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CRF450 Exhaust on F4i

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Old 12-05-2008, 03:48 PM
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CRF450 Exhaust on F4i
I have a brand new CRF450 exhaust here. It's an FMF. Holding it up next to my F4i exhaust it seems to have the exact same bend and I think it'll work. Has anyone ever tried to mount one up? It's a quiet series FMF pipe and I'm thinking IF it'll mount up it might be real nice and give me some more back pressure.

Yes, I know I could just go try it out but I'm sitting here in my PJ's and figured I'd just throw it out there and see what y'all have tried.

I know Bill D runs a quad pipe or some **** on his R6 sometimes..
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Old 12-05-2008, 03:48 PM
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Re: CRF450 Exhaust on F4i
It's also longer than my cut down exhaust but mounts way lower so I could leave it the full length which would be sweet.
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Old 12-05-2008, 03:49 PM
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Re: CRF450 Exhaust on F4i
Sounds like a project to me. DO IT!
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Old 12-05-2008, 03:51 PM
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Re: CRF450 Exhaust on F4i
Originally Posted by SAMBO
Sounds like a project to me. DO IT!
Yea yea.. I'm just being lazy and stunting the computer right now.
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Old 12-05-2008, 03:51 PM
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Re: CRF450 Exhaust on F4i
then get walking your lazy *** in your pj's to check lol . how can u still be in your pj's btw ?????
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Old 12-05-2008, 03:52 PM
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Re: CRF450 Exhaust on F4i
Originally Posted by juzslidin
then get walking your lazy *** in your pj's to check lol . how can u still be in your pj's btw ?????
Got a new job working nights... I go to bed at like 6-7am and sleep till like 2. I ******* love it
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Old 12-05-2008, 03:53 PM
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Re: CRF450 Exhaust on F4i
The only issue I see is that on a standard F4i pipe it slides OVER the header and gets clamped. The pipe on the 450 exhaust looks like the header would slide over it and then get clamped down.
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Old 12-05-2008, 03:56 PM
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Re: CRF450 Exhaust on F4i
Originally Posted by nags
Got a new job working nights... I go to bed at like 6-7am and sleep till like 2. I ******* love it
ahhh , that explains it . how do u like it other than love the hours ?
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Old 12-05-2008, 03:57 PM
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Re: CRF450 Exhaust on F4i
Originally Posted by juzslidin
ahhh , that explains it . how do u like it other than love the hours ?
It's ******' sweet.. Only like 4 days a week and I just hang out for the most part. And I'm making more money than before. Plus I get paid cash
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Old 12-05-2008, 03:57 PM
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Re: CRF450 Exhaust on F4i
Originally Posted by nags
The only issue I see is that on a standard F4i pipe it slides OVER the header and gets clamped. The pipe on the 450 exhaust looks like the header would slide over it and then get clamped down.
simple fix , if its a close fit , find someone with an exhaust expander . i got them , but your not local lol
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Old 12-05-2008, 03:58 PM
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Re: CRF450 Exhaust on F4i
Originally Posted by nags
It's ******' sweet.. Only like 4 days a week and I just hang out for the most part. And I'm making more money than before. Plus I get paid cash
sweet ! is it permanent cash , or just like a month test type thing then on the books
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Old 12-05-2008, 03:58 PM
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Re: CRF450 Exhaust on F4i
Originally Posted by juzslidin
simple fix , if its a close fit , find someone with an exhaust expander . i got them , but your not local lol
Ya think do that or just slide the 450 exhaust in the header and clamp down on it?
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Old 12-05-2008, 03:59 PM
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Re: CRF450 Exhaust on F4i
Originally Posted by juzslidin
sweet ! is it permanent cash , or just like a month test type thing then on the books
Permanent.. Which means I still keep the other stuff once I get approved
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Old 12-05-2008, 04:07 PM
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Re: CRF450 Exhaust on F4i
What year 450 is it to? My buddy needs one for his '06.
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Old 12-05-2008, 04:11 PM
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Re: CRF450 Exhaust on F4i
Originally Posted by nags
Ya think do that or just slide the 450 exhaust in the header and clamp down on it?
my r6 pipe slide into my f4i header and i just tack weld it on and wrapped it to seal it.
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Old 12-05-2008, 04:13 PM
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Re: CRF450 Exhaust on F4i
Originally Posted by nags
Ya think do that or just slide the 450 exhaust in the header and clamp down on it?
that could work . look into an automotive band clamp . wont screw up the header , and will seal
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Old 12-05-2008, 04:14 PM
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Re: CRF450 Exhaust on F4i
Originally Posted by nags
Permanent.. Which means I still keep the other stuff once I get approved

**** they hiring??? i need a job.
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Old 12-05-2008, 06:48 PM
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Re: CRF450 Exhaust on F4i
Originally Posted by faceless
**** they hiring??? i need a job.
Nope
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Old 12-05-2008, 06:48 PM
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Re: CRF450 Exhaust on F4i
Originally Posted by Hazen
What year 450 is it to? My buddy needs one for his '06.
I think 04
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Old 12-05-2008, 06:49 PM
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Re: CRF450 Exhaust on F4i
Originally Posted by juzslidin
that could work . look into an automotive band clamp . wont screw up the header , and will seal
Word. I'll give it a shot
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