Performance Tune Advice
Thanks in advance guys!
Unrelated to mercedes, for my wife's Porsche Macan S, I went with a racechip piggyback and very very satisfied with it. They have a 30 day no questions asked return on their units if you want to give it a shot on your s63.
Unrelated to mercedes, for my wife's Porsche Macan S, I went with a racechip piggyback and very very satisfied with it. They have a 30 day no questions asked return on their units if you want to give it a shot on your s63.
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How many HP’s do they claim it adds? Renntech adds like 100HP, I am sure one would feel the difference with that tune. Is your tune not close to that increase?




Barry, I would interested in purchasing your used Renntech high flow catted down pipes for my AMG S63 5.5. LITRE













