Tubular Exhaust System (TESŪ) headers give you all this performance within acceptable emissions levels and without voiding the new vehicle warranties. TESŪ headers accept all stock emissions equipment, leaving them fully operational and most systems are complete from the heads to the catalytic converter. The outstanding features built into every Edelbrock exhaust delivers the best in quality and performance. These Edelbrock headers have a glossy, nickel/chrome-plated finish for great looks with outstanding performance features such as mandrel-bent tubes and laser-cut or stamped flanges.