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.
Heat-treated, shot-peened 1-2 shift clutch for durable, reliable replacement.
Replacement countershaft for compatible transmissions, precision machined for reliable shifting and long service life.
Replacement for stock main and countershaft 3rd. Upgraded drive slots with lead-in ramps for quicker, more positive shifting.
Specifically designed to fit all track pitches: 2.52", 2.86", 3", 3.5". Works with snowmobiles and snowbikes up to 3.25" lug depth. Over-sized 5" caster wheels for easy movement. Tapered sides for straightforward track installation.
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.
- 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
Precision cam sprocket built for reliable valve timing and long service life.
Replacement stock second gear with lead-in ramps for more positive 1-2 shifts. Made in USA.
Replacement fourth gear with wider drive slots and steeper lead-in ramps for improved 3-4 shifting.
Includes an updated O-ring groove design for chain drive fourth gears.
One-piece cold-forged fork. Fully heat treated and black oxide coated. Made in the U.S.A.
Prevents sliding and spills in truck beds. Fast-flow ripper cap and view strip for easy level checks.