06 450 slip-on exhaust

10 replies to this topic
  • ellis269

Posted May 21, 2006 - 03:54 PM


I crashed my bike yesterday and ruined my exhaust. All I want to put on is a slip-on,already has plenty of power. I am looking for a slip-on that is not too loud,close to stock. Thinking about the FMF 4.1. I could always add a mega bomb later. Thanks for any help,did a search but didnt come up with much.

  • mlight9

Posted May 22, 2006 - 09:38 AM


They just did a test on pipes in the new Dirt rider they used a KX 450. I know it's the wrong bike but they tested a bunch of different pipes. Good Luck

  • Reyndogg

Posted May 22, 2006 - 09:53 AM


I have the Factory 4.1. I like it a lot. Much smaller than stock, looks/sounds better for sure.

It's a bit pricy with the ti mid pipe for some people. FMF makes a powercore ti (for ~$299) that looks good for much less coin.

  • kpflyingv

Posted May 22, 2006 - 12:36 PM


I use the FMF Powercore Ti and it's great. Quiet too.

  • aedwards07

Posted May 22, 2006 - 12:56 PM


I have the Factory 4.1 and its a really nice pipe.

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  • mitocross

Posted May 23, 2006 - 11:33 PM


Do some of you guys use the FMF 4.1 Carbon slip-on? I have an order on one for months now and it doesn't arive.
Do you see them in shops in the US or does FMF have a problem producing them?
Thank you for any info :ride:


Posted May 24, 2006 - 12:30 PM


The 4.1 is louder. If you want a pipe that sounds really close to stock, get the GYTR. However, do a search and you'll find that most people disliked the GYTR exhausts on the previous model-year YZF's. For 2006 they are all new. Check them out:



Posted May 24, 2006 - 12:32 PM


There are a few different systems to choose from, reasonably priced:




  • dbehr624

Posted May 24, 2006 - 04:58 PM


From what i hear, get the GYTR. I have talked to some guys at the local dealer, which also sell other brands, and they said that the GYTR is the way to go!!! :ride:

  • Fastdaddy

Posted May 24, 2006 - 05:43 PM


If you haven't got the carbon fiber can yet, I would try the aluminum one the carbon fiber looks cool but they are not really all there cracked up to be when it comes to durability.

  • black_n_blue_thumper

Posted May 24, 2006 - 10:36 PM


I have a Carbon 4.1. Its awesome. It has taken some nasty crashes. Good as new. I ordered mine in Febraury, got it in like a week. :ride:

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