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Honda MX & Off-Road Dirt Bikes
CRF450R Y09 - RECALL? - 1st Ride Report
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[QUOTE="Rich Rohrich, post: 1324117, member: 16241"] You have that backwards. When you increase the tuned length of the pipe you shift the area under the torque peak to a lower rpm range and tend limit the peak rpm horsepower. Knowing how little was available in the exhaust system on every 450 over the last 7 years I find it really difficult to believe that Yoshimura found 4 horsepower in the exhaust on an engine this highly developed even with an ECU remap. With out any changes to the ECU... :whoa: well let's just say I have more faith in verifiable science than some marketing department's wet dream so you can mark me down as [b]highly skeptical[/b]. ;) I hope it works out for you and you get the results you are shooting for. If you ever get the chance to compare the OEM exhaust with the Yosh system back to back I hope you'll post your results. Thanks for sharing the info on this. :cool: [/QUOTE]
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Dirt Bike Discussions By Brand
Honda MX & Off-Road Dirt Bikes
CRF450R Y09 - RECALL? - 1st Ride Report
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