Manufactured from high-temperature steel core/graphite faced exhaust material. Expanded steel core provides stability and maximum torque retention to eliminate gasket failure. Graphite facing provides excellent heat resistance and thermal conductivity to transfer heat away from the cylinder head. Conforms to and seals minor surface irregularities. High recovery material allows header or manifold flange to stay sealed if flange loses clamp-load. Can be trimmed if necessary for modified port applications. For original equipment replacement, high performance street, drag race and oval track use.

Manufacturer-listed applications

Match the engine, body, trim and installation requirements. All qualifications shown for an application apply together. Where this part requires a modified or aftermarket assembly, the vehicle listing alone does not confirm compatibility with factory equipment.

Vehicle	Configuration and qualifications
2004–2005 Cadillac CTS	Engine: 5.7L V8 Quantity: 1 Submodel: V Engine displacement (cu in): 346 Application notes: ULTRA SEAL; EXHAUST GASKET SET; ROUND PORT; 1.75 IN. PORT DIA.;
1998–2002 Chevrolet Camaro	Engine: 5.7L V8 Quantity: 1 Submodel: Z28 Engine displacement (cu in): 350 Application notes: ULTRA SEAL; EXHAUST GASKET SET; ROUND PORT; 1.75 IN. PORT DIA.;
1998–2002 Chevrolet Camaro	Engine: 5.7L V8 Quantity: 1 Submodel: Z28 SS Engine displacement (cu in): 350 Application notes: ULTRA SEAL; EXHAUST GASKET SET; ROUND PORT; 1.75 IN. PORT DIA.;
1997–2004 Chevrolet Corvette	Engine: 5.7L V8 Quantity: 1 Submodel: Base Engine displacement (cu in): 350 Application notes: ULTRA SEAL; EXHAUST GASKET SET; ROUND PORT; 1.75 IN. PORT DIA.;
1998 Chevrolet Corvette	Engine: 5.7L V8 Quantity: 1 Submodel: Indianapolis 500 Pace Car Engine displacement (cu in): 350 Application notes: ULTRA SEAL; EXHAUST GASKET SET; ROUND PORT; 1.75 IN. PORT DIA.;
2001–2004 Chevrolet Corvette	Engine: 5.7L V8 Quantity: 1 Submodel: Z06 Engine displacement (cu in): 350 Application notes: ULTRA SEAL; EXHAUST GASKET SET; ROUND PORT; 1.75 IN. PORT DIA.;
2003 Chevrolet Corvette	Engine: 5.7L V8 Quantity: 1 Submodel: 50th Anniversary Edition Pace Car Engine displacement (cu in): 350 Application notes: ULTRA SEAL; EXHAUST GASKET SET; ROUND PORT; 1.75 IN. PORT DIA.;
2003 Chevrolet Corvette	Engine: 5.7L V8 Quantity: 1 Submodel: 50th Anniversary Edition Engine displacement (cu in): 350 Application notes: ULTRA SEAL; EXHAUST GASKET SET; ROUND PORT; 1.75 IN. PORT DIA.;
2004 Pontiac GTO	Engine: 5.7L V8 Quantity: 1 Submodel: Base Engine displacement (cu in): 350 Application notes: ULTRA SEAL; EXHAUST GASKET SET; ROUND PORT; 1.75 IN. PORT DIA.;
1998–2002 Pontiac Firebird	Engine: 5.7L V8 Quantity: 1 Submodel: Trans Am Engine displacement (cu in): 350 Application notes: ULTRA SEAL; EXHAUST GASKET SET; ROUND PORT; 1.75 IN. PORT DIA.;
1998–2002 Pontiac Firebird	Engine: 5.7L V8 Quantity: 1 Submodel: Formula Engine displacement (cu in): 350 Application notes: ULTRA SEAL; EXHAUST GASKET SET; ROUND PORT; 1.75 IN. PORT DIA.;