Best/most unrestrictive YZ exhaust


7 replies to this topic
  • Snrub0800

Posted May 25, 2016 - 10:42 PM

#1

WR owner comin over to y'all YZ guys. My bike desperately needs a new exhaust, what exhaust(including header) would be best for my 09 WR450?

  • cowboyona426

Posted May 26, 2016 - 05:49 AM

#2

I ran a Dr D on my 06 YZ450F, no complaints.



  • jamiehughes

Posted May 26, 2016 - 06:15 AM

#3

i have the FMF factory 4.1 exhaust with the titanium megabomb header pipe on my 07 YZ450F and i love it...it really woke this thing up, i think i still don't have my jetting 100% but the bike flat out rips..of course i already put a little dent in the mega bomb part of the pipe tho, the flared out part of the pipe is pretty good sized on this application.  i really like it tho.



  • grayracer513

Posted May 26, 2016 - 06:51 AM

#4

On a value basis alone, I would take the DRD full stainless system with the optional spark arrestor (removable).  Great all around exhaust at a reasonable price.

 

None of the YZ450F OEM pipes are significantly restrictive except the '08-'09 model "shorty" muffler setup.  That pipe is junk, and always was, thus the two years and out life cycle.



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

Posted May 26, 2016 - 08:10 AM

#5

On a value basis alone, I would take the DRD full stainless system with the optional spark arrestor (removable).  Great all around exhaust at a reasonable price.

 

None of the YZ450F OEM pipes are significantly restrictive except the '08-'09 model "shorty" muffler setup.  That pipe is junk, and always was, thus the two years and out life cycle.

 

So if I throw my 09 YZ450F stock muffler up on eBay it's not gonna fetch very many pennies?? :-)



  • grayracer513

Posted May 26, 2016 - 08:38 AM

#6

Some people lust after them for their look.  Usually, they have an epiphany right after their first ride with one, but that will be their problem, not yours.



  • racer8

Posted May 26, 2016 - 06:44 PM

#7

I put an 06 complete OEM System on my 09 and it helped...
Not sure how it compares to after market .

Edited by racer8, May 27, 2016 - 03:40 PM.


  • grayracer513

Posted May 27, 2016 - 06:48 AM

#8

The '06 stock system is pretty good, and is within 1.5 HP of the best peak power systems available.  The DRD improves on the low and mid range a little, and it's lighter, but otherwise the stock '06 is a good one.







Related Content

Forums
Photo

Megabomb Fitment by 288yz450


Dirt Bike   Make / Model Specific   Yamaha   YZ 400/426/450
  • 1 reply
Forums
Photo

2016 YZ450 by CaptainKnobby


Dirt Bike   Dirt Bike Technical Forums   Suspension
  • Hot  59 replies
Forums
Photo

YZ450F 03 Sparks driving me crazy by SirAttard


Dirt Bike   Make / Model Specific   Yamaha   YZ 400/426/450
  • 5 replies
Forums
Photo

yz250x vs 450 4t comparisons (preferably desert riding) needed by JakeNorthrupYZ450F


Dirt Bike   Make / Model Specific   Yamaha   Yamaha 2-Stroke
  • 9 replies
Forums
Photo

Michigan Motocross Tires by 288yz450


Dirt Bike   Dirt Bike Regional Discussion   North
  • 1 reply
 
x

Join Our Community!

Even if you don't want to post, registered members get access to tools that make finding & following the good stuff easier.

If you enjoyed reading about "" here in the ThumperTalk archive, you'll LOVE our community. Come join ThumperTalk today!

The views and opinions expressed on this page are strictly those of the author, and have not been reviewed or approved by ThumperTalk.