I'm looking for new exhaust for my 2004 YFZ 450. I want something that sounds and preforms good but not looking to spend a fortune. Loud is good, of course. Can just be a slip on too, unless I can get the system for the right price. I was just wondering what other people have used and liked.

 

Loud isn't "good" anymore. Plenty of quieter systems that make great power. DRD has always been highly rated for the YFZ. I have run HMF, FMF, and LEXX on mine. For the money, Rocky Mountains Lexx slip on was a great value that performed well.