I recently installed a black to green faded micron slip on to my '02 zx9r because the serpent headers aren't available for carbureted bikes, yet. Prior to that I ordered a full system from HMF Engineering with a beautiful black powder coated canister but they sent the '01 version. I have a buddy who went the "conventional" way with good old Muzzy. With the full Muzzy ti system and rejetting, he's claiming gains of 7-8 hp on the dyno. I did read the article with the Ak system adding 10 hp to the bike but unfortunately, the pipe is yet available... I checked!!! If you want to avoid a migraine, refrain from dealing with the following companies and their customer service departments: HMF Engineering, Micron, Wolf Exhausts, Boss Exhausts, Lockhart Phillips, and Quill... None of 'em have us on their "to do" list!!! I learned the hard way!
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