Yoshimura RS-12 Signature Series Full Exhaust System | KTM and Husqvarna | Stainless Header with Aluminum Canister

The Yoshimura RS-12 Signature Series Full Exhaust System is a complete header-and-muffler replacement for KTM and Husqvarna machines, built with a stainless steel header, an aluminum canister and a carbon fiber end cap.

Signature Series is Yoshimura's top tier. The distinction is construction and finish rather than a different design — the same system, built to the standard that goes on the race bikes instead of the cost-reduced version of it.

KTM and Husqvarna share an engine platform, which is why one system covers both. And as with any four-stroke off-road machine, the full system is the change worth making over a slip-on: the header shapes where in the rev range the power lands, which on a dirt bike matters as much as the peak figure.

• Complete system — stainless steel header and muffler
• Aluminum canister with carbon fiber end cap
• Signature Series construction and finish
• Compact RS-12 design centralises mass compared with earlier Yoshimura canisters
• Repackable core — serviceable rather than disposable
• Yoshimura part number 961-4416
• Made in the USA by Yoshimura R&D of America

Fits KTM and Husqvarna applications. Confirm your exact model and year against Yoshimura's application chart before ordering. Check the sound and spark arrester requirements for the land you ride — a separate Yoshimura spark arrester insert is required for USFS and BLM areas.