This exhaust manifolds for the 1997-2004 Porsche Boxster 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 Long Tube off-road headers 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 2.5L, 2.7L and 3.2L 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
O2 sensor bung insertion; Metal gasket included
2 x 3-1 Racing design
Increase high flow air, instantly gain 10 to 15 Hp. / Tq.
Includes:
1 x Header exhaust system
All necessary installation hardware
Notes:
100% Brand New
Professional Installation is Highly Recommended
Installation Instruction is NOT Included
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