Underdrive kit
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Honestly, not much. By a seat of the pants (butt dyno) feel you'll barely notice a difference. I have them and think that whatever I noticed was mostly my imagination. I would skip them and spend the money elsewhere, like maybe an off road midpipe. Even a CAI is money better spent in this situation imo.
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3,705 Posts
Whichever one you think looks coolest.
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2,146 Posts
i wouldnt do bigger than 75mm throttlebody and plenum since its n/a. you will also need a tune cause it will run lean cause of alot more air going in. also, the better it sucks air in, the better it needs to let it out, put an x-pipe on it. then there are also gears that can be put on it.
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378 Posts
PM me your address and I can find out what shipping would be.
As for swapping out your h pipe, it depends on what your looking for sound wise, hp wise your only looking at a couple horses if that. X pipe is more raspy like Nascar and H pipe sounds more like the classic muscle car...plenty of sound clips on youtube
As for swapping out your h pipe, it depends on what your looking for sound wise, hp wise your only looking at a couple horses if that. X pipe is more raspy like Nascar and H pipe sounds more like the classic muscle car...plenty of sound clips on youtube
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378 Posts
Anything you do to your car as far as performance goes is going to affect your gas mieage. If your just driving it not so much , but if your into the throttle all the time than ofcourse. One thing it will do is give it a deeper tone and better acceleration
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