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Old 10-09-2012, 01:19 AM   #1680
pass the catnip
twinrider's Avatar
Joined: Aug 2002
Location: 日本
Oddometer: 9,490
Originally Posted by Two Plugs View Post
You will never gain extra power by just replacing the exhaust muffler. Only the sound counts. But I'm sure the V4 makes an excellent concerto... ;)

If the purpose is getting extra Bhp, you have to mod the entire exhaust system from cylinder to muffler, add a powercommander, open airfilter, etc.
My experience with before and after dyno runs (same day) tells me differently. I gained 6hp using slip-on to my VFR800 and 5 more when I went to a full system. Similar experiences with other bikes.

Agree though that uncorking the whole system gives the best results. :)
2014 350 EXC-F
2011 XT1200Z
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