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Exhausts Exhausts - Headers, Mid Pipes, Mufflers

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February 21st, 2015, 08:53 PM   #1
Joined: Jun 2012
From: Baulkham Hills NSW

Posts: 42
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I Ride: 2011 Fe390 2010 Fe570 motard
Husaberg and KTM exhuast differences

Ok I've been searching the threads and can't find what I'm after.
I have a 2011 fe390 and have heard people using KTM exhausts.

I was after an FMF slip on for my bike but not many are available, if I search for KTM exc for example plenty come up.
If anyone has tried of know what will match up can you suggest it to me please
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February 23rd, 2015, 04:04 PM   #2
pjk380's Avatar
Joined: Sep 2012
From: Yorba Linda, CA

Posts: 32
Thanks: 3

I Ride: 09 FE 450, KTM 380/SmartCarb
I installed the FMF Factory 4.1 RCT Titanium slip-on muffler for the 2011-2013 ktm 250 350 450 sxf on my 09 FE 450. It bolted right up. Mounting hanger tabs matched up perfectly. However it does not seat fully up to the stop on the mid pipe. It is about 1/4 inch short. There is plenty of overlap on the muffler and mid pipe so I dont see an issue with it not seating all the way up on the mid pipe. I used some hi-temp copper RTV on the joint. The muffler is not loud using the spark arrestor insert. It's actually quieter than I thought it would be. It came with a quiet core insert and I had planned on running but using only the SA insert it has a nice deep exhaust note that is not obnoxious at all.
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March 4th, 2015, 03:17 AM   #3
Joined: Nov 2014
From: uk

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I Ride:
i put a ktm 450 sxf exhaust on my berg fe450 09 from an 08 ktm.
Sound is much better, sounds like a thumper should.
Perrformance, i hoped it would give more top end as these bikes tend to be all bottom end, it helped slightly.
keyowne is offline  
May 21st, 2016, 03:14 PM   #4
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Joined: Sep 2014
From: NV

Posts: 5
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I Ride: Plated FE 450. Orange 250. Kaw 450, XR400
Howdy pjk380
Curious how your FMF 4.1 is holding up to the stock FE 450 mid pipe? I'm considering buying the same TI pipe for my FE 450. Any updates or other suggestions would be helpful.
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