Most Powerful WR450 Exhaust


20 replies to this topic
  • dazzabb

Posted September 16, 2007 - 03:03 AM

#1

If noise is not a consideration which exhaust end can (or full system) would give the best overall power increase throughout the rev range?

  • clark4131

Posted September 16, 2007 - 06:08 AM

#2

Without a dyno, that's a very subjective question. Most pipes tend to show the biggest gains in only one area, low end, mid range or top end. My advice is to do some searches using some of the more well known exhaust names and decide based on what you find. For me, I run a Dr.D pipe with an FMF SX Powerbomb. Great increase in the low end, but I've also lowered my gearing to 13/49 for the single track that I mostly ride...SC

  • Dominion

Posted September 16, 2007 - 10:53 PM

#3

search away. I have made only two posts but formulated what pipe Im going to go with by searching. :thumbsup: :thumbsup:

  • suzukipoo

Posted September 17, 2007 - 03:10 AM

#4

I got the fmf factory 4.1 slip-on and gained a boost all over the power range!
Wonderfull pipe and easy to repack.

  • xrmarty

Posted September 17, 2007 - 07:30 AM

#5

as said before, different systems have different characteristics. I got the FMF 4.1 with power bomb header and I like it a lot.

  • Mutu

Posted September 17, 2007 - 10:57 PM

#6

Dazza, I got procircuit ti gp lowboy system on my bike.

It is an all out aggressive low - mid pipe on the WR's. Awesome torque right from the get go.

I added a set of hotcams to get the power shifted up top and what I ended up with is a bike that rips from idle and doesn't let up untill you let go of the throttle. The cams softened the low end hit, added mid range and top end is AWESOME!!! On the stock cams, I feel the pipe made the power feel flat on top.

I have an '05, not sure what this pipe is like on the '07+?

My personal favorite on the '03 -'06 WR is the GYTR oval muffler. If you want linear power all the way to top, this muffler is for you!

  • dazzabb

Posted September 18, 2007 - 05:40 AM

#7

Thanks for the feedback guys.

  • Nostalgic

Posted September 18, 2007 - 05:26 PM

#8

My personal favorite on the '03 -'06 WR is the GYTR oval muffler. If you want linear power all the way to top, this muffler is for you!



x2. I have the GYTR oval and love it!

  • RSWR450F

Posted September 19, 2007 - 04:11 AM

#9

CRD QP exhaust system YAMAHA WR 450 F 2OO7:

http://www.rsracing....s/100_1985.html

http://www.rsracing....s/100_2023.html

http://www.rsracing....s/100_2018.html



RostaWR


www.rsracing.cz

  • dazzabb

Posted September 19, 2007 - 08:40 AM

#10

I ordered the Ally GYTR after a days searching and reading.

Mr Mutu + Mr Nostalgic you had better be right or I'm sending the internet thugs round to see you! :thumbsup:

Visit the ThumperTalk Store for the lowest prices on motorcycle / ATV parts and accessories - Guaranteed
  • Nostalgic

Posted September 19, 2007 - 03:46 PM

#11

Hope you enjoy it! I have the GYTR Carbon Fiber one. Is that the one you ordered?

  • dazzabb

Posted September 19, 2007 - 07:22 PM

#12

No I went for the aluminium one.

I've never had carbon on a dirt bike but from my experience on a CBR1000 the carbon can started to break up around the rivets, so I figured it would be even worse on a dirt bike.

  • Mutu

Posted September 20, 2007 - 12:31 AM

#13

I ordered the Ally GYTR after a days searching and reading.

Mr Mutu + Mr Nostalgic you had better be right or I'm sending the internet thugs round to see you! :worthy:

Ahhh, you be happy! TRUST ME! :thumbsup: :thumbsup: :thumbsup:

  • dazzabb

Posted September 20, 2007 - 03:39 AM

#14

Mutu,

Have you noticed the price of GYTR bits in Oz?

I paid US$294 (approx AUD 350) from the US.

In Oz they wanted AUD 680!! Almost double.

Even after paying shipping it was cheaper to buy from Texas!

Something wrong there mate. Its the same in Europe where we get shafted...

But anyway looking forward to making some real noise soon......

  • Mutu

Posted September 20, 2007 - 08:40 AM

#15

Yeah, I get my stuff from the states!

  • bvd

Posted December 25, 2007 - 01:39 PM

#16

My personal favorite on the '03 -'06 WR is the GYTR oval muffler. If you want linear power all the way to top, this muffler is for you!


What can you tell me about how loud this silencer is? Did you use your stock head pipe?

Thanks!
-Bill

  • race32

Posted December 25, 2007 - 04:35 PM

#17

I had the White Brothers XCR slip on using the stock head pipe after 3 rides it now lays rest in the garage. Since the WR head pipe is smaller than the YZ I have gone to the Yoshimura YZ stainless system and BAM problem solved. I cannot tell you if it is just the Yoshimura or if in fact any YZ system will solve that problem. And yes I did so with the stainless system not because of price but due to the fact I crushed 3 Ti headpipes on my 2004 in 1 season

P.S. if anyone is looking for a White Brothers XCR used send me a PM. I will be back after New Years going to race my cars and Quad.

  • WR_Dave

Posted December 26, 2007 - 07:22 AM

#18

You can always go this way and have a pipe for alot less cash. ?

http://www.thumperta...ad.php?t=349760

WR Dave.

  • dazzabb

Posted December 26, 2007 - 05:43 PM

#19

What can you tell me about how loud this silencer is? Did you use your stock head pipe?

Thanks!
-Bill


I have not had the pipe noise tested but it is VERY loud, not a drama over in the mountains of Thailand but I suspect the US noise police will be on your arse pretty quickly.
This is with the standard header pipe.

  • bstanton

Posted January 21, 2008 - 08:44 PM

#20

What is the namef the radiator braces you use?

Thx




 
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