The CAI will be worth, at the most, 7-8hp, the gains come mainly from the tune. The long tubes were worth 15 on mine, and I regretted deleting the cats almost instantly. Since my car was brand new when we started, I had a two year inspection sticker, but after that ran out, it was a major PITA to get the car inspected. Even after replacing the cats, the car was nowhere near passing, so in the end, I did what I usually do in these situations, threw cash at it. The factory headers and cats are amazingly efficient, as is the factory air box. Bone stock, with just a tune from VMP, I ran 12 flats at 116. Mid 11's are obtainable through nothing more than a tune and suspension work, and looking back, I wish I would never had the long tubes installed.
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