FMF Q4 slip on for 09, ebay store.
Junior Member
Joined: Sep 2007
Posts: 2
What a dent in a four stroke pipe could do is cause turbulence in the exiting exhaust stream. This turbulence might cause performance issues by slowing the exhaust on the way out. But nothing like a dent in a two cycle pipe would.
A trick to remove dents in the header is to put water in the pipe and put it in the freezer. The expanding water will push the dent out. You have to be careful with this, however, as it can also pop the welds. This is more dangerous with two cycle expansion chambers - but should be pretty safe with a four stroke header.
Junior Member
Joined: Sep 2008
Posts: 3
hey capt. you have just been initiated
. you can't reason with the little guy. it's senseless to even try. nobrakes knows more than 90% of us and gets attacked annually. sometimes bi-annually. he just pokes the little s**t to rev him up then lets it go. you should do the same. stick around for a while and you'll see a pattern develope. in a week or so he'll be contradicting himself on most of what he wrote in this thread. Then the fun really starts cause there are guys in here who catch him doing it. it's a riot..... i love that part.
. you can't reason with the little guy. it's senseless to even try. nobrakes knows more than 90% of us and gets attacked annually. sometimes bi-annually. he just pokes the little s**t to rev him up then lets it go. you should do the same. stick around for a while and you'll see a pattern develope. in a week or so he'll be contradicting himself on most of what he wrote in this thread. Then the fun really starts cause there are guys in here who catch him doing it. it's a riot..... i love that part.posted 6/26/08 in the thread "FMF Q4 slip on for 09, ebay store." by none other than 09KLXowner
ps. brian, you can't be so naive to the fact that unless those sponsors didn't offer their product for free that the pros would be paying to use them. they put their sticker on their fender and the rider gets free exhausts. you have seen nascar, right? it's not about who has the best exhaust, it's who gives who their exhausts in exchange for a place on their fender. I'm not sure, but I think I remember MC, RC, and Bubba all running Pro-Circuit full systems. betcha didn't snap a shot of any of those bikes did you?
so RC would've run any filter in his perfect season just as long as it was donated to him? that's crap. Air filters being as cheap as they are, his team picked the best one and uesd it. Also, you've never been to an outdoor national have you? "watered down" is incorrect. also, 'closed course circuits?' where do you want them to ride, down the interstate? WTF?
you think racers just use specific brands of gear because they get a check from the manufacturer? so before Nicky Hayden took a crap on himself and got all bigheaded and couldn't ride with the top anymore, you think he would've used Z1R helmets before an Arai if the lids were free of charge?
you think racers just use specific brands of gear because they get a check from the manufacturer? so before Nicky Hayden took a crap on himself and got all bigheaded and couldn't ride with the top anymore, you think he would've used Z1R helmets before an Arai if the lids were free of charge?
Senior Member
1st Gear Member
Joined: Jul 2008
Posts: 852
From: Austin, TX
LOL, trust me, you don't need to ask others if this is true? I've owned both an '06 and an '09, the frames are identical. Do a search and you'll see tons of info about the pipes fitting all years of the KLX250S. The FMF is huge though, sobe warned and looks ridiculous hanging off the back, like a growth if you will coming from behind the sidepanel. Search for pics and you'll see what I'm talking about. It will sustain damage in a crash as it sticks out nearly past the rear fender. flame on!!
I think the muzzy looks stupid. That extend-o spout on the end looks like a 2 year old designed it.
edit: forget it, I thought this was a new thread....I can't even talk the only mods I've done is the seat strap and chain guard!
Last edited by je2000; Sep 10, 2008 at 02:07 PM.
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