yeah they will (until turbooooooo), but I did notice a good performance increase from my chip, mainly better shift points and better shifts. The small power it adds from advancing the timing (why you use premium gas with a chip) isn't really noticeable. Also my speed limiter is removed, but I only know this from when I had my stock wheels on... weight/different size from 17"s will stop you from knowing your true top speed.
