Thread: backpressure
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  #23  
Old 11-11-2002, 04:09 PM
oab_au oab_au is offline
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Quote:
Originally posted by cjoffe
Both 4-stroke inline 4 cylinder bikes. Yamaha R1 and Honda 929. There may be more by now, but those are the two I know of. I know that if you replace the exhaust and remove the valve, you lose torque but gain top-end HP. I know that when I removed the cats on my 928, I lost torque but gained top-end (and noise!).

CJ
Don't. know mate, I will have a look see whats it's about.

It would not be the first time that they use some device to astound the oppersition. Remember the oval pistons, anti-dive front ends.

Harvey.
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