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post #1 of 3 Old 12-10-2016, 05:28 PM Thread Starter
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Join Date: Oct 2016
Location: Birmingham
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Need help.

Hey guys, I'm new to the site, got a 2000 zx12r A1 a few months ago. It has a kit from bullet cams, .276/.280 cams, and the rest of the motor is built very nice. Crazy fast, just one thing. It has a 3in exhaust with a can that's 3 & 1/2 inches, let alone it's hollow and very loud. I want to quiet it down some,it runs like hell. 13.4:1 compression pistons need a bigger exhaust but man, I'd love to find a 3inch muffler to fit on it. I've had a few bikes, slingshot Suzuki, R1, zx10r but none run like this 12, just want to quiet it down but having trouble finding a muffler big enough for it. Hope everyone is having a great holiday season, any feedback is very much appreciated. If anyone knows of a good can I can get, I've got some cash. Can't swing some crazy amount but I'll do my best. Thanks
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post #2 of 3 Old 12-11-2016, 02:29 PM
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No need for anything more then 2.5" on an all motor bike. 3" is overkill and you might even be losing power. What header is on it?
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post #3 of 3 Old 12-12-2016, 04:21 PM
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most are only 2.25. you can push 500+hp with a 2.5in exh (and a turbo)

upload some pics of what you have.

01 ZX-12R 8.84 @ 156.3 on dot tires, NA.... turbo 8.47 @ 164
00 ZX-12R 8.62 @ 165.2 no bars, slicks, 55 shot... turbo 8.32 @ 173
00 ZX-12R 1: 222.046 1.5: 226.390 Worlds Fastest NA Kawasaki
00 ZX-12R street turbo 1: 227.9 1.5: 234.1
00 ZX-12R LSR turbo 1: 249.5 1.5: 266.5 Worlds fastest ZX-12R CMG Racing RCC Turbos
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