Im new here and I would like to have your opinions on which exhaust would make the most power
for the yfz 450.I cant seem to find a web site that will give hp numbers for the curtis sparks exhaust but I know its a pretty good exhaust along with the hmf.Any other suggestions would be nice.

 

Anybody suggestions would be nice!

 

curtis

 

you should check out ct racing's pipe for the yfz. Their kit gives the yfz alot of power.just go to ctracing.com

 

Pulse charger has the widest power from bottom to top. Ct is one of the best for drag I have heard same with sparks really depends on what you are doing with the quad. Do a search there are tons of these questions all ready talked about.

 

I have a Yfz with a 450 kit on it with a Sparks full exaust. Its producing around 55 horspower and im running in a drag about 70mph. Sparks is coming out with a 490cc kit. That kit will help you get the speed and power you want. If you want just a pipe Sparks is still the one to get. When you get an exaust make sure you get a jetting kit and a pro design or KNN air filter.

 

curtis sparks...

 

 

I have the Curtis Sparks exhaust on my quad and i love it...It gives good gains everywhere and just is awsome....I was looking at the HMF to when i was buying and i found that the Curtis Sparks was better and also quiter than the HMF....So in all get Sparks

 

Is the ESR pipe any good for the YFZ, I know it's good for the 250R.