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Exhausts Exhausts - Headers, Mid Pipes, Mufflers

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March 31st, 2012, 01:13 PM   #51
Joined: Feb 2012
From: Gering, Nebraska

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I Ride: Husaberg FE570
Re: FMF Ti Powercore in Blue Anodized installed on FE570

Has anyone on this forum went from the modified stock "KTM" muffler to the FMF? If they did how what kind of power and noise difference was noted.
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February 24th, 2013, 07:50 AM   #52
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Re: FMF Ti Powercore in Blue Anodized installed on FE570

Originally Posted by smorris
I just recently purchased a 2011 FE 570S (and I'm a new member here too) After scouring through some online parts fiches, I decided to go ahead and give purchasing a KTM specific exhaust a shot. I went with the newest FMF Factory 4.1 RCT Blue Anodized Titanium (because stainless was back ordered) slip on FMF part #045403. I am happy to report that the slip on fit without any issues--no grinding, no extra spacers, just slip right on.

Two things to note. It appears that the the midpipe on the KTM's may be ~0.5-1 cm longer (or the mounting points are this distance further forward on the KTM) as the slip on will not butt up against the midpipe the same as the stock one. I do not notice any leaks at the junction, but I plan on adding some Ultra Copper RTV silicone just to be safe. The second thing I feel should be noted is the sound output The exhaust did come with a spark arrestor/94 dB insert which I have not had the opportunity of installing. Hopefully this will quiet it down a bit. I hope this helps anyone on the fence about getting a blue slip on.


Sean, did the quiet insert quiet it enough for you? I keep hearing some people say they're going to the Q4, after buying the 4.1 due to excessive noise.
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