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 .
JBA Cat4ward Headers are the perfect upgrade for today's emissions controlled cars, trucks and SUVs. Engineered with heavy duty features and patented technology, these headers deliver serious performance gains without compromising your vehicles emissions equipment. Bolting (minor welding required when installing headers on a 4.0 liter 1GR engine) on a set of JBA Cat4ward® Headers increases your en...