Exhaust Silencer 1-5/16" with HD SS Clamp

Product Description

Classic RLV #4104 stock class muffler with a 1 5/16" opening. Dyno tuned to actually create better performance on most engines. Mandated by most karting sanctions. Comes with clamp.

Don't let the name "Silencer" / "Muffler" fool you, it is designed to help give the engine a little extra torque, it does in fact take the edge of the POP POP during deceleration, but it's still LOUD. 

The B91XL muffler fits the following pipes:

•     KD5438
•     GPS-0010
•     GPS-0020
•     KD5432
•     KD5435

If using a muffler with header pipe, it must be supported with a brace to prevent damage to the pipe. we would recommend part #KDHBS