in99flames

Ok, so after driving my 5.0 around for a day before I sold it, I realized tha my exhaust on my bullitt is too quiet. I was thinking of upgrading it(and keeping the stock exhaust kit of course!). Now the SSS exhaust system thats advertised on sale looks great, are there any recommendations on brands that have great performance and sound? Oh, and BTW, would I really get much better performance(im mainly doing it for the sound) from an upgraded exhaust when changing from the bullitt exhaust?