About Rossier Engineering:
Rossier Engineering has been modifying ATV's and motorcycles since they first opened their doors in 1990. Since then they have logged many hours and won many races. Rossier is also more than an exhaust manufacturer. They offer engine packages, cams, pistons, as well as cylinder head porting. Rossier is also very conscious of sound issues in today's riding environment. The 450R exhaust has an optional supertrapp end cap that claims to significantly reduce noise levels with very little loss of power (there will be a future review of this product) Now on to the good stuff!

Manufacturer's description:
RE exhausts feature brushed stainless steel head and mid pipes so they won't corrode or rust. No shortcuts here - we did it right. The canister is brushed aluminum with a machined turn-down end to help quiet things down a few decibels. When combined with an aftermarket filter, proper jetting and cam, our TRX450 gained 9.0 HP at the rear wheel! We tried many pipes and found you can only achieve 42.5 HP peak with the stock cam - the HRC™ or Rossier cam will give you the rest of the power.

Quality and Install:
The quality of the RE exhaust is second to none. This is an extremely well built piece. The welds are perfect and the mounts are extremely beefy. Installation was simple and everything went together without any unwanted drama! The length of the pips is also worth noting. The Rossier is by no means a "shortie" but it does have a nice compact can that sits well behind the rear grab bar and out of harms way.

Performance:
Well this is the part everyone wants to hear. Does the Rossier live up to its reputation? I am pleased to say YES. There are some pipes that provide a ton of top and others that are designed solely to give a huge hit on the bottom.  Rossier's philosophy is to have a wide useable power spread over the entire RPM range. This pipe accomplishes that in spades. The power comes on instantly and pulls hard through the entire RPM range. This pipe also has the strongest mid range pull of any exhaust I have ridden. The way the power comes on through this area is phenomenal. The bike just feels as if it wants to pull your arms off Overall this is the best performing exhaust system I have ridden.

Conclusion:
With the Rossier's competitive price, outstanding quality, and stellar performance its really hard to say anything bad. Couple this with Rossier's great customer service and its easy to see why the ROSSIER exhaust system gets a 10/10