• 4 Stroke Husqvarna Motorcycles Made In Italy - About 1989 to 2014
    TE = 4st Enduro & TC = 4st Cross

  • Hi everyone,

    As you all know, Coffee (Dean) passed away a couple of years ago. I am Dean's ex-wife's husband and happen to have spent my career in tech. Over the years, I occasionally helped Dean with various tech issues.

    When he passed, I worked with his kids to gather the necessary credentials to keep this site running. Since then (and for however long they worked with Coffee), Woodschick and Dirtdame have been maintaining the site and covering the costs. Without their hard work and financial support, CafeHusky would have been lost.

    Over the past couple of weeks, I’ve been working to migrate the site to a free cloud compute instance so that Woodschick and Dirtdame no longer have to fund it. At the same time, I’ve updated the site to a current version of XenForo (the discussion software it runs on). The previous version was outdated and no longer supported.

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    Coffee didn’t document the work he did on the site, so I’ve been digging through the old setup to understand how everything was running. There may still be things I’ve missed. One known issue is that email functionality is not yet working on the new site, but I hope to resolve this over time.

    Thanks for your patience and support!

Slip-on silencer suggestions for TE511?

Tinken

Husqvarna
Pro Class
So I called up FMF today looking to buy a new Q4 silencer slip-on for my TE511. I spoke with two different people who basically handed me off to a third. FMF staff told me that they never made a Q4 silencer for the TE/TXC 449/511 and has no future plans of doing so.
So I explained that Chilly has a Q4 silencer on his 2012 TE511 accessories review.

FMF Power Bomb Header & Q4 Silencer- $675
This system fits great. The increase in power and throttle response is very obvious. There is almost six pounds of weight savings over the stock system also. For general off road use, I can give this a whole-hearted recommendation. I find it just a little too loud for street use. It is louder than the older versions of the Q4 that I have on my own dual sport bike. For example, Neena commented that she can hear me coming up the street on this bike, but she had never noticed it with other bikes. As for other choices, the Akrapovic is perhaps the most common other exhaust for these Husky’s. They are a nice unit, but I have heard some horror stories about owners trying to get replacement parts for them. http://www.enduro360.com/2012/04/05/uncharacterised-posts/2012-husqvarna-te511-test-page-2/

FMF responded saying, “We custom make setups for the racing community and such is the case for what we did for Chilly.”

Can I order a custom FMF Q4?
FMF: “You must order 25 units to get one customized…”

Did Chilly order 25 units to get one customized?

FMF: No Answer.
 
Is that the same as a Q4 slip-on or how might it differ?

I am not sure what the deference is. My buddy has the "Q" on a Katoom and it looks the same except for the Sticker. If there is a deference it has to be on the baffle inside.

FMF-Q4-Slip-On-Exhaust.jpg
fmf_79-1420.jpg
 
Another approach might be to use the Akro can from a TXC. Somebody must have swapped one out. Personally I think the Akro has a nice quiet tone.
 
Another approach might be to use the Akro can from a TXC. Somebody must have swapped one out. Personally I think the Akro has a nice quiet tone.
I wondered the same thing today, so I called and checked the price on that unit. $900 for the silencer alone, not including any clamps, screws or heat shields. I like the Akro tone, but not 900 dollars much.

I was wondering if the exhaust from at TC449 would fit on a TE/TXC? FMF does make the Q4 silencer for the TC449, as well as the entire header/megabomb.
 
Chilly says:
August 30, 2012 at 12:31 pm
Hi Michael
Yes, I had a discussion with FMF when I got that. They only list it at a TC449/511 application. It is all the same and fits fine. They were supposed to update that information in their system. According to the info on the FMF site, the Q is only available as a full system, and the 4.1 as a slip on. But I am not sure if that info is up to date or not. I felt the Q on this bike was a little loud for street use.
Here is the link: http://www.fmfracing.com/Products/BikeAsList/2012_HUSQVARNA_TC449
For the Husky, you do not use the O2 sensor that is in the stock header, but it does not seem to have an impact on how the bike runs.

Thanks Chilly! Whooo Hooo :D
And thank you everyone who help in the thread!
 
So the Q4 silencer for a TC449/511 fits on the stock header of a TE449/511? I thought the header pipe was a different diameter on the TC. If they are the same then a Megabomb header for a TC449/511 should fit on a TE449/511 and be able to use an existing silencer (for those of us who already have an aftermarket silencer, but factory header). Does this sound right to you guys?
 
Chilly says: For the Husky, you do not use the O2 sensor that is in the stock header, but it does not seem to have an impact on how the bike runs.

When JD dyno'ed my TE511 for the EFI tuner he said the maps did not change when you unpluged the O2 sensor and everything looked right on his o2 sniffer. Basically makes no change as Chilly says. Will give you a fault code on your dash though.
 
So the Q4 silencer for a TC449/511 fits on the stock header of a TE449/511? I thought the header pipe was a different diameter on the TC. If they are the same then a Megabomb header for a TC449/511 should fit on a TE449/511 and be able to use an existing silencer (for those of us who already have an aftermarket silencer, but factory header). Does this sound right to you guys?

The TC449 silencer does not fit the TE header. The TC header & silencer will fit on at TE if purchased together. The TE header & silencer has two 45° bends, where as the TC header is straight. If you have already purchased the TE silencer and would like a megabomb header, you will have to have the 45° bend removed from your silencer or added to your header. The megabomb header will give you more torque/hp and lower the dB of your exhaust.
 
The TC449 silencer does not fit the TE header. The TC header & silencer will fit on at TE if purchased together. The TE header & silencer has two 45° bends, where as the TC header is straight. If you have already purchased the TE silencer and would like a megabomb header, you will have to have the 45° bend removed from your silencer or added to your header. The megabomb header will give you more torque/hp and lower the dB of your exhaust.

Ok, thanks for the info. That's exactly the boat I am in. I have the silencer, but would like to add a header for power and a quieter sound. As long as the pipe diameter is the same between them I could probably cut, weld and modify the 45 degree mid-pipe area on the silencer and fit them together. It's something to think about. Of course if I had been smart and thought ahead I would have done the research like you and just ordered the TC449 system.
 
Yes, they are the same diameter, just the two 45° bends on the TE/TXC's. My exhaust system is going to have to wait for now, but I will be ordering the FMF Q4 with the mega bomb header (TC449) which will put the TE511 @ 95 dB (96dB is the absolute limit here in Socal).
 
Found some interesting pictures of the interior of an FMF Megabomb... Neat invention gives you the long header torque of a TE/TXC and the top end power of a TC.
 

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These fit the TE 250/310s and yield an additional 3hp, about the same amount as the MY13's add to the '12s.
FMF #045491 US $179.96

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