KHROME WERKS 4-1/2" HP-Plus® Slip-On Mufflers with Race Tip

KHROME WERKS 4-1/2" HP-Plus® Slip-On Mufflers with Race Tip Upgrade your Twin Cam with KHROME WERKS 4-1/2" HP-Plus® slip-on mufflers. Designed to deliver a bold, authoritative tone and improved throttle response—without harsh, high-frequency noise. Dyno-tested for performance gains, these mufflers feature a performance-focused internal design that helps increase output and tighten response. Key Features 4-1/2" 16-gauge muffler body for durable street performance Dyno results show 12% increase in torque and 7% increase in power Absorptive baffle wrapped with stainless steel mat and high-temp fiberglass Khrome Werks signature tone—deep and controlled, no annoying rasp Improved torque/horsepower from the hit of the throttle Billet aluminum race tips rotate 360° at 90° increments Optional bolt-in inserts available that comply with SAE J2825 sound testing with no appreciable performance loss Optional performance inserts enhance low-end power and sound Sold in pairs ; Made in the U.S.A. Specifications Type: Slip-On Model: HP-Plus® Outer Diameter: 4-1/2" End Cap Style: Race End Cap Color/Finish: Chrome Riding Style: Street Units: Pair Weight: 24.6 lbs Dimensions: 35.5" x 10.75" x 5.5"