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aFe Power MACHForce XP 304 stainless secondary muffler delete pipe for 2014–2019 Porsche 911 GT3 (3.8L/4.0L). The assembly uses mandrel-bent 304 stainless steel tubing and 100% TIG welds for strength and corrosion resistance, and integrates dual tuned Helmholtz resonators to refine tone and reduce drone. It’s a direct bolt-on replacement requiring no cutting, retains side mufflers and factory exhaust valves, and is CAD-designed for factory fitment.
aFe Power MACH Force XP 304 Stainless Secondary Muffler Delete Pipe 14-19 Porsche 911 GT3 3.8L/4.0L
