I'm going to be running autoX events (STS) and some track days next year using this winter to get my car up to snuff (95 Acura integra GSR). It is no longer my daily driver and is for the most part stock with the exception of slotted rotors, hawk brake pads braided stainless brake lines, Intake and catback exhaust. I notice that seat time is the most important aspect of honing skills and lowering times but my car is tired, 135k of hard daily driving. In the process of bringing my car back from the 11yr old hard knock life I'd like to bypass stock replacement parts when I can and use parts such as: Koni/GC suspension, urethane bushings, new axles, rebuild head, new headers, etc... My question to you guys/girls already involved in the racing community is how far can/should I go and what components are no-no's in STS. I will be replacing my clutch and wonder about lightweight flywheels. Yes i have researched threads until my eyes burn but I wanted personalized feedback from intelligent folks, thats why I'm in this forum. Thanks.