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Porsche 997 GT2 RS with GMG WC-GT exhaust system

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Published on Jun 6, 2011

Porsche 997 GT2RS exhaust sound with GMG World Challenge GT exhaust system. This system makes 30+ hp and 60lbft of torque on a completely stock car with 91 octane fuel. Higher performance can be expected with a tune and higher octane fuel. No drone in cabin , No CEL lights, the systems are hand built to order at GMG.

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