cut muffler

[Aussy-Boyz]

Whats the best way to a cut a muffler its a 250 sxf 07 and how much. trying to make it a bit snappyer. is it worth it?

[DoonsFMX.]

dude theres already a thread on here about cutting mufflers try searching for this kind of stuff before starting pointless new threads cheers.

[Aussy-Boyz]

Man do run this joint or something sounds like you no everything so why dont you tell me what i need to know if its already on here. I have searched theres flop all on here not what i want to find out. So if you dont want to give me any info dont even post, ya make ya self look like a tool bag.

[bryceinator189]

just cut it with a grinder. and drill holes for the rivets. i wouldnt bother but. its not gunna make much difference. if u want to make better proformance. go out and buy a fmf shorty or sumthin along them lines. if u got like 400 spare lol

[Aussy-Boyz]

cool man at least some one can give a bit of info. yeah wasnt real sure on the idea thort i read some were if ya cut em down it makes them a bit more snappy. Might just leave it. cheers man

[DAN_125]

If its an aluminum muffler I wouldn't touch it with a grinder. Aluminum melts when you cut it with a grinder and it leaves a dodgy cut. If you are serious about cutting it back use a cold saw or a hack saw and just use a drill for the rivets. I will be cutting my muffler back soon and I plan on using either a cold saw from work or a hack saw at home.

[Aussy-Boyz]

cool yeah i was thinking that would be better than a grinder, would get it straighter cut with a hacksaw. You guys thinkin of 2 strokes cause mine is a 4 is it ok for 4 strokes?

[ABD]

lol dude why the hell would you want to cut your muffler!!!, the best bet get a aftermarket one but even then i wouldn cut a stock muffler it wont realli make it faster just louder but then again its your bike if i was to do it prolly just a hacksaw or some neat grinding

[DAN_125]

Im not to sure what the go is with 4 strokes and cutting the muffler down. I don't think it would help to much.

However, I do know that the stock 2007 YZ 125 muffler is the best you can get for it as it is the widest in the guts compared to the aftermarket ones. So if you slap an after market muffler on its really a down grade. So the best muffler performance mod you can do on a 2007 YZ 125 is cut the stock muffler down by about 75mm and remove the restricter that is in the end of the stock muffler.

[yamaha bevin]

yeh ive cut down the rear muffler on my yz250f didnt make a diff but in noise its like a tad louder tho no power wise i just done mine b4 coz it was really long and ugly

[DoonsFMX.]

http://www.fmxaustralia.com/forum/showthread.php?t=3164&highlight=cutting+muffler

theres a whole 3 pages of it for you to look through mate, no need to be a little smartass about it. And theres a google button that aint that hard to use

[bryce4887]

I agree mod the stock

[kendawg]

usually people only cut 4 banga mufflers if they are too long. Yzf mufflers are reallllllllly long and look pretty ugly so thats why people cut em down