Fabspeed Porsche 996 GT3 Sport Cat X-Pipe (1999-2005) - FS.POR.996GT3.SCX CSF Supra A90/A91 High-Performance Heat Exchanger resulting in more horsepower and

resulting in more horsepower and improved throttle response

and are not made for any specific engine cover

and top end HP that you'll feel on the track

We chose high-flow catalytic converters of an appropriate size to encourage maximum power gains

and power for your McLaren — all without check engine lights or noxious fumes

Fabspeed Porsche 996 GT3 Sport Cat X-Pipe (1999-2005) - FS.POR.996GT3.SCX CSF Supra A90/A91 High-Performance Heat Exchanger resulting in more horsepower andIncrease horsepower, torque, and sports car sound by replacing the factory catalytic converters with high flowing 200 cell HJS cats. SOUND: Replacing the factory catalytic converters with high flowing cats and our cast X Pipe will provide a mild increase in volume while also revealing a more defined exhaust note. POWER: We saw curve gains as much as 15 whp with this system thanks to much better flowing 200 cell cats and the knife edged cast X Pipe.