Motorcycle noise standards vary greatly. For example, the federal standard is 80 decibels, which is the loudness of a dial tone, but California's standard is 95 decibels, which is the sound of a subway train at a distance of 200 feet. If your motorcycle exhaust is too loud to pass inspection, a quick and easy solution is to replace the mufflers on your bike with quieter slip-on mufflers.
- Skill level:
- Moderately Easy
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Things you need
- Flat head screwdriver
- Penetrating oil
- Torx wrenches (optional depending on foot pegs)
- Allen wrenches (optional depending on foot pegs)
- Open end wrenches
- Socket wrench and sockets
- Rubber mallet
Remove the front and rear head pipe heat shields by loosening the worm clamps that secure the shields to the pipes with a flat head screwdriver.
Loosen the muffler joint clamps where each muffler connects to the exhaust pipes. Apply penetrating oil to the slip joint notches if they are stiff.
Insert a flat head screwdriver inside each slip joint notch. Pry open the slip joints on both mufflers with the screwdriver.
Remove the right passenger peg with a Torx wrench, Allen wrench, or open end wrench depending on the fastener used on your motorcycle. Remove and save the bolts that attach the mufflers to the mounting bracket.
Loosen, but do not remove, the exhaust manifold bolts with a socket and socket wrench. Do not remove the bolts, head pipes or exhaust gaskets.
Remove both mufflers by persistently twisting, pulling and tapping them with a rubber mallet.
Remove the muffler brackets from your currently installed mufflers and bolt them to the mounting bracket with a socket wrench and socket.
Remount the front muffler on the slip joint. Loosely reinstall a slip joint clamp over the front muffler slip joint. Loosely attach the front muffler to the lower mounting bracket holes.
Remount the rear muffler on the rear muffler slip joint. Loosely reinstall a slip joint clamp over the rear muffler slip joint. Loosely attach the rear muffler to the upper mounting bracket holes.
Tighten both slip joint clamps with a socket wrench. Tighten all muffler bracket and mounting bracket bolts with a socket wrench.
Tighten the exhaust manifold bolts with a socket wrench and socket. Reinstall the right passenger peg. Reinstall the front and rear head pipe heat shields by tightening the worm clamps with a screwdriver.
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