VANCE & HINES - Backlash 450 Mufflers - Touring 17+ Black

Accentuate the long, low, and aggressive profile of your machine with the Vance & Hines Backlash 450 muffler pair. Specifically developed to enhance 2017-2026 Harley-Davidson Touring models with Milwaukee-Eight (M8) engines, these Slip-ons offer a unique visual integration never before seen on the market.

The "Backslash" Design: Perfectly aligned with your saddlebags The great strength of the Backlash 450 lies in their exclusive beveled rear cut. Unlike classic tips, the cutting angle of these mufflers is calculated to align perfectly and sit flush with the rear cutout of the Stretched Saddlebags typical of "Special" or "S" range models. The result? A profiled, ultra-clean, and aerodynamic custom look that gives the impression that the exhaust is one with the bodywork.

LS275 Baffle: A deep, heavy growl Beneath their massive 4.5-inch (11.4 cm) diameter rotationally formed mild steel structure, the Backlash conceals advanced acoustic engineering. They integrate the brand new LS275 internal baffle. Specifically designed to unleash the breathing potential of the Milwaukee-Eight engine, it delivers a low, rich, and profoundly heavy growl on acceleration, without any compromise on style.

Stealth Matte Black Ceramic Finish To perfectly match Dark style builds, these mufflers receive a high-temperature matte black ceramic coating. This premium treatment ensures excellent resistance to thermal aggressions and prevents any degradation or discoloration over time.

🔧 Important Technical Advice – Euro 5 Compatibility (Models from 2020/2021): European versions of the Touring M8 (Euro 5 standard) have secondary downstream oxygen sensors. To install these American-designed mufflers without triggering an error code or dashboard warning light, the use of a management unit is strongly recommended to electronically deactivate these secondary sensors.

Technical specifications:

• General Compatibility: Harley-Davidson Touring M8 models (Road Glide, Street Glide, Road King, Electra Glide) from 2017 to 2026. (Excludes 2025 FLHXU / Ultra model. Not suitable for Trike models).

• Aesthetic optimization: Ideal for models with stretched saddlebags (Stretched Bags of Special, ST and S models).

• Dimensions: XXL 4-1/2" (11.4 cm) diameter round muffler bodies.

• Internal Technology: Patent-pending LS275 high-performance baffles (powerful and raw sound).

• Finish: Matte Black ceramic surface treatment.

• Packaging: Sold as a pair (left and right sides included with mounting hardware and instructions).

• Origin: Made in the USA.

🛠️ Compatibility: These mufflers mount in place of the original components on your stock headers or on Vance & Hines performance headers. If in doubt, our team is at your disposal.