Yoshimura - Pro Series RS-4D Exhaust System (Suzuki)
The RS-4 muffler was developed in conjunction with the Rockstar Makita Suzuki Yoshimura race team with one purpose in mind: winning championships. That goal was accomplished during the 2010 AMA Supercross and Motocross season, as Ryan Dungey and his Yoshimura powered RM-Z450 shook the motocross world by being the first rookie in the history of the sport to dominate both series. The new RS-4D builds on the technology that has made the RS-4 a force to be reckoned with on the racetrack, enhancing it's rock solid performance. By increasing the amount of open area at the exhaust outlet, the RS-4D increases airflow, resulting in smoother power delivery and increased throttle control. Preliminary testing has shown that it offers increased horsepower and torque throughout the power curve, especially in the bottom to mid RPM range.
- Full system; header and muffler included
- Ultra lightweight carbon fiber end-cap cover
- Unique dual outlet design
- Increased torque and horsepower throughout the power curve, with most gains in the bottom to mid RPM range
- Smooth power delivery allowing easier throttle control and less clutching
- Dual tip allows for more flow by increasing outlet open area when compared to single outlet designs
- Dual inserts for horsepower tuning and decible reduction
REVIEW SNAPSHOT®
by PowerReviews(based on 4 reviews)
Ratings Distribution
100%
of respondents would recommend this to a friend.
Pros
- Easy to use (4)
- Lightweight (4)
- Durable (3)
- Versatile (3)
Cons
Best Uses
- Racing (3)
- Motorsports:
- Competitive cyclist (4)
Reviewed by 4 customers
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Displaying reviews 1-4
Pros
- Durable
- Easy To Use
- Lightweight
- Versatile
Cons
Best Uses
- Off-Road
- Racing
Comments about Yoshimura - Pro Series RS-4D Exhaust System (Suzuki):
improves throttle responce greatly. made the bottom end on the '11 rmz250 that much better. the best quality out there. i will buy this and only this exhaust for a 250f.
- Motorsports:
- Competitive Rider, Mechanic, Motorcycle Enthusiast
Pros
- Durable
- Easy To Use
- Lightweight
- Versatile
Cons
Best Uses
- Off-Road
Comments about Yoshimura - Pro Series RS-4D Exhaust System (Suzuki):
RS4D, Enough said.. Much louder then stock exhaust with a deeper note, adds a punch of power down low- mid and looks super trick worth every penny!
- Motorsports:
- Competitive Rider
Pros
- Easy To Use
- Lightweight
- Power Increase
Cons
- expensive
Best Uses
- Racing
Comments about Yoshimura - Pro Series RS-4D Exhaust System (Suzuki):
Used the RS-4D on my '11 RMZ450, heaps of power thoughout the power range, mainly the bottom end, sounds wicked, have to cut a bit of the plastics behind the race number plate to fit it though.
- Motorsports:
- Casual Rider, Competitive Rider, Mechanic, Motorcycle Enthusiast
Pros
- Durable
- Easy To Use
- Lightweight
- Tough
- Versatile
Cons
Best Uses
- Racing
Comments about Yoshimura - Pro Series RS-4D Exhaust System (Suzuki):
bought it for my 2011 rmz250
dual outlet looks sick, good power increase, sounds good, even better throttle response
best pipe ive ever used
- Motorsports:
- Competitive Rider
Displaying reviews 1-4
