   Home > Dual Sport > Suzuki DR-Z4S/SM Parts > Yoshimura RS12 Slip On Exhaust If a Yoshimura Race Series full system is not what you're looking for, the Yoshimura RS12 slip-on will pack plenty of performance on the DR-Z4S without compromising 50 state legality. The RS-12 Enduro Series slip-on provides great performance 4.1% in hp @8,000rpm and 2% increase of torque @4,800rpm with spark arrestor installed. This slip-on includes their installed USFS approved spark arrestor, SA-19-K, to make is easier to roll right out to your favorite off-road riding area. A custom stainless Yoshimura heat shield for the stock header pipe is included. Yoshimura's RS-12 is proudly designed, developed and manufactured in Chino, California. Yoshimura Part # 116612S520 Fitment: 2025+ Suzuki DRZ4SM / DRZ4S Standard Features: Weights: Sound Levels: (Using J2825 standards) with installed spark arrestor. 2000 rpm Stock: 74.4 dB RS-12: 86.0 dB 5000 rpm Stock: 84.4 dB RS-12: 89.3 dB Spark Arrestors / Sound Inserts: Yoshimura includes their SA-19-K spark arrestor with the exhaust system. They also offer several sound insert kits to reduce the sound level. These kits include a low-Volume Insert Tube, End-cap collar and set screw. Very easy to install. They currently offer a couple different kits, each reducing the sound by different amounts.... ** Available direct through Yoshimura Video Overviews: (from Yoshimura's YouTube) ** IN STOCK - Very limited supply. Usually leaves our warehouse in 1-3 business days. SHIPPING NOTE: We can only ship this product to the Continental US, and therefore cannot ship to Alaska, Hawaii or Canada. Additionally we cannot ship to California because of CARB regulations. If you are from any of these locations and order one, it will have to be removed from the order. |
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