R4 exhaust has been discontinued , The R5 has been outperforming the R4 consistently!
YOU CAN NOW ORDER THE NEW R5 WITH ANTI-REVERSION HEADER FOR YFZ450R , YFZ450 CARB , Raptor700r , TRX450r and LTZ400 ( click products) Please be advised that the R5 orders have been overwhelming and we currently have a 3-4 week lead time.
However if you read all the reviews they give us on social media and the Dirtwheels magazine down below you will soon see that it is worth the wait .
Thundering through the woods
We love the Raptor at Rossier Engineering
Thunderbolt and lightning very, very frightening
Idle and reving sound ( watch full video)
Rossier Engineering to victory
LTR450 Rossiering Engineering Exhaust
Rossier Engineering Exhaust enduring 6,213 mile
Rossier Engineering Exhuast enduring 6213 mile Race
Welcome to Rossier Engineering . This company first opened it's doors in 1991. Primarily a watercraft and dirt bike performance shop, we enjoyed a great deal of success during the watercraft racing boom of the 90's. As that market declined, we noticed the popularity of the burgeoning ATV racing scene. We followed the trend, and switched our operation over to 4-stroke development, concentrating on the 450 race quad segment. After brief retirement Rossier Engineering is back stronger than ever with our top performance exhaust systems that have made us a reference in the sport . Please feel free to call with any questions- (970)-391-8675
ROSSIER ENGINEERING IS A DISTRIBUTOR FOR ALL PERFORMANCE ENGINEERED PRODUCTS
Manufacturing Facility is located in Anaheim California
3850 Big Dipper Dr , Fort Collins, Colorado 80528, United States
09:00 am – 05:00 pm