These unique 4″ HP-Plus® mufflers for Touring models from Khrome Werks are designed to produce excellent power while allowing the user control over their “rumble level”. All new absorptive type baffles emit a deep, mellow exhaust tone that is adjustable by simply changing an insert held into the baffle by two bolts. The interchangeable baffle inserts delineate the performance or touring noise level options; and the ingenious design of the insert allows you to change the insert in minutes with hand tools (no hammers!). Horsepower and torque gains over stock mufflers with both versions are achieved in part by an internal expansion chamber in the baffle core. The main steel baffle core is machine wrapped with first a stainless steel wool then a high temperature fiberglass blanket for acoustic longevity assurance. The performance insert is designed to enhance top end power while retaining good low end torque and a mid-level sound output, while the touring insert trades minimal top end output for mile after mile of an enjoyable, radio-friendly, lower rumbling exhaust note. The one-piece, 16 gage steel tubing muffler shell is finished in either highly polished, duplex nickel chrome or a high temperature, Jet Hot® black ceramic coating. Made in USA; both versions are SAEJ2825 compliant. See the video on our web site that demonstrates the ease of insert change and sound level output.

All Exhaust Systems listed on these pages are designed solely for Competition Race Use Only.
Not designed or legal for use on a public highway.

Not legal for sale or use in California on any pollution controlled motor vehicle.
Not legal for sale or use on any EPA pollution controlled motor vehicle.

Weight 1 lbs

Emissions Compliant

Country of Origin

Exhaust Type


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