09 450 exhaust question

2 replies to this topic
  • SM Maniac

Posted November 15, 2010 - 09:42 PM


i have the GYTR full system on my 09 450 and I noticed the stock header is bigger than the one that came with the system and I was wondering if I could make more power with factory header and jet recommendations for 700ft elevation with 3x3 air box mod


P.S. sorry for all the run on sentences i failed english in highschool

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

Posted November 15, 2010 - 10:36 PM


The stock header is large to compensate for the plugged up stock silencer, it wont give you any hp gains. Size isnt everything btw, its all about a happy medium between moving enough air(large diameter) at a fast enough speed(small diameter).

  • SM Maniac

Posted November 16, 2010 - 01:42 PM


ok thanks a ton man im pretty new to the thumpers so i wasn't too sure if it was overkill :p

Related Content


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

BIGBORE FOR YZ450F 2006? by Taattie94

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

Wilson the Blue Privateer by jetfuel

Dirt Bike   Special Interest Forums   Pro Racing
  • Hot  50 replies

2016 YZ450 by CaptainKnobby

Dirt Bike   Dirt Bike Technical Forums   Suspension
  • Hot  59 replies

Should I buy this bike? help....... by Numsa Hul

Dirt Bike   General Dirt Bike Forums   What bike should I buy?
  • * * * * *
  • 10 replies

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.