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Old 11-17-2008, 12:36 PM   #1
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removing muffler..

If I remove my muffler and do straight pipe will my gsxr sound stupid? or will it sound rather nice? also will it decrease my performance on the bike?
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Old 11-17-2008, 12:37 PM   #2
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it will sound like ....... it will decrease performance due to no back pressure.....
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Old 11-17-2008, 12:44 PM   #3
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Sounds like and will get the attention of every cop within 5 miles even at idle. Also makes you look dumb when someone hears you commin and it sounds as though you are doin about 300 mph when your really only doin 10
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Old 11-17-2008, 12:56 PM   #4
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Old 11-17-2008, 01:01 PM   #5
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Old 11-17-2008, 01:06 PM   #6
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Quote:
Originally Posted by CaligoneTx View Post
Even if you had a restrictive oem header and mid pipe w baffling, you need more backpressure for the overlap between valves when the exhaust and inlet valves are open at the same time.

As the inert gases leave the combustion chambers, the fresh air/fuel is entering. Without backpressure the new mixture could come out of the exhaust port as well, especially at a higher rpm.

This is how exhaust valves are burnt.

Mine, w a full muzzy system cracks like a drag car at idle, sounds good and drowns out any harley in the area but if you like your engine you wont run it that way.
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Old 11-17-2008, 01:45 PM   #7
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I started up the busa at Yankees yesterday w no exhaust... manifold only(muzzy) and rode around the parkinglot to shut up those harleys from revving their engines...

I never broke 5krpms; and if you did hear it, when I deceled to idle at the stop sign, all that back firing/gurgling etc is the noise of air funneling back through the exhaust and up to the valves; which causes a burnt valve if allowed to continue.
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Old 11-17-2008, 02:32 PM   #8
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yea I did hear the busa fire up yesterday and it sounded pretty loud! but I do see where you guys are coming from just figured i would throw that question out there.

by the way what can i do or install to make the Gixxr sound a bit louder not because i want to look like an idiot rice burner but because there are tons of times drivers can not hear me in back of them or coming from a far.. in other words to avoid those idiots that do not look while turning..
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Old 11-17-2008, 02:33 PM   #9
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D&D Exhaust. OR remove your stock baffles/install A&R race baffles.
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Old 11-17-2008, 02:34 PM   #10
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are you the dude with the yellow/blk chrome frame gsxr?>
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Old 11-17-2008, 02:41 PM   #11
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THat is a big negative sir!! I had the all Black Gsxr
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Old 11-17-2008, 02:44 PM   #12
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THat is a big negative sir!! I had the all Black Gsxr
hahah good deal, never mind then
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Old 11-17-2008, 02:47 PM   #13
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Old 11-17-2008, 02:54 PM   #14
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I just passed a guy on a new model silver zx-6r with his gf on the back in an army shirt and his bike either had a D&D or no pipe and it sounded like .

it didnt help that as he went past me he missed a shift and everyone could hear it plain as day which made me laugh. then he hit it and the back preasure went pop pop pop pop.

I lawled on the way to work.
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