YOSHIMURA RS-4 MUFFLER GAS GAS EX 250 F 2021-2023

YOSHIMURA RS-4 MUFFLER

Code: 264622D320

New from KTM and Husqvarna for 2019 are the revamped 250 SX-F / FC250 and SX-F 350 / FC350.

Both the 250 and 350 have good horsepower and torque in stock form, but nonetheless we've gone to work on improving power in every rpm range on these twin race bikes and the gains we've been able to make with our RS-4 are quite impressive.

We ended up with the 250 with a 6.6% higher peak HP and a big 14.2% peak torque gain.

The 350 was even more impressive with a 10.2% peak HP gain and a 7% peak torque gain.

The workhorse for much of that performance is our RS-4 muffler.

With its Duplex Poly-resonant front chamber to add overall volume and the special stepped two-stage baffle configuration that reduces sound without limiting performance.

These Austrian 250 and 350 race bikes are ready for the podium now! Spark arrestor available separately.

Characteristics

Pentagonal shaped sleeve

The front muffler cap functions as a poly-resonant chamber which helps reduce noise

Two-stage stepped baffle

Carbon fiber case back

Exhaust terminal in stainless steel

Repack kits, optional inserts and spark arrestors are available for all models

Proudly made in the USA.

NOTE: Not approved for road use.

NB: The photos are purely indicative to demonstrate the quality of the product

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