

The 6 BTM lets you dial away detonation by retarding the timing in relation to the boost pressure

Speed Pro - Main Bearing Set The system keeps the exhaustMain Bearing Speed Pro Standard GM V6 Kit