Sound Reduction Kit

Quiet Insert

• Easy, bolt-in sound reduction for 3" HP-Plus® mufflers
• Takes off 4dB at idle and improves low-end torque - minimal loss of top-end horsepower
• The machined discs with tapered bosses fit into each end of the patented resonator near the exit end of the mufflers and are retained by the supplied bolts and nuts
• This kit is designed to use with three-ball style resonators that are 6-1/2" long
• Will also fit most other mufflers (four-ball style resonators) if 1/4"-20 x 11.00" threaded rods are substituted for the supplied bolts
• Installation requires removal of the mufflers
• Kit includes machined discs and (2) 7-1/2" 1/4"-20 bolts and two prevailing torque nuts
• Made in the U.S.A.