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Buell Forum » 1125R Superbike Board » Archive through September 11, 2015 » Remus pipe length « Previous Next »

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Theshinenz
Posted on Saturday, August 29, 2015 - 09:44 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Question for any techies who know about exhaust tuning, I have a Remus pipe on my 1125cr running the ebr ecm but don't like how long the exit pipe is, would shortening it up 100-150mm change performance performance/ tuning much?
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Ebmachine
Posted on Sunday, August 30, 2015 - 03:33 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Longer exhaust does the best job building horsepower and torque from mid-to-high RPMs. A shorter pipe generally delivers more horsepower and torque from idle to the mid-RPM range.
A bigger factor involves the length of the primary tubes, any stepping in size, and finally the length of the collector.
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Theshinenz
Posted on Sunday, August 30, 2015 - 05:12 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Thanks EB, the primary tubes etc obviously would stay the same but am guessing Im better to either change to a different exhaust or leave it as is.
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D_adams
Posted on Sunday, August 30, 2015 - 06:15 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Why are you wanting to change it? Sound or performance?
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Theshinenz
Posted on Sunday, August 30, 2015 - 06:25 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Mainly for looks Dean, dont like the long exit pipe on it, Id love one of your exhausts, my Mrs has the RT4 on hers, but its a little loud for me, and now I cannot reprogram my EBR ECM easily with EBR not currently up and running. I did have a barkers in my last CR which i quite liked as it performed really well, but didnt like that it needs repacking. Also considered the torque hammer 2 kit but very expensive out of Europe. I am in Australia.
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