S&S - Grand National 4" Slip-On Muffler - Street XG750 15-20 - Black

Transform the style and dynamics of your machine with the S&S Grand National 4" Slip-On Muffler. Specifically developed for 2015-2020 Harley-Davidson Street 750 (XG750) models, this high-end muffler provides a sporty and aggressive look while unleashing the urban temperament of the Revolution X engine.

Massive and Quantifiable Performance Gains Don't settle for a simple aesthetic change. The Grand National muffler radically optimizes exhaust gas flow thanks to its perforated stainless steel baffle coupled with high-performance internal packing. When combined with a high-performance air filter (like the S&S Stealth Air Cleaner kit), this system unlocks the full potential of the 750cc engine, delivering up to 10.5% more power and a massive gain of 19.8% more torque.

Dark Ceramic Finish & Flat Track Design Directly inspired by the brand's racing motorcycles, this muffler features a generous 4-inch diameter that instantly transforms the Street 750's lines. It benefits from a high-quality high-temperature matte black ceramic finish, specifically calibrated to perfectly match and blend with the original exhaust header's color on your motorcycle.

Rich Sound and Adjustable Back Pressure Gone is the discreet original whistling: make way for a rich, deep, and powerful sound that asserts the mechanical character of your ride. For total versatility, it includes a removable sound reducer (dB killer). This insert allows you to adjust the sound intensity and engine back pressure according to your preferences, while remaining compliant with SAE J2825 sound level requirements.

Technical Specifications:

• Compatibility: Harley-Davidson Street 750 (XG750) models from 2015 to 2020. Note: Not compatible with Street Rod XG750A models.

• Premium Finish: Ultra-resistant black ceramic coating, perfectly matching the original line.

• Dimensions: Muffler body with 4" outer diameter for a massive look and optimal sound volume.

• Engine Optimization: Up to +10.5% HP and +19.8% Nm of torque (when paired with the S&S Stealth filter).

• Internal Design: Perforated stainless steel baffle and high-performance thermal repacking kit.

• Modularity: Equipped with a removable dB killer (sound reducer included).

• Ready to Install: Comes complete with all necessary hardware for direct installation (Slip-On).

• Origin: Made in the USA.

🛠️ Compatibility: To avoid any compatibility errors, please use our vehicle search. If in doubt, do not hesitate to contact us to be sure.