Hi people, I just got my 99 teg recently and now Im considering adding some parts to it, more specifically intake, headers, changing the exhaust. My buddy though says changing the exhaust is a big waste of money because you don't get much HP increase for the money you spend on it. Whats your take on this? I also talked to a mechanic about swapping in a GSR engine, but he told me its kind of risky and Im better off modding the current engine. However, my friend, who by the way is not a mechanic thinks that swapping engines are safe and that the mechanic didn't know what he was talking about. Im just worried that if I change engines 3 months down the road its gonna break down on me and then im screwed....need opinions on this one.