• Unleash your beast with Khrome Werks performance Insert for 4" HP-Plus mufflers
• HP-Plus baffles emit a deep, mellow exhaust tone that is adjustable by simply changing an insert held into the baffle by two bolts
• Gives you control over your "Growl Level"
• Produces deep, rich tones with the perfect balance of performance and sound
• Change sound levels in minutes, not hours
• Specially designed for easy installation with basic hand tools (no hammers!)
• Sold in pairs

Fits: Intended for Khrome Werks 4" mufflers (not guaranteed on other 4" mufflers)