Yoshimura Honda CRF300L 21-26 Slip On RS-4 Muffler
Yoshimura Slip On RS-4 Muffler
The Yoshimura RS-4 slip on exhaust is a unique design with predicated power and a quiet earthy exhaust note that speaks volumes for performance. This RS-4 features all the benefits of our original RS-4 muffler, but with a unique turned-out end-cap, designed to direct exhaust heat and gases away from the bike's components. To top-it-off, we embossed our Yoshimura's 347 logo in the carbon for a clean look. With all its benefits in mind, the RS-4 is an obvious choice for your bike.
The RS-4 is pentagonal shaped muffler that features a carbon fiber cone end cap, two staged stepped baffle and striking good looks. The RS-4 muffler features a new front cap design that functions as a polyresonant chamber. This design makes for a quieter muffler with improved mid to top end power.
RS-4 slip on exhaust includes an RS-4 muffler, all installation hardware and step-by-step instructions.
FEATURES
- Pentagonal-shaped sleeve.
- Front muffler cap functions as a polyresonant chamber which helps reduce noise.
- Two-stage stepped baffle.
- Carbon fiber end-cap.
- Stainless steel tail-pipe.
Shipping
All orders received by 2pm weekdays are dispatched the same day when purchasing in-stock items.
Returns
If you receive any items that you are unhappy with for any reason, simply return to us within 60 days in the condition that you received them and we will happily offer a store credit or refund.
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Four payments of $274.99
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Delivery — Flat rate $10 standard shipping Australia wide
Yoshimura Slip On RS-4 Muffler
The Yoshimura RS-4 slip on exhaust is a unique design with predicated power and a quiet earthy exhaust note that speaks volumes for performance. This RS-4 features all the benefits of our original RS-4 muffler, but with a unique turned-out end-cap, designed to direct exhaust heat and gases away from the bike's components. To top-it-off, we embossed our Yoshimura's 347 logo in the carbon for a clean look. With all its benefits in mind, the RS-4 is an obvious choice for your bike.
The RS-4 is pentagonal shaped muffler that features a carbon fiber cone end cap, two staged stepped baffle and striking good looks. The RS-4 muffler features a new front cap design that functions as a polyresonant chamber. This design makes for a quieter muffler with improved mid to top end power.
RS-4 slip on exhaust includes an RS-4 muffler, all installation hardware and step-by-step instructions.
FEATURES
- Pentagonal-shaped sleeve.
- Front muffler cap functions as a polyresonant chamber which helps reduce noise.
- Two-stage stepped baffle.
- Carbon fiber end-cap.
- Stainless steel tail-pipe.
Shipping
All orders received by 2pm weekdays are dispatched the same day when purchasing in-stock items.
Returns
If you receive any items that you are unhappy with for any reason, simply return to us within 60 days in the condition that you received them and we will happily offer a store credit or refund.

