Features:

• For GM LS engine swaps into 1975-1987 GM C-10/20 2WD Trucks
• 1-3/4" primary tube diameter and 3" collector diameter ideal for "hot" LS1/LS6/LS2 or 5.3L-6.0L Vortec truck engine swaps
• Long tube design for optimum engine performance
• 100% stainless steel construction
• Designed for use with <a href="https://www.holley.com/12621HKR">12621HKR</a> engine mounting brackets
• Manufacturer's Limited Lifetime Warranty

About Hooker BlackHeart

Shop the official site of Hooker BlackHeart and explore exhaust systems, engine swap kits, and mufflers for both import and domestic vehicles at Holley.com!

The following vehicles are considered Racing Use Only Vehicles:

• Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street.

WARNING: It is against the law to install this part on an Emissions Controlled Vehicle