Grand Rock

Kenworth Aero Quiet Perfomance Muffler 5" x 61" QPM-561

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Warehouse Ships product out within 4-5 Business Days. Do you have a TRUCK DOWN? Choose the TRUCK DOWN RUSH FEE for just one item in your cart and order will ship same day if ordered before 12:00 PM Eastern Time - Monday-Friday
  • Kenworth Aero Quiet Perfomance Muffler 5" x 61" QPM-561
  • 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
OEM PRICE $2,253.00
YOUR PRICE $899.00
— You save $1,354.00


QPM-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 site and you will see that we have many Kenworth Exhaust parts in stock, ready to ship direct to you. 

If you are having trouble figuring out what Kenworth exhaust part you need, just call the local kenworth dealer in your area with your Kenworth Truck VIN number.   Some Kenworth dealers won't share the information, but dont give up.  

Just call a different dealer in another State, most are happy to help you figure out your needs.  

All of our aftermarket Kenworth exhaust system parts will deliver the exact same performance that the Kenworth OEM pipes offer, but ours are sold at a much lower price.

Our Kenworth exhaust system parts are designed and fabricated right here in the USA. 

Don't be fooled by our competition offering Chinese made, inferior chrome pipes and stacks.  

All of our Chrome Exhaust pipes are chromed right here in the Midwest.

If you need exhaust for Domestic or Import trucks, SUV's, off-road warriors, daily drivers, muscle cars, Hot Rods or Farm Tractors.

We have the right Mufflers, DPF, Stack Pipes, Exhaust Elbows, or OEM Direct Fit Tubes

We try to make the online buying process easy for you by offering more parts at the lowest price. Do you need Stainless Steel Parts? We offer a nice variety of stainless steel exhaust systems too.

Browse the Catalog below by Clicking on the Picture.


Don't pay full retail for your exhaust!!

Shop with us and SAVE!!

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Warranty Information

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1 Review

  • 5
    Excellent quality and product

    Posted by matt c on 13th May 2019

    great replacement vs the dealer and half of the price. thank you

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