4" HP40 slip-on muffler for select 2025 HD Softails; free-flowing 4" design improves performance and produces a deep, throaty rumble.
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3.5 in HP35 Slip-On for HD: DBX-style catalyst baffle for increased horsepower and torque. Easy install, tuning recommended. OEM gaskets required (not included). No O2 sensor holes.
High-density friction plates increase surface area by 11% for longer clutch life; precision-manufactured drive plates; made in the U.S.A.
Direct replacement twist-grip sensor with pre-installed MIL‑SPEC terminals and hardwired harness connection.
Top-quality OEM-style replacement connector and terminals. Easy to use, made in the USA.
Complete extension wiring kit with pre-crimped Molex terminals, heat shrink, and color-matching wire to extend OEM H-D handlebar switch wiring. Made in the U.S.A.
Durable stainless steel muffler clamps with a 360° reaction block to prevent distortion and corrosion-resistant fasteners for reliable exhaust sealing.
4.5" slip-on mufflers tuned for HD touring bikes. Works with stock head pipes; DBX Performance baffle for improved sound and power. Made in USA with a Forever Warranty.
Dyno-tested: 12% more torque and 7% more power. 4-1/2" HP-Plus® slip-on with absorptive baffle and 16-gauge body. Made in the U.S.A.
- High-performance radial piston design with straight flow for fast response
- Anti-block and anti-fading systems for reliable damping
- 50/30-click rebound and compression adjusters
- Progressive spring with threaded preload; adjustable for solo or two-up riding
- Patented pivoting risers for customizable bar position
- Mounts on most V‑Twin machines with an open mounting area
- Simple bolt‑on installation; secure top and bottom clamping
- Made in the USA; verify cable and brake line length before installation
Performance inserts for 4" and 4-1/2" mufflers. Adjustable tone via bolt-held inserts. Easy installation with basic hand tools; change sound in minutes.
Deep, adjustable tone by swapping inserts in minutes.
Control your "Growl Level" with a two-bolt insert.
Easy installation with basic hand tools; no hammers required.
Durable drag-style handlebar with 14-gauge steel tubing. Made in the U.S.A.