This multi-layer steel (MLS) header gasket is engineered for GM Gen III and Gen IV LS engines. It forms a durable, exhaust-tight seal between aftermarket or factory headers/exhaust manifolds and the cylinder heads, helping prevent exhaust leaks, header warping, and flange damage. The gasket is designed to handle high exhaust temperatures and pressures, making it suitable for stock, performance, or modified exhaust systems.

Brian Tooley Racing BTR17944 Features:

• Fitment: GM Gen III and Gen IV LS engines
• MLS (multi-layer steel) design for reliable, long-lasting exhaust sealing
• Direct-fit flange match for standard and aftermarket LS exhaust manifolds/headers
• Enhanced resistance to exhaust heat, pressure, and flange distortion compared to traditional gaskets
• Sold Individually

Brian Tooley Racing BTR17944 Notes:

• Sold as a set — ensure all header ports are covered when installing or replacing headers/manifolds
• Recommended to replace gaskets whenever exhaust headers or manifolds are removed or reinstalled to ensure proper sealing and avoid leaks