i'm fairly sure that i need an efi tuner to run any kind of slip on or intake mod, but i've been seeing a lot ppl neglecting to buy one and just using the original fuel mapping...
is that safe for my engine?:confused:
i'm a racer on a budget. i love the titanium head pipe, so i'm only looking 4 a slip on.
SUGGESTIONS PLEASE! :confused:
i want a slip on that's the cheapest, highest horsepower, still trail legal(loudness).