Yoshimura RS-4 Slip-On Kit – Aluminum Silencer, Carbon Cap – GASGAS EX 350F (2021)

Description

Brand new from KTM and Husqvarna for 2019 are re-vamped 250 SX-F / FC250 and SX-F 350 / FC350. The 250 and 350 make good HP and torque stock, but Yoshimura went to work to attain improved and impressive power in every RPM range on these twin race machines.
Yoshimura wound up with the 250 peak HP at 6.6% and a big gain of peak torque of 14.2%. The 350 was even more impressive with a peak HP gain of 10.2% and peak torque gain of 7%. The work horse for much of this performance is Yoshimura’s RS-4 silencer.
A Polyresonant Duplex front chamber adds overall volume, and a stepped two-stage baffle configuration reduces sound without restricting performance. Spark arrestor available separately.
This exhaust is designed and intended for closed course competition use only, and is labelled as such, it is neither designed or intended for use on public roads or land.

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