apollas wrote:the i/h/e combo will do very minimum. reason why they are so common is because they are like the easiest mods to put on a car. also, people like the sound of the CAI and exhaust. youll get like 2-3hp, maybe.
2-3 hp maybe? I beg to differ. I've seen i/h/e combo dynos and they aren't just 2-3 hp gains. Around 15 hp sounds more reasonable.
Regardless though, I agree that i/h/e combo will do minimum. Nevertheless, if your exhaust is rusted, it doesn't hurt to take the extra mile to run a performance exhaust system.