Corsa Sport Cat-Back Exhaust System - 3 in Diameter - Single Side Exit - Dual 4 in Black Tips - GM LS-Series - GM Fullsize SUV 2015-19 HANGER-HELMET-2.0 570'' exhaust valves these heads

570'' exhaust valves these heads move massive amounts of air

Pinion Yoke

Compatible with 8/6/4 cylinder engines

1985-1991 GMC K1500

180 GPHSince 1938

Corsa Sport Cat-Back Exhaust System - 3 in Diameter - Single Side Exit - Dual 4 in Black Tips - GM LS-Series - GM Fullsize SUV 2015-19 HANGER-HELMET-2.0 570'' exhaust valves these headsCustom Tuned Aggressive Exhaust Note No Drone At Cruise 304 Stainless Steel Construction Dual Walled Polished Stainless Steel Tips Flows 669. 58 Percent Better Than Stock Valve Closed Lighter Than Stock Easy Bolt On Installation Detailed Printed Instructions Includes Full Color Available Online No Welding Required Limited Lifetime Warranty Made in the U. S. A. Vehicle Applications: 15 16 YukonXL Denali 6. 2Vehicle Applications: 15 16 YukonXL Denali 6.