stock 450 silencer


1 reply to this topic
  • clutchinoregon

Posted May 30, 2005 - 08:57 PM

#1

i was sitting here wondering how a stock 450 silencer stacks up to some of the aftermarket jobs....do you really gain that much by switching them around? what about jetting for a new silencer? can the stock silencer be modified? ( noise isnt and never was a issue for me ) one more note, after a long run in 3rd, 4th gear, on deceleration, there are a few pops..... would that be right, or does the bike need some diff. jetting? im real new to the 4 stroke thing, any advise is always helpfull!!!

Visit the ThumperTalk Store for the lowest prices on motorcycle / ATV parts and accessories - Guaranteed
  • grayracer513

Posted May 31, 2005 - 08:41 AM

#2

The stock YZ450 exhaust system is a pretty good piece of work, really, especially compared with the system on the RMZ450. It's pretty light, and a good aftermarket pipe will only net you 2 hp at the most at peak, and most only 1 or so.

What they can do, though is to change the power curve around some. The FMF system I have increases the power on either side of peak as much if not more than the peak itself. The effect is that the power comes on harder, sooner, and pulls out farther in a very linear fashion. It also lacks the blip in the power curve the stock '03 had that people mistook for a "hit".





Related Content

Forums
Photo

Chubby dad, looking at bikes , First trip to the orange/black forum ! by Slow_ride


Dirt Bike   Make / Model Specific   KTM   250-530 EXC/MXC/SXC/XC-W/XCR-W (4-Strokes)
  • Hot  28 replies
Forums
Photo

Is it worth it? (Cam and High compression piston) by macgi77


Dirt Bike   Make / Model Specific   Honda   CRF 150/230 F/L
  • Hot  36 replies
Reviews

Yamaha YZ450F 2017 by Chris.GVS


Yamaha YZ450F 2017
  • - - - - -
  • 0 reviews
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
 
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.