Thrush Dual Kit - 2.5 in. Aluminized Pipes RG20003XS Since their introduction

Since their introduction

700" maximum liftThe COMP Cams philosophy has never changed: make the highest performing products possible and lead the industry in technological development

Premium ceramic friction materials provide moderate wear rates and high heat tolerance

Direct bolt-on to Holley cast aluminum LS valve covers with 72mm bolt spacing

Thrush Dual Kit - 2.5 in. Aluminized Pipes RG20003XS Since their introductionThrush Dual Kit 89023 2. 5 in. Aluminized Pipes H Pipe Balance Tubes Thrush Turbo Mufflers Used w (85001 86001 85110 86110 85029 86029) Perfect Match For Blackjack And Cyclone Headers History Horsepower And An Unbeatable Value Complete Header Back Exhaust System ENGINEERED TO LAST Features 2. 5 in. aluminized smooth bend pipes STRONG AND DURABLE Muffler has a 100% aluminized coated shell and spun lock heads for long life EASY TO INSTALL Bolt on