Well guys and gals, I'm still looking for "THE" SSR. I wanted to know if there were any horsepower mods any of you have done? I think I'm going to stick to an '04 model due to the gas mileage. I Figure the 5.3 would do better (gas mileage wise) than the 6.0 ? Anyways, where can I go to check out headers, and exaust, etc. for horsepower to keep up with a 6.0?