This exhaust manifolds for the 1997-2002 Audi S4 and A6 Twin Turbo were designed to combine the exhaust gasses from each of the cylinders quickly with a manifold that was cost effective to produce. Our 3-1 Turbo Manifolds are designed to allow the exhaust gasses to flow more freely from each 3 cylinder bank and combine in a more efficient manner. Tubing has been optimized for the 2.7L V6 engines. This creates a reduction in cylinder backpressure and improved exhaust gas velocity. These improvements free up lost horsepower and torque. An added benefit is a more performance oriented exhaust sound.
Made of high quality T-304 stainless steel material
TIG welded CNC machine flange
Metal gasket included
2 Piece 3-1 racng spec. design (6-2-1)
Increase high flow air, instantly gain 10 to 15 Hp. / Tq.
Includes:
1 x Set of exhaust header
All necessary hardware, bolts, and gaskets
Notes:
100% Brand New
Professional Installation is Highly Recommended
Installation Instruction is NOT Included
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