Fabspeed 997.2 GT3/GT3 RS Center Muffler Bypass Pipe (10-11) (FS.POR.9972GT3.CMBC) 8009 Manifold Block Measures 2in x

Manifold Block Measures 2in x 2in x 1

They offer many features that make them better than any other headers for the IS350

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Incorporates high flow catalytic converters to enhance exhaust flow and optimize performance

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Fabspeed 997.2 GT3/GT3 RS Center Muffler Bypass Pipe (10-11) (FS.POR.9972GT3.CMBC) 8009 Manifold Block Measures 2in xDirect replacement for the failure prone OEM mufflerprovidingimproved flow, weight savings, and aggressive sound. Our newtalk pipe design blends the exhaust from the right and left cylinders creating an incredible smooth blended sound, and our simplified two bolt mounting system makes installing easier than ever! FEATURES: Fits all Porsche 997. 2 GT3 GT3 RS vehicles (2010 2012) Adds 10 whp and 6 ft lbs of torque while increasing throttle response