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KHROME WERKS Sound Reduction Kit for 3" HP-Plus® Mufflers Turn down the noise without turning down performance. The KHROME WERKS Sound Reduction Kit is an easy, bolt-in quiet insert designed for 3" HP-Plus® mufflers, delivering a more comfortable ride with minimal impact on top-end horsepower. Key Benefits Easy bolt-in sound reduction for 3" HP-Plus® mufflers Reduces 4dB at idle and helps improve low-end torque Machined discs with tapered bosses fit into each end of the patented resonator near the muffler exit Retained by included bolts and prevailing torque nuts for secure installation Designed for three-ball style resonators (6-1/2" long) Also fits many other mufflers (four-ball resonators) with optional 1/4"-20 x 11.00" threaded rods (rods not included) Made in the U.S.A. Installation Notes Installation requires removal of the mufflers . Kit includes machined discs and (2) 7-1/2" 1/4"-20 bolts plus two prevailing torque nuts. Product Details Brand: KHROME WERKS Product Name: Sound Reduction Kit Type: Quiet Insert Kit Riding Style: Street Model/Style: HP-Plus®, Round Unit: Each Weight: 0.5 lbs Dimensions: 11.96" x 7.87" x 0.55"
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