Exhaust systems: defined?
I have a little bit of an off the wall topic,
How much does a header effect the performance of a quad? I know that exhaust systems have better flow and that helps "open up" the quad, especially when the engine has been modified significantly.
The reason I ask is because I took the header and slip on off of my 400 to clean up, and I noticed that my header was the same dimensions as the stock one. I am curious if 1.) Other headers are much larger than the stock one, and 2.) if they are, will this size make a difference in performance?
I appreciate all the help.
1999 Trx440ex: SOLD
2005 Trx450R: HRC, FMF, G-Force, Cobra, Burgard
Food for thought:
*Jet kits are not upgrades
* DG accessories are nothing to brag about
*Top speed is worthless