HUSQVARNA 401 (2018-2023) SLIP-ON EXHAUST SYSTEM

Kelpi Shorty & Flanker Slip-On Exhaust System – Svartpilen/Vitpilen 401 (2018+)

Shed the heavy, restrictive factory exhaust on your Svartpilen/Vitpilen 401 and replace it with a lightweight, free-flowing slip-on that transforms both sound and performance.

The Shorty Slip-On delivers a balanced, deep tone that’s present without being obnoxious; easy to fit, easy to live with, and easy on the eyes. For those wanting an even sharper, race-inspired exhaust note, the Flanker Slip-On is a carbon-tipped short pipe with a stainless mesh grill, designed to enhance mid-range and top-end power while producing a deeper, raspier tone.

Performance & Sound

Both systems provide improved exhaust flow, delivering better mid-range torque and throttle response while reducing weight for a sharper ride. The Shorty offers a classic reverse-cone tone, while the Flanker’s five-layer internals produce a distinctively aggressive exhaust note.

Materials & Construction

• Shorty Slip-On: Full TIG-welded 304 stainless steel with a brushed stainless or black ceramic finish.

• Flanker Slip-On: Features Kelpi’s 5-layer internal construction; perforated tubing, steel mesh, fibreglass, and cotton gauze, wrapped in a vapour-blasted stainless shell with a carbon-fibre end cap.

• Weight Reduction: Significantly lighter than stock, improving the bike’s power-to-weight ratio.

Fitment & Installation

• Direct fit for 2018-2023 Svartpilen 401 & Vitpilen 401 models.

• Quick install fits up in under 10 minutes using basic garage tools.

• Kit includes:

  • Stainless steel link pipe

  • Springs, fasteners, graphite exhaust gasket, and muffler

  • Pre-welded rear mounting bracket for stability

Baffles & Customization

• Shorty: Includes a removable baffle insert to fine-tune volume and tone.

• Flanker: Designed for maximum flow with a more aggressive note, no baffle included.

Tuning & Compatibility

Both systems are designed to work with the stock ECU, no remap required. For riders looking for maximum power gains, an ECU flash or airbox modifications can further optimise performance.

Order & Support

If you have any questions about fitment or custom options, send us an email, we’re happy to help.