Image 1 of 24
Image 2 of 24
Image 3 of 24
Image 4 of 24
Image 5 of 24
Image 6 of 24
Image 7 of 24
Image 8 of 24
Image 9 of 24
Image 10 of 24
Image 11 of 24
Image 12 of 24
Image 13 of 24
Image 14 of 24
Image 15 of 24
Image 16 of 24
Image 17 of 24
Image 18 of 24
Image 19 of 24
Image 20 of 24
Image 21 of 24
Image 22 of 24
Image 23 of 24
Image 24 of 24
Yamaha YZ250F Yoshimura RS4 Full Exhaust System 07 - 12
Fits Years: 07 - 12
New never been ran but ex display - may have a few very light marks on the body of silencer but overall new condition. On rear of exhaust very small dent by badge - please see photos.
Getting the most out of an engine is what the engineers at Yoshimura R&D do best, and they’ve wasted no time in developing a new version of their race-proven RS-4 exhaust system to maximize the performance of the 2011 Yamaha YZ250F.
This bike’s engine was redesigned to make more power through the low and mid range, while maintaining the top-end rush that has made the bike so popular among motocross racers.
By adding a Yoshimura RS-4 full system, riders will feel a significant boost in power and torque all the way from idle to redline.
The RS-4 is Yoshimura’s most advanced off-road exhaust system yet. The compact RS-4 muffler utilizes a duplex chamber design to maximize flow while offering excellent noise reduction.
The end result is a lightweight muffler that will lower sound emissions while increasing performance. RS-4 systems can be tuned to match whatever noise restrictions you might face through interchangeable sound inserts, which range from the USFS approved spark-arrested insert to the AMA pro racing legal insert.
All RS-4 exhausts are manufactured from the highest quality lightweight materials, and come in a variety of finishes.
Stainless Steel/Aluminum Full System
P/N: 2310523
Fits Years: 07 - 12
New never been ran but ex display - may have a few very light marks on the body of silencer but overall new condition. On rear of exhaust very small dent by badge - please see photos.
Getting the most out of an engine is what the engineers at Yoshimura R&D do best, and they’ve wasted no time in developing a new version of their race-proven RS-4 exhaust system to maximize the performance of the 2011 Yamaha YZ250F.
This bike’s engine was redesigned to make more power through the low and mid range, while maintaining the top-end rush that has made the bike so popular among motocross racers.
By adding a Yoshimura RS-4 full system, riders will feel a significant boost in power and torque all the way from idle to redline.
The RS-4 is Yoshimura’s most advanced off-road exhaust system yet. The compact RS-4 muffler utilizes a duplex chamber design to maximize flow while offering excellent noise reduction.
The end result is a lightweight muffler that will lower sound emissions while increasing performance. RS-4 systems can be tuned to match whatever noise restrictions you might face through interchangeable sound inserts, which range from the USFS approved spark-arrested insert to the AMA pro racing legal insert.
All RS-4 exhausts are manufactured from the highest quality lightweight materials, and come in a variety of finishes.
Stainless Steel/Aluminum Full System
P/N: 2310523