Hello, I've finally decided to get into the 450 game. I'm selling the racing quad I have now, and I'm going to purchase a 2007 Yamaha Yfz 450 SE. I'm wanting to get reviews and opinions on what you guys think the Best Exhaust system is. I'm looking for more horsepower, speed, torque etc.

 

I like Curtis Sparks exhaust. If noise is a problem, it wouldn't be a good choice because they are loud but sound good.

 

LSR has a great system that make great power and is race legal (db) Lonestar

 

I'm would also like it to look good with the bike. It's an 07 Grey/Maroon Yfz. I'd like it to be retarded loud as well. I've always loved the super loud deep tone. Love it when you hit the throttle and it just stops your heart right in your chest. I've always ran Yoshimura, and Big Gun on all of the bikes I've owned, but now that I'm with the 450, I'm looking to also get amazing performance out of it.

 

You don't need to have big noise to make big power. If you ever plan on racing it or taking it to most public riding venues that big noise is a no go. Personally, I have had the best results with HMF on the YFZ, and the newer models make great hp without the 105dB earbleeding sound. Dr D also makes very good power for little noise and has been a YFZ favorite since the beginning.

 

HMF has the pipes that you can select your color option correct? I don't want a pipe that is too quiet, but I know that HMF does have good sound to it. Down here everyone runs FMF, Yoshimura, and HMF. Rarely do I see any other brands. To be honest I'm shocked that there are so many of them out there. What's the rep on the Yoshimura Tri Oval exhaust?