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316 stainless steel is our material of choice as it has a higher corrosion resistance than T304L stainless steel
and a straight-through design allowing smoother
440-401003-N
The IPD Plenum utilizes all the factory hardware including the OE 76mm throttle body
For A Full Conversion
Porsche 718 GT4 RS / Spyder RS SOUL Race Exhaust System 2009 C6 CORVETTE 316 stainless steel is ourDEVELOPMENT: The factory rear muffler wasnt much of a restriction on the standard 718 GT4, but reusing it for the GT4 RS has created a bottleneck for the GT3 derived engine. The tubing diameter remains the same, meaning that increased power is now forced through tubing that measures less than 2 inches. Repurposing that muffler helps meet sound restrictions and eases manufacturing processes, but doesnt extract the most performance out of the GT4 RS.