FLOWTECH's emissions-friendly headers are just the ticket for those who want the best of both worlds - top performance and a clean machine. All Shorty Smog Headers bolt on quickly and easily to the factory exhaust system, retaining all stock emissions equipment, and offering maximum horsepower gains plus increased efficiency! Features: Mandrel-bent tubing for smooth exhaust flow Sturdy 16 gauge tubing Extra thick 3/8 flanges for a leak-free seal Designed as a direct fit replacement for OEM exhaust manifolds Will accommodate all emission control devices Bolts directly to factory head pipe Complete with premium gaskets and hardware