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Old 03-05-2013, 09:55 PM
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FMF exhaust with MegaBomb or Yoshimura RS 5?

I'm going to upgrade my 07LTR with Hotcam stage 1 camshafts, 13.5 CP piston, Cherry Bomb.
which full exhaust system will suitable for this? FMF 4.1 with megabomb or Yoshi titanium full system RS5?
Or just stock with baffle out ??
Also, does PC V + auto tune can fit 07 LTR? or just PC III ?
thanks guy ~

Last edited by legend3594; 03-06-2013 at 08:22 AM.
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Old 03-06-2013, 06:20 AM
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Dyno results weren't very nice to the FMF exhausts. the Yosh has good gains. The PCV will work on any year LTR. I've never heard of the PC4.


Four (4) '06 LTR450's, '07 CRF250R, '09 CRF150RB


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Old 03-06-2013, 08:21 AM
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Quote: Originally Posted by CQR View Post
Dyno results weren't very nice to the FMF exhausts. the Yosh has good gains. The PCV will work on any year LTR. I've never heard of the PC4.
Sorry for wrong typing , adtually is PC V. So get PC V should be better than PC III sicnce is latest product
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Old 03-06-2013, 11:29 PM
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PC3 will work but pc5 is nice if you upgrade to auto tune otherwise a used pc3 for cheap will do the trick


'08 black- my whip: full RS-5, PC3, 400ex and HC intake=budget build. Walsh, fox, dwt, flexx, and goldspeed. Soon to be Vader ported head KMS V2+.

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Old 03-07-2013, 12:33 AM
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From what i see at the atv nationals, alot of people are running FMF pipes, i had a full system Yosh rs5 and also a FMF 4.1 with the powerbomb, cant tell the difference becuase i added a 474cc bore kit when i added the FMF. But i will say my Yoshimura pipe will last many years longer than the FMF i have on it.


2006 Ltr450 practice bike.. Fox front and rear shocks, Walsh a-arms/savior linkage swingarm, Yoshimura RS5 full exhaust, DWT's all around, Precision stabilizer, custom graphics from SSI Decals, lol the normal motorwork on racing quads (cams, high comp piston,)...

2007 Ltr450 -stock...for sale

2008 LTR450 2012 Pro-am race quad
-474cc big bore from Cylinder works, with 13.1 Wiseco piston, mild head work.
+1 Xceldyne Intake Valves
PC3 Tuned for pure VP113
FMF 4.1 with powerbomb header
13-38 gearing
-Walsh custom intake with monster K&N clamped on
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Old 03-07-2013, 05:05 PM
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i own both and the fmf is a pile i have the titanium version the megabomb spilt once and had to be rewelded and then i repacked it did all the normal stuff and it didnt even last a 1 hour winter xc race the core broke off the tip end of the pipe. my yosh is 4 years old and has never given me an ounce of problems. bushings were worn last year and yosh replaced for free just my .02 and i think yosh pulls better my xc bike felt flat with fmf


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Old 03-11-2013, 03:04 AM
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thanks for all.
so, I should go for Yoshi. There are two version, one is stainless steel and the other is titanium ver., price is very different. which one is better ?
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Old 03-11-2013, 08:15 AM
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Same pipe, the titanium is a little lighter.


06 LTR- race quad
09 KTM 505sx- trail/duner/back up racer
09 YFZ450R- wife's
05 Blaster- daughter's
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Old 03-12-2013, 02:39 PM
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Yosh for ltr!

Sparks for Honda.

I swear by it and have never been let down.


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Old 03-16-2013, 07:04 PM
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I like the Yosh also but the Ti is way overpriced for the little bit of weight you save


2007 Suzuki LTR450 building for XC/ 2006 YZ450F full of mods
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