International ProStar DPF & Mufflers
Maintain smooth driving performance with a top-notch muffler for your International Prostar. Shop our selection of custom and aftermarket mufflers from the most reliable brands. Explore your options for aftermarket mufflers at 4 State Trucks.
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On SaleFREE SHIPPING OVER $249Limited Quantity Available
BESTfit Internal Muffler Inserts For 5in, 6in, 7in & 8in Stacks
BESTFIT TRUCK PARTS
$144.49 - $193.99Reduce exhaust noise and extend stack life with BESTfit Internal Muffler Inserts for 5-, 6-, 7-, and 8-inch stacks. Crafted for optimal airflow and precision fit, these inserts replace OEM parts...PPR_894- SKU:
- PPR_894
- Truck Class:
- Universal
- Length Options:
- 39 Inch
- Make:
- Universal Items
- Finish Options:
- Chrome-Plated
- Material Options:
- Steel
- Truck Class:
- Heavy Duty
- Product Type:
- Exhaust
- Diameter Options:
- 7 Inch
- Diameter Options:
- 6 Inch
- Material Options:
- Aluminized Steel
- Diameter Options:
- 5 Inch
- Ready To Ship:
- Yes
$144.49 - $193.99Qty in Cart: 0Price:$144.49 - $193.99Subtotal: -
FREE SHIPPING OVER $249
9 Inch Diameter Short Galvanized Exhaust Muffler 5 ID / 5 ID X 12 Inch Body Length by BESTfit
BESTFIT TRUCK PARTS
$94.99BESTfit 9 x 12 Inch Muffler W/ 5 Inch ID Inlet & OutletTransform your truck's exhaust system with the BESTfit 9 X 12 Inch Short Galvanized Exhaust Muffler, featuring a 5 Inch ID inlet and outlet for...09-080201- SKU:
- 09-080201
- Truck Class:
- Universal
- Material Options:
- Steel
- Make:
- Universal Items
- Finish Options:
- Galvanized
- Diameter Options:
- 9 Inch
- Length Options:
- 12 Inch
- Product Type:
- Exhaust
- Ready To Ship:
- Yes
$94.99Qty in Cart: 0Price:$94.99Subtotal: -
FREE SHIPPING OVER $249
10 Inch Diameter Performance Shorty Muffler 5 Inch ID / ID X 30 Inch OAL by BESTfit
BESTFIT TRUCK PARTS
$198.99BESTfit 30 Inch Performance Shorty MufflerEnhance your truck's performance with the BESTfit 10 X 30 Inch Performance Shorty Muffler, engineered for maximum efficiency and power. This high-quality...09-080207- SKU:
- 09-080207
- Truck Class:
- Universal
- Material Options:
- Steel
- Make:
- Universal Items
- Length Options:
- 30 Inch
- Diameter Options:
- 5 Inch
- Product Type:
- Exhaust
$198.99Qty in Cart: 0Price:$198.99Subtotal: -
10 Inch Diameter Muffler 5 ID X 51 Inch OAL- Replaces 04-21774-001 by BESTfit
BESTFIT TRUCK PARTS
$117.99BESTfit 10 Inch Diameter Muffler With 5 Inch Inlet & OutletOptimize your exhaust system with the BESTfit 10 Inch Diameter Muffler, featuring a 5-inch inlet and outlet for maximum efficiency. With a...29-080200- SKU:
- 29-080200
- Truck Class:
- Heavy Duty
- Material Options:
- Steel
- Make:
- Universal Items
- Finish Options:
- Chrome-Plated
- Diameter Options:
- 5 Inch
- Length Options:
- 51 Inch
- Product Type:
- Exhaust
- Ready To Ship:
- Yes
$117.99Qty in Cart: 0Price:$117.99Subtotal: -
BESTfit 9 Inch Diameter Muffler With 5 ID / 5 ID X 51 Inch OAL
BESTFIT TRUCK PARTS
$165.99BESTfit 9 Inch Diameter Muffler With 5 Inch Inlet & OutletUpgrade your truck's exhaust system with the BESTfit 9 Inch Diameter Muffler from 4 State Trucks. This high-quality muffler is designed to...29-080201- SKU:
- 29-080201
- Truck Class:
- Heavy Duty
- Diameter Options:
- 9 Inch
- Length Options:
- 51 Inch
- Material Options:
- Steel
- Make:
- Universal Items
- Finish Options:
- Chrome-Plated
- Product Type:
- Exhaust
- Ready To Ship:
- Yes
$165.99Qty in Cart: 0Price:$165.99Subtotal: -
FREE SHIPPING OVER $249
8 Inch Diameter Muffler 5 ID / ID X 30 Inch OAL by BESTfit
BESTFIT TRUCK PARTS
$161.99BESTfit Muffler 8 Inch DiameterThe BESTfit 8 X 30 Inch OAL Exhaust Muffler is an exceptional choice for drivers looking to enhance their truck's exhaust with added performance and durability. Made...09-080230- SKU:
- 09-080230
- Diameter Options:
- 8 Inch
- Truck Class:
- Universal
- Material Options:
- Aluminized Steel
- Make:
- Universal Items
- Length Options:
- 30 Inch
- Product Type:
- Exhaust
- Ready To Ship:
- Yes
$161.99Qty in Cart: 0Price:$161.99Subtotal: -
10 Inch Diameter Performance Sport Muffler 5 ID / ID X 51.5 Inch
PITTSBURGH POWER
$275.99Pittsburgh Power Performance Sport MufflerElevate your truck's performance with the Pittsburgh Power Performance Sport Muffler, designed to enhance power and efficiency. With its substantial size and...09-080220- SKU:
- 09-080220
- Truck Class:
- Universal
- Diameter Options:
- 10 Inch
- Location:
- Made In USA
- Material Options:
- Steel
- Make:
- Universal Items
- Length Options:
- 51 1/2 Inch
- Product Type:
- Exhaust
$275.99Qty in Cart: 0Price:$275.99Subtotal: -
6 Inch Diameter Chrome Steel Muffler 5 ID / 6 ID X 51 Inch OAL by BESTfit
BESTFIT TRUCK PARTS
$566.99BESTfit Chrome Steel Exhaust Muffler W/ Internal Louvered CoreElevate your truck's exhaust with the BESTfit Chrome Steel Muffler, a masterpiece of engineering and design. This top-of-the-line muffler...09-080205- SKU:
- 09-080205
- Diameter Options:
- 6 Inch
- Truck Class:
- Universal
- Length Options:
- 51 Inch
- Material Options:
- Steel
- Make:
- Universal Items
- Finish Options:
- Chrome-Plated
- Product Type:
- Exhaust
- Ready To Ship:
- Yes
$566.99Qty in Cart: 0Price:$566.99Subtotal: -
FREE SHIPPING OVER $249
BESTfit Alumnzd Steel Muffler 8 Inch Diameter W/ 5 Inch ID Inlet/Outlet
BESTFIT TRUCK PARTS
$143.99Muffler 8 Inch Diameter Alumnzd Steel W/ 5 Inch ID Inlet/OutletThe BESTfit 8 X 22 Inch Aluminized Steel Muffler offers an exceptional blend of durability and performance for your truck's exhaust...09-080229- SKU:
- 09-080229
- Diameter Options:
- 8 Inch
- Truck Class:
- Universal
- Material Options:
- Aluminized Steel
- Make:
- Universal Items
- Length Options:
- 22 Inch
- Product Type:
- Exhaust
- Ready To Ship:
- Yes
$143.99Qty in Cart: 0Price:$143.99Subtotal: -
BESTfit 5 OD X 18 Inch Aluminized Internal Muffler / Baffle -16 Gauge
BESTFIT TRUCK PARTS
$79.99BESTfit Type 1 A 16 Gauge Aluminized Steel Internal MufflerThis high-performance internal muffler is designed for 36-inch straight stacks, fitting into the bottom for efficient operation on older...09-080200006- SKU:
- 09-080200006
- Diameter Options:
- 5 Inch
- Truck Class:
- Universal
- Length Options:
- 18 Inch
- Material Options:
- Aluminized Steel
- Make:
- Universal Items
- Product Type:
- Exhaust
$79.99Qty in Cart: 0Price:$79.99Subtotal: -
10 Inch Diameter Performance Muffler 6 ID / 6 ID X 51.5 Inch OAL
PITTSBURGH POWER
$305.99High Performance Muffler Increases Horsepower, Mileage & Reduces Back PressureThe Performance Muffler, measuring 10 inches by 51.5 inches and featuring a 6-inch inlet and outlet, is designed to...09-080200001- SKU:
- 09-080200001
- Diameter Options:
- 6 Inch
- Truck Class:
- Universal
- Location:
- Made In USA
- Material Options:
- Steel
- Make:
- Universal Items
- Length Options:
- 51 1/2 Inch
- Product Type:
- Exhaust
$305.99Qty in Cart: 0Price:$305.99Subtotal: -
FREE SHIPPING OVER $249
9 Inch Diameter Muffler 5 ID / 5 ID X 26.50 Inch OAL 87Q-500-674
AUTOMANN USA
$183.995 X 26.5 Inch Galvanized Steel Exhaust Muffler With Interior Baffles And No Divider, Straight Through Design.Optimize your truck's exhaust with the Galvanized 26.5 Inch Exhaust Muffler, featuring a...09-080206- SKU:
- 09-080206
- Diameter Options:
- 9 Inch
- Finish Options:
- Galvanized
- Material Options:
- Steel
- Truck Class:
- Heavy Duty
- Make:
- Universal Items
- Product Type:
- Exhaust
- Length Options:
- 27 Inch
- Ready To Ship:
- Yes
$183.99Qty in Cart: 0Price:$183.99Subtotal: -
BESTfit 10 Inch Diameter High Flow Muffler Type 1 51 Inch OAL
BESTFIT TRUCK PARTS
$534.9910 Inch Diameter Replacement MufflerThis high flow replacement muffler works with all engines and is designed to replace 10-inch diameter stock mufflers. It runs as quietly as your stock muffler...09-080200- SKU:
- 09-080200
- Truck Class:
- Universal
- Diameter Options:
- 5 Inch
- Make:
- Universal Items
- Product Type:
- Exhaust
- Length Options:
- 44 1/2 Inch
- Material Options:
- Aluminized Steel
- Ready To Ship:
- Yes
$534.99Qty in Cart: 0Price:$534.99Subtotal: -
10 Inch Diameter Performance Muffler 51.5 Inch OAL by BESTfit
BESTFIT TRUCK PARTS
$199.99BESTfit 51.5 Inch Performance Sport MufflerExperience enhanced performance and power with the BESTfit 51.5 Inch Performance Sport Muffler, meticulously designed to meet the demands of...09-080208- SKU:
- 09-080208
- Truck Class:
- Universal
- Material Options:
- Steel
- Make:
- Universal Items
- Finish Options:
- Chrome-Plated
- Length Options:
- 51 Inch
- Product Type:
- Exhaust
- Ready To Ship:
- Yes
$199.99Qty in Cart: 0Price:$199.99Subtotal: -
BESTfit 6 Inch Round Chrome Muffler 6 ID x 51 Inch OAL
BESTFIT TRUCK PARTS
$586.99BESTfit Chrome Exhaust MufflerUpgrade your truck's exhaust with the luxurious BESTfit 51 Inch Chrome Muffler, designed with a 6 Inch Inlet & Outlet from 4 State Trucks. Made of premium chrome-plated...09-080204- SKU:
- 09-080204
- Truck Class:
- Universal
- Material Options:
- Steel
- Make:
- Universal Items
- Finish Options:
- Chrome-Plated
- Length Options:
- 51 Inch
- Diameter Options:
- 6 Inch
- Product Type:
- Exhaust
$586.99Qty in Cart: 0Price:$586.99Subtotal: -
BESTfit 4 X 18 Inch Aluminized Steel Internal Muffler 16 Gauge
BESTFIT TRUCK PARTS
$66.99BESTfit Internal Exhaust Baffle TubeExperience the superior quality of the BESTfit 4 X 18 Inch 16 Gauge Aluminized Steel Internal Muffler from 4 State Trucks. This premium internal muffler, made from...09-080200005- SKU:
- 09-080200005
- Truck Class:
- Universal
- Diameter Options:
- 4 Inch
- Length Options:
- 18 Inch
- Material Options:
- Aluminized Steel
- Make:
- Universal Items
- Product Type:
- Exhaust
- Ready To Ship:
- Yes
$66.99Qty in Cart: 0Price:$66.99Subtotal: -
Mufflers With Interior Baffles 4 Inch Inlet / Outlet
AFTERMARKET
$271.99 - $389.99Maximize your truck's exhaust performance with these durable Mufflers with Interior Baffles featuring 4-inch inlet and outlet. With options including 9 Inch Diameter x 51 Inch OAL, 10 Inch Diameter x...PPR_298971- SKU:
- PPR_298971
- Truck Class:
- Heavy Duty
- Material Options:
- Steel
- Make:
- Universal Items
- Product Type:
- Exhaust
$271.99 - $389.99Qty in Cart: 0Price:$271.99 - $389.99Subtotal: -
Galvanized Steel Exhaust Resonator 4 Inch Inlet / Outlet 9 Inch Body
AFTERMARKET
$210.99Galvanized Steel Exhaust Resonator With Interior Baffle DesignImprove your heavy-duty truck's exhaust system with the Galvanized Steel Exhaust Resonator. Its 4-inch inlet and outlet, 9-inch body...09-08020002- SKU:
- 09-08020002
- Material Options:
- Steel
- Truck Class:
- Heavy Duty
- Length Options:
- 16 Inch
- Diameter Options:
- 4 Inch
- Make:
- Universal Items
- Product Type:
- Exhaust
$210.99Qty in Cart: 0Price:$210.99Subtotal: -
BESTfit 9 Inch Diameter Aluminized Type 1 Muffler With 4 Inch ID / ID
BESTFIT TRUCK PARTS
$206.99Stainless Steel 4 Inch ID End In - End Out Centered Muffler* High Quality Muffler* Aluminized* Dimensions: - 9 Inch Body Diameter - 44.5 Inch Body Length - 51 Inch Overall Length* Made In USA*...09-08020051- SKU:
- 09-08020051
- Product Type:
- Exhaust
- Length Options:
- 51 Inch
- Material Options:
- Aluminized Steel
- Diameter Options:
- 9 Inch
- Make:
- Universal Items
$206.99Qty in Cart: 0Price:$206.99Subtotal: -
BESTfit 8 Inch Diameter Muffler Type 1 4 ID / 5 ID X 21 Inch OAL
BESTFIT TRUCK PARTS
$145.99BESTfit 4 Inch In X 5 Inch Out X 8 X 21 Inch Aluminized Steel Type 1 MufflerBoost your truck's exhaust performance with the BESTfit 4 Inch In X 5 Inch Out X 8 X 21 Inch Aluminized Steel Type 1...09-080200003- SKU:
- 09-080200003
- Diameter Options:
- 5 Inch
- Truck Class:
- Universal
- Length Options:
- 21 Inch
- Material Options:
- Aluminized Steel
- Make:
- Universal Items
- Style Options:
- Angled
- Product Type:
- Exhaust
$145.99Qty in Cart: 0Price:$145.99Subtotal:
