I have a 2000 GLS 3.4L with 47000 miles, it's completely stock exempt for the K&N air filter and the rear 6x9's. I want to start upgrading it but I want to know what should be the first thing to buy. Whats the best bang for the buck? Is there a huge difference between a WAI and a CAI? How painfull is it to get to the filter for the CAI? Should I get headers before a cat-back system? Will the Borla Cat-back make my car sound like a damn Honda? It's going to be paid off soon and I'll finally have some money to spend on it!
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