Yoshimura RS-12 Stainless Full System with Carbon End Cap for Triumph TF450 (2025 -)

The 2025 Triumph TF 450 is here and Yoshimura has Yoshimura's RS-12 Signature Series Full System ready to tackle the job of enhancing performance on this new 450 MX machine.

Yoshimura enlisted a 304 stainless steel/aluminium/carbon fibre version of the Yoshimura RS-12 to provide more horsepower and torque to the TF 450 and man did it deliver!

The RS-12 delivers a whopping 11.3% increase in horsepower @5000 rpm and a staggering 10.8% increase in torque @5000 rpm. Just where this new 450 wants more! Creating power - at Yoshimura that's what they do.

Some of the features of the new RS-12 include:

Carbon Faced Machined Joint

RS-12's Carbon Faced Machined Joint no longer requires the use of anti-seize. This is accomplished by impregnating the surface of the stainless steel joint with carbon atoms. The result is a reduction in wear over the life of the joint by reducing friction.

Header Resonator

The header resonator isn't just there for looks, it allows maximized power across the spectrum, while enhancing rider connectivity. But it does look cool!

The new RS-12 for the 2025 TF450 comes with an INS-30-K sound insert installed. This insert not only produces an ear pleasing exhaust note, it also makes the best power for the new Triumph.

Signature Series Exhaust System

The Signature Series by Yoshimura - an offering of exhaust systems that a dealer can install with confidence. The Signature Series line up is the answer for today's dealer who is faced with a challenging marketplace. The applications for the Signature Series line cover the entire powersports spectrum, including many of Yoshimura's off-road applications. Every Yoshimura Championship Winning Motocross exhaust system and nearly all Yoshimura ATV/Side-by-Side applications are members of the Signature Series Family.

Weights:

• Stock system: 3.95 kg
• Yoshimura RS-12: 4.45 kg

Sound levels:

(Using 2 Meter Max/J2825 standards with supplied INS-30-K insert)

2000 rpm (J2825)

• Stock: 85.0dB
• RS-12 full system: 87.5dB

5000 rpm (J2825)

• Stock: 93.9dB
• RS-12 full system: 97.7dB

REV: (2 Meter Max)

• Stock: 112.0dB
• RS-12 full system: 113.4dB