Porsche Cayenne Forums : Porsche Cayenne Forum - View Single Post - Any Suggestions to Increase Engine HP on GTS?
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post #3 of Old 08-28-2019, 11:22 PM
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Sebring's Avatar
Join Date: Jan 2018
Posts: 27
Tuning a high-compression GTS is simply some throttle tweaks, tuners charge big $$$ for. Want some power? Delete or gut the secondary cats and replace that heavy, restrictive suitcase muffler. I am selling upgraded 957 exhausts. PM me...
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