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Quiet Performance Muffler

Quiet Performance Muffler

Quiet Performance Muffler

QP (Quiet Performance) Internal Mufflers

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(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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  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • Internal Muffler/Dampener 8" x 45" Internal Muffler/Dampener 8" x 45"

    Internal Muffler/Dampener 8" x 45"

    Grand Rock

    OEM PRICE $799.00
    YOUR PRICE $699.00
    VK-8 Internal Dampner 8" x 45" Add to your Pipe   PIPE NOT INCLUDED     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...
    VK-8
    OEM PRICE $799.00
    YOUR PRICE $699.00
    Qty in Cart: 0
    Price:
    OEM PRICE $799.00
    YOUR PRICE $699.00
    Subtotal:
  • Internal Muffler/Dampener 7" x 45" Internal Muffler/Dampener 7" x 45"

    Internal Muffler/Dampener 7" x 45"

    Grand Rock

    OEM PRICE $799.00
    YOUR PRICE $699.00
    VK-7 Internal Dampner 7" x 45" Add to your Pipe   PIPE NOT INCLUDED     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...
    VK-7
    OEM PRICE $799.00
    YOUR PRICE $699.00
    Qty in Cart: 0
    Price:
    OEM PRICE $799.00
    YOUR PRICE $699.00
    Subtotal:
  • Internal Muffler/Dampener 6" x 45" Internal Muffler/Dampener 6" x 45"

    Internal Muffler/Dampener 6" x 45"

    Grand Rock

    OEM PRICE $799.00
    YOUR PRICE $699.00
    VK-6 Internal Dampner 6" x 45" Add to your Pipe   PIPE NOT INCLUDED     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...
    VK-6
    OEM PRICE $799.00
    YOUR PRICE $699.00
    Qty in Cart: 0
    Price:
    OEM PRICE $799.00
    YOUR PRICE $699.00
    Subtotal:
  • QP-5LC or VK-5 Internal Dampener 5" x 45" Add to your Pipe QP-5LC or VK-5 Internal Dampener 5" x 45" Add to your Pipe

    QP-5LC or VK-5 Internal Dampener 5" x 45" Add to your Pipe

    Grand Rock

    OEM PRICE $1,241.00
    YOUR PRICE $759.00
    QP-5LC or VK-5 Internal Dampner 5" x 45" Add to your Pipe   PIPE NOT INCLUDED     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...
    VK-5
    OEM PRICE $1,241.00
    YOUR PRICE $759.00
    Qty in Cart: 0
    Price:
    OEM PRICE $1,241.00
    YOUR PRICE $759.00
    Subtotal:
  • 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 $2,253.00
    YOUR PRICE $899.00
    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...
    QPM-561
    OEM PRICE $2,253.00
    YOUR PRICE $899.00
    Qty in Cart: 0
    Price:
    OEM PRICE $2,253.00
    YOUR PRICE $899.00
    Subtotal:
  • QPM-561AERO-2 for Dual Mufflers AeroCab Kenworth Muffler Kit QPM-561AERO-2 for Dual Mufflers AeroCab Kenworth Muffler Kit

    QPM-561AERO-2 for Dual Mufflers AeroCab Kenworth Muffler Kit

    Grand Rock

    OEM PRICE $7,507.00
    YOUR PRICE $2,309.00
    QPM-561AERO-2 Aero Cab Muffler 5" x 61"  5 ID/OD QPM-561AERO DUAL Muffler Replacement Kit DUAL Kit Includes      QPM-561 TYPE 1, 6" X 61", 5" ID/OD, AERO CAB MUFFLER 2 PCS KW-5AEY2M KW AERO CAB Y-PIPE  ALZ. 1 ...
    QPM-561AERO-2
    OEM PRICE $7,507.00
    YOUR PRICE $2,309.00
    Qty in Cart: 0
    Price:
    OEM PRICE $7,507.00
    YOUR PRICE $2,309.00
    Subtotal:
  • QPM-561 Aero Cab for Single Muffler Kit  5" x 61" QPM-561 Aero Cab for Single Muffler Kit  5" x 61"  ID/OD

    QPM-561 Aero Cab Single Muffler Kit 5" x 61"

    Grand Rock

    OEM PRICE $6,004.00
    YOUR PRICE $2,099.00
    QPM-561 Aero Cab Muffler Type 1 5" x 61"  5 ID/OD QPM-561AERO Single Muffler Replacement Kit   Kit Includes:  QPM-561 QPM-561 AERO MUFFLER 2. PCS KW-5AEY AEROKIT Y-PIPE 1. PCS KW-18614 REP K180-18614 1. PCS ...
    QPM-561AERO
    OEM PRICE $6,004.00
    YOUR PRICE $2,099.00
    Qty in Cart: 0
    Price:
    OEM PRICE $6,004.00
    YOUR PRICE $2,099.00
    Subtotal:
  • Total: items /

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