Yoshimura DR-Z4 S/Sm 25-26 RS-12 Stainless Slip-On, W/ Stainless Muffler

After an impressive run of over two decades, 2025 brings an all-new Suzuki DR-Z4S/SM.

If a Race Series full system is not what you're looking for, we developed our RS-12 slip-on to pack 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 our 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 is included.

Yoshimura's RS-12 is proudly designed, developed and manufactured in Chino, California.

Weights:

Stock slip-on: 13.6 lbs.

Yoshimura RS-12 slip-on: 9.2 lbs.

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

Sound Insert/Spark Arrester Options

Sound Level	Volume Insert	Spark Arrestor	Included
	INS-32-K		No
		SA-19-K	Yes
		SA-20-K	No
	INS-34-K		No