audi s4
audi s4
i have an 2014 audi s4 b8.5 i want to tune it and i read online the apr supercharge pulley upgrade adds over a 100 hp is this true ? and that i should by a supercharger cooling system but i don’t want to spend a 1,000 dollars on it
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SuperleggeraGT3
BMW //M
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Oct 15, 2010 01:36 PM



