Hey guys whats up. Well i have a 2000 audi s4 quattro bi-turbo. I want to upgrade it. i wanna get some intercoolers, airfilters, a new suspension, exhaust system, and i wanna chip it. i wanna try and get it up to 400hp. so any help would be awesome. give sites if you could, or names of companys or anything. thanks guys. Andy
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