SP Concepts Street Pro 4.5" Slip-On Mufflers for 2017-2026 Harley Touring - Torched Chrome

Product Description

SP Concepts Street Pro 4.5" Slip-On Mufflers - 2017-2026 M8 Bagger

Unleash that deep Harley growl without the hassle of a full exhaust swap—the SP Concepts Street Pro 4.5" Slip-Ons deliver instant sound and style transformation for your M8 Bagger. Hand TIG-welded at SP Concepts' Lake Elsinore, California facility, these slip-ons feature a high-flow perforated baffle specifically tuned to give your Milwaukee-Eight that aggressive, authoritative tone it deserves. The 4.5" diameter body provides maximum sound depth while maintaining excellent ground clearance for low riders and performance baggers. Best of all, these slip-ons work with your stock catalyst and require no tuning—just bolt them on and ride. Whether you're commuting through the city or carving up backroads, the Street Pro slip-ons transform your bike's exhaust note from timid to commanding while maintaining civilized cruising volumes and full EPA compliance.

Fitment

• 2017-2026 Harley-Davidson M8 Touring Models
• 2017-2026 FLHT Electra Glide
• 2017-2026 FLHX Street Glide
• 2017-2026 FLHR Road King
• 2017-2026 FLTR Road Glide
• 2017-2026 FLTRX Road Glide Special
• 2017-2026 FLTRXS Road Glide ST
• 2017-2026 FLHTK Ultra Limited
• 2017-2026 FLTRK Road Glide Limited
• All 2017-2026 CVO Touring Models
• 2024-2026 Models with VVT (Variable Valve Timing) and Updated Engine Covers
• NOTE: Slip-on mufflers only - replaces factory mufflers, uses stock header pipes

Features & Benefits

• High-Flow Perforated Baffle Design - Strategically engineered core maximizes exhaust flow while producing that deep, authoritative Harley tone
• 4.5" Diameter Muffler Body - Large body volume creates rich, deep bass notes without excessive volume or drone
• No Tuning Required - Designed to work perfectly with stock fuel mapping and catalyst—bolt on and ride
• EPA Compliant - Maintains factory catalyst for legal street riding in all 50 states
• Hand TIG-Welded Construction - Jewelry-quality welds throughout for strength, durability, and show-bike appearance
• Premium Stainless Steel or Black Ceramic Construction - Available in corrosion-resistant stainless steel or durable black ceramic coating for lasting performance and appearance
• Made in USA - Proudly built by hand at SP Concepts' Lake Elsinore, California facility
• Direct Bolt-On Installation - Simple replacement of factory mufflers using stock mounting points and included hardware
• Complete Hardware Kit Included - Everything needed for installation in the box
• Excellent Ground Clearance - Low-profile design maintains clearance for aggressive lean angles and lowered suspensions
• Deep Tone Without Drone - Carefully tuned acoustics deliver aggressive sound at idle and throttle without highway drone or cruising fatigue

Why Upgrade?

Stock Harley mufflers are engineered for silence, not soul—the SP Concepts Street Pro slip-ons fix that instantly. If you've been looking at full exhaust systems but don't want to deal with tuning hassles, O2 sensor relocations, and ECM flashes, these slip-ons are your answer. The perforated baffle design strikes the perfect balance: aggressive enough to announce your arrival, refined enough to avoid noise complaints or attention from law enforcement. The 4.5" body diameter is the sweet spot for M8 baggers—large enough to generate deep bass notes and reduce backpressure, but not so large that it looks out of proportion or compromises ground clearance. At idle, you'll get that satisfying potato-potato rumble that reminds you (and everyone else) you're riding American iron. Roll on the throttle and the exhaust opens up with a deep, authoritative bark that never gets harsh or tinny. Cruise down the highway and there's no annoying drone—just a satisfying burble that enhances the riding experience without fatigue. The hand TIG-welded construction isn't just about looks—it means every weld is inspected and perfected by skilled craftsmen at SP Concepts' California facility, ensuring leak-free performance and show-quality appearance. Whether you choose the classic stainless steel finish for timeless style or the black ceramic coating to match your blacked-out build, these slip-ons deliver an instant transformation in both sound and aesthetics. Installation is straightforward: remove stock mufflers, slip on the Street Pros, tighten the clamps, and you're done—no cutting, welding, or computer work required. Best of all, since these work with your stock catalyst and don't require tuning, they're 50-state legal and won't throw codes or affect warranty coverage. For riders who want that classic American V-twin exhaust note without the complexity or expense of a full system upgrade, the SP Concepts Street Pro 4.5" slip-ons deliver maximum impact with minimum hassle.

Note: Sold as a pair (left and right slip-on mufflers). Available in Stainless Steel or Black Ceramic finish. Complete hardware and installation instructions included. Slip-on mufflers only—uses stock header pipes and catalyst. No ECM tuning required. Maintains EPA compliance. Made in USA.