Quiet Performance Muffler
QP (Quiet Performance) Internal Mufflers
(For Dual Exhaust Only!)
(muffler only, stack ordered seperately)
• Quiet as Stock Mufflers*
• Meets Federal and California Sound Levels
• 6.2% Fuel Mileage Increase (avg.)
• 3% HORSEPOWER Gain
• No Turbo Lag, Faster Acceleration
• Easy Installation
• Fits Inside 5", 6" or 7" Stacks (dual only)
• Straight Stack Look WITHOUT the Noise!
* Driving and Acceleration only, NOT engine braking.
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![QPM-561 Aero Cab Muffler Type 1 6" x 61" with 5" ID Outlet and 5" OD Inlet]( "QPM-561 Aero Cab Muffler Type 1 6\" x 61\" with 5\" ID Outlet and 5\" OD Inlet")
![QPM-561 Aero Cab Muffler Type 1 6" x 61" with 5" ID Outlet and 5" OD Inlet]( "QPM-561 Aero Cab Muffler Type 1 6\" x 61\" with 5\" ID Outlet and 5\" OD Inlet")
Kenworth Aero Quiet Perfomance Muffler 5" x 61" QPM-561
Grand Rock
OEM PRICE $2,021.00YOUR PRICE $1,132.00QPM-561 Aero Cab Muffler Type 1 5" x 61" 5 ID/OD QPM-561 Muffler Replacement At Truck Pipes USA we offer you a large variety of exhaust systems for All Kenworth trucks on the road today. Browse our...GRCQPM-561OEM PRICE $2,021.00YOUR PRICE $1,132.00
