Horsepower & Eight Hours of Hurt

Twenty-percent increased horsepower from a slip-on? And it survived eight hours of carnage!

Let’s cut straight to it. What the engineers at Yoshimura have done with the new RS-12 exhaust range isn’t just cosmetic; it’s revolutionary. When it comes to the Austrian off-road platform, Yoshimura’s RS-12 slip-on muffler delivers genuine, measurable performance gains out of the box. If you’re the owner of a 350-500cc four-stroke enduro model – whether KTM or Husqvarna – you can expect a 20% max horsepower increase and 8.2% torque boost from the can alone.

A 20% increase – let that sink in… We’re not talking about the usual “marginal gains” marketing speak here. That’s the kind of improvement you’d normally expect with ECU tuning and possibly some light witchcraft! The RS-12 also provides generous brake calliper clearance, which might not sound exciting until you’ve dealt with an exhaust that interferes with your rear brake at the worst possible moment. But clever designs and big numbers on a dyno sheet is one thing. Surviving the real world is another story entirely.

The Powersport Central (PSC) crew just backed up everything we’ve been saying about Austrian muscle and USA pipe wizardry! You’ve probably seen the photos floating around of the Powersport Central mob absolutely cooked after the recent Transmoto 8-Hour at Coffs Harbour. Covered in dust, getting beer tipped over their helmets, grinning from ear to ear. Second place in the Mixed Team category, thank you very much.

That Husqvarna FE501 they flogged around the Ulong property for eight straight hours? Fitted with a Yoshimura RS-12 Stainless Slip-On with Aluminium Muffler. Look, anyone who’s done a full day’s riding in the Australian bush knows that exhausts cop an absolute hiding. And the Transmoto 8-Hour at Coffs Harbour isn’t exactly a Sunday cruise with a mix of fast-flowing trail, epic grasstrack, rocks and roots amongst thick forests; there’s nowhere to hide if your equipment isn’t up to scratch. The Yoshimura RS-12 Enduro Series is built with this exact brand of abuse in mind.

The bottom line is that the PSC crew have gone and done what we always like to see; they’ve put their gear where it counts and proved it works. Eight hours around Coffs Harbour is no joke, and walking away with a podium finish and a bike that’s still running strong says more than any press release ever could.

If you’re serious about the KTM and Husqvarna 350-500 off-road platform and you want an exhaust that delivers genuine, measurable performance gains without compromising trail legality, the Yoshimura RS-12 slip-on is worth a proper look. Not because someone told you it’s good – because a bunch of lunatics just proved it across eight hours of Coffs Harbour carnage!

KTM / HUSQVARNA 350-500 EXC-F RS-12 Stainless Slip-On Exhaust with Aluminium Muffler

Key Features & Benefits

• Massive Power Gains: Max horsepower increase of 20% and max torque increase of 8.2%. Experience dramatic improvements in acceleration and overall engine performance.
• Spark Arrestor Installed: Maintain regulatory compliance with the spark arrestor while still enjoying giant power gains.
• PTF Insert System: The Precision Taper Fit (PTF) insert system makes swapping the sound insert or spark arrestor straightforward. This allows for rapid adjustments on the go, making it perfect for trail and off-road riding.
• Generous Brake Calliper Clearance: The RS-12 provides ample clearance for the brake calliper, ensuring no interference with braking components.

Yoshimura exhaust pipes, hard parts and electrical components are proudly distributed by A1 Accessory Imports, Australia’s House of Powersports. To find an exhaust pipe suited to your motorcycle visit www.houseofpowersports.com.au/yoshimura/model-search