Yoshimura 219220S320 2018-2026 Suzuki RM-Z450 RS-12 Full Exhaust — -1.1 lbs Weight Reduction

Yoshimura — Factory-Level Power Curve, Uncork the True Potential of the RM-Z450

The Suzuki RM-Z450 is a holeshot machine, but the stock exhaust system is notoriously heavy and restrictive, creating a "flat" feeling in the upper RPM range. For riders looking to compete at the highest level, shedding weight and improving exhaust scavenging is essential. The Yoshimura RS-12 Full System was engineered over 24 months of factory-level race testing to transform the Suzuki RM-Z450 powerband, delivering a more aggressive mid-to-top end pull while cutting over a pound of unnecessary weight from the chassis.

Every detail of the RS-12 is built with "Factory Quality" standards. The asymmetrical muffler profile maximizes internal volume for better sound management and increased power, while providing superior clearance for the rear brake caliper and tire. Utilizing precision-machined joints, this system offers a perfect 360-degree seal that prevents power loss and increases the lifespan of the exhaust. The tapered inlet design allows the entire system to be pushed forward, significantly improving weight centralization and making the RM-Z450 feel lighter and more responsive in the air and through corners.

• Significant Weight Savings: Weighs only 8.4 lbs compared to the 9.5 lb stock system for improved handling.
• Factory Quality Machined Joints: Precision-fit joints provide a 360-degree seal for maximum durability and performance.
• Asymmetrical RS-12 Profile: Maximizes capacity for increased power while maintaining massive caliper clearance.
• PTF Insert System: Patent-pending Precision Taper Fit ring allows for quick swaps of spark arresters and inserts.
• Matte Carbon Fiber End Cap: Innovative inner-cap mount design increases durability and simplifies maintenance.
• SKU: 219220S320

Moto-House MX Pro Tip:

On the Suzuki RM-Z450, weight centralization is key to its legendary cornering. When installing the RS-12, make sure the rubber grommet on the muffler mount is in good condition and not compressed. A fresh mount ensures the exhaust can vibrate independently of the subframe, preventing stress fractures on the aluminum muffler canister during hard landings or seat bouncing.

Year	Make	Model
2018 - 2026	Suzuki	RM-Z450

FAQ Questions

Q) How much weight does this save over the stock pipe?
A) The Yoshimura RS-12 full system weighs 8.4 lbs, which is a 1.1 lb reduction compared to the 9.5 lb stock Suzuki system.

Q) Is this system compatible with the stock Suzuki engine mapping?
A) Yes, it is compatible with stock mapping. However, for the best performance, we recommend using the white (lean) or grey (rich) couplers provided with the Suzuki RM-Z450 to fine-tune the delivery to your track conditions.

Q) Can I install a spark arrester for off-road use?
A) Yes. Thanks to the PTF (Precision Taper Fit) insert ring, you can easily install a Yoshimura spark arrester (sold separately) for trail-legal riding.

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