Aaron (North Carolina )
Easy to install and a very noticeable difference with the bottom end power. Not having a heat shield I thought might pose a problem, however I haven't even noticed that it's gone until I get off the bike. Best upgrade so far for the money.
Geary (Scottsdale )
Good sound and easy install. Definitely added more punch to my '07 TRX450R.
Trevor (Chula Vista )
This is probably my favorite purchase I have ever made when it comes to dirtbikes. Absolutely beautiful and performs like a beast.
Csteen (West hills )
Wish the exhaust spark arrester was louder.
Kurt (Big Lake )
I purchased the Q4 looking to free up the air flow for a bit more power without a lot of extra noise. It is perfect for just that task. The bike has more power and the sound was nice with good tones. It fit perfect! Great product FMF!
Paul (Traverse city )
I installed on a 1972 Ossa Pioneer 2 stroke. Welded onto the original exhaust so it worked out pretty good.