fmf 4.1 exhaust vs motoworks sr4 - Club700XX - Honda TRX700XX Forum
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post #1 of 23 Old 02-14-2009, 10:52 PM Thread Starter
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fmf 4.1 exhaust vs motoworks sr4

hello all, I am not new here but havent posted any thing cause i didnt have a quad untill this past friday when i bought my new xx and I am vary happy with it, still doing the brake in process and vary happy with my new quad.


any way back to buisness... some time down the line i will put a new exhaust on and after reading and reading i have narrowed my choices down to 2 exhaust, one being the fmf, I am new to off road exhaust but i know fmf has been around for some time, how ever i have also read about the huge hp gains of the motoworks exhaust.

well iam not sure which one to but.. and was looking for input to help my decision, can any of you tell me which you would choose if you only had these two to pick from for your 700xx and why ?

thanks in advance
james
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post #2 of 23 Old 02-17-2009, 09:16 AM
 
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The FMF is super nice, but I can't honestly say anything bad about any of the muffler manufacturers at this time.

I have a 2nd hand Two Brothers Racing slip on that I bought from a forum member and I really, really like it a lot. It's pretty loud though. (and I love it)

On a previous quad I had an HMF muffler and I liked it equally as well but it seems as though the one I had shown below would have been a PITA to repack when the time came.





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post #3 of 23 Old 02-17-2009, 10:16 AM Thread Starter
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thanks for the heads up, loud is good........ how about the power gains from it ?
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post #4 of 23 Old 02-17-2009, 01:07 PM
 
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When I first put them on I giggled like a schoolkid.

3rd gear pulls awesome now. Wheels go in the air easy without clutching.



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post #5 of 23 Old 02-17-2009, 02:52 PM
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I just got my FMF 4.1 also, but have not installed them yet. When you guys talk about the loudness and the hp gain, is that with or without the spark arrestor?

I thought I had seen somewhere the claimed hp gains....anyone know if they were they with or without the arrestor?
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post #6 of 23 Old 02-17-2009, 03:21 PM
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Originally Posted by ara View Post
I just got my FMF 4.1 also, but have not installed them yet. When you guys talk about the loudness and the hp gain, is that with or without the spark arrestor?

I thought I had seen somewhere the claimed hp gains....anyone know if they were they with or without the arrestor?
My 4.1 didnt come with the arrestor installed. There is a ring in the end of the pipe, but its not holding anything in place. The hp gains that FMF claims for the 4.1 are without the arrestor.
The 2bros pipe Scuzz has is loud, with or without the arrestor, but its a nice deep loud.

08 700XX, FMF pipe, PC3, Velocity filter, OMF Beadlocks, PRM nerfs, bumpers and skids, Maxxis Razr's font and rear, Sonic anti-roll bar( BEST MOD AVAILABLE), Vapor dash, Pro-taper bars

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post #7 of 23 Old 02-17-2009, 04:21 PM
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My 4.1 didnt come with the arrestor installed. There is a ring in the end of the pipe, but its not holding anything in place. The hp gains that FMF claims for the 4.1 are without the arrestor.
The 2bros pipe Scuzz has is loud, with or without the arrestor, but its a nice deep loud.

I thought that ring at the tip was the arrestor. So it's not?
I emailed Leeson's, where I purchased the FMF, and he replied that the system comes with it.

There is trail park in PA I want to ride at, and they require the arrestor.
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post #8 of 23 Old 02-17-2009, 04:29 PM
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Dave, do you know what the db is without the arrestor on the full 4.1 system?

The park requires max of 99.
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post #9 of 23 Old 02-17-2009, 04:56 PM
 
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That's at idle right?

I'm pretty (almost positive) you'd be ok.

I know the two brothers is borderline.



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post #10 of 23 Old 02-17-2009, 05:55 PM Thread Starter
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thanks for the heads up, vary intrested in which one would be the best bang for the buck
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