Maintenance & Technical > KX500 Original
Shortened Silencer
Motoroost1:
To my surprise , a local trail was dry enough to try the bike out . There is no question about it , the engine is stronger with the shortened silencer . The trail was a hard pack service road , and it was easy to see that lower to upper midrange torque was definitely better and the bike accellerated noticeably quicker . It reved more like my 2007 KX250 . This was a GOOD mod that was well worth the small effort to do . Looks better , sounds better and makes more power . I'm happy :)
martyestes:
I'm planning on taking off about 3 inches from my Pro Circuit 304. I'm not into "loud" but I do want to hear that incredible sound when I'm out there with a sea of loud 4strokes. Back in the early 90's when I raced a CR500, the silencers were quite a bit shorter and the bike sounded incredible. For off-road use, I have a long/quiet Spark Arrestor.
suva57:
I shortened my stocker at one point too, I forget how much but I cut enough off the front of the muffler so the rear mount lined up with the front mounting hole, then I welded the front mount behind what was the rear mount so that it lined up with the other mounting hole. I cut from the front so I could keep the nice looking stock rounded end and to minimize welding. It sounded awesome, a little louder than stock but with a much sharper bark. It improved low-end power but definitely hurt the top end.
I ran it for a while like that but eventually switched to an FMF spark arrester when I got tired of welding the core back together.
cobbs:
fmf and pro circuit silencers suck they are way overkill (too long and congested)for something that should be a performance part I will never run them again Im using an hpd silencer much better performance, sound and look but that's cool you guys actually decided to make them better buy shortening them
Motoroost1:
I'm not familar with an HPD silencer . Do they have a website ?
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