UnderDog Diesel » 4 Inch

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Items 1-60 of 152
Exhaust Pipe
Description: 17in. Muffler Bypass Pipe Aluminized Steel. Note: Replaces all 17" Overall Length Mufflers.
Item #: MDAL017
Condition: New
Price: $111.16
Sale: $89.99
Save: 19%
Save: $21.17
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Exhaust Pipe
Description: 36in. Muffler Bypass Pipe Aluminized Steel. Note: Universal Dodge, replaces all 36" Overall Length Mufflers.
Item #: MDA36
Condition: New
Price: $80.28
Sale: $64.99
Save: 19%
Save: $15.29
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Exhaust Pipe
Description: 4" Down Pipe for HX40 Turbo. Note: Not For Sale In California. 1998 Partial Year.
Item #: DALHX40
Condition: New
Price: $179.11
Sale: $144.99
Save: 19%
Save: $34.12
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Exhaust Pipe
Description: Aluminized 4" Inlet Outside Diameter Down Pipe Kit. Note: 1998 Partial year, do not use if vehicle has a catalytic converter.
Item #: DAL401
Condition: New
Price: $197.63
Sale: $159.99
Save: 19%
Save: $37.64

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Exhaust System Kit
Description: 4in. Filter Back Single Side Exit No Muffler T409 Stainless Steel. Note: No Tip Included.
Item #: S6287SLM
Condition: New
Price: $468.74
Sale: $374.99
Save: 20%
Save: $93.75

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Exhaust System Kit
Description: 4in. Cat-Back Dual Side Exit Aluminized Steel. Note: 5in. Outside Diameter Tip Included. This Exhaust has an Aggressive Exhaust Tone.
Item #: S5208AL
Condition: New
Price: $697.93
Sale: $564.99
Save: 19%
Save: $132.94

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Exhaust System Kit
Description: 4in. Cat-Back Dual Split Side Exit Aluminized Steel. Note: 5in. Outside Diameter Tips Included. This Exhaust has an Aggressive Exhaust Tone.
Item #: S5151AL
Condition: New
Price: $870.87
Sale: $704.99
Save: 19%
Save: $165.88

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Exhaust System Kit
Description: 4in. Cat-Back Dual Split Side Exit T409 Stainless Steel. Note: 5in. Outside Diameter Tips Included. This Exhaust has an Aggressive Exhaust Tone.
Item #: S5151409
Condition: New
Price: $1,037.63
Sale: $839.99
Save: 19%
Save: $197.64

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Exhaust System Kit
Description: 4in. Cat-Back Single Side Dual Outlet Aluminized Steel. Note: 5in. Outside Diameter Tips Included. This Exhaust Has an Aggressive Exhaust Tone.
Item #: S5150AL
Condition: New
Price: $870.87
Sale: $704.99
Save: 19%
Save: $165.88

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Exhaust System Kit
Description: 4in. Cat-Back Single Side Dual Outlet T409 Stainless Steel. Note: 5in. Outside Diameter Tips Included. This Exhaust Has an Aggressive Exhaust Tone.
Item #: S5150409
Condition: New
Price: $1,049.99
Sale: $849.99
Save: 19%
Save: $200.00

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Exhaust System Kit
Description: 4in. Cat-Back Single Side Exit Aluminized Steel. Note: 5in. Outside Diameter Tip Included.
Item #: S5149AL
Condition: New
Price: $617.63
Sale: $499.99
Save: 19%
Save: $117.64

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Exhaust System Kit
Description: 4in. Cat-Back Single Side Exit Aluminized Steel. Note: 5in. Outside Diameter Tip Included. This Exhaust has an Aggressive Exhaust Tone.
Item #: S5206AL
Condition: New
Price: $494.11
Sale: $399.99
Save: 19%
Save: $94.12

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Exhaust System Kit
Description: 4in. Cat-Back Single Side Exit Aluminized Steel. Note: No Tip Included. This Exhaust has an Aggressive Exhaust Note.
Item #: S5206P
Condition: New
Price: $456.24
Sale: $364.99
Save: 20%
Save: $91.25

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Exhaust System Kit
Description: 4in. Cat-Back Single Side Exit Aluminized Steel. Note: 5in. Outside Diameter Tip Included. This exhaust kit has one of the most aggressive sounds in the MBRP product line.
Item #: S5259AL
Condition: New
Price: $611.46
Sale: $494.99
Save: 19%
Save: $116.47

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Exhaust System Kit
Description: 4in. Cat-Back Single Side Exit Aluminized Steel. Note: 5in. Outside Diameter Tip Included.
Item #: S6000AL
Condition: New
Price: $648.52
Sale: $524.99
Save: 19%
Save: $123.53

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Exhaust System Kit
Description: 4in. Cat-Back Single Side Exit Aluminized Steel. Note: No Tip Included.
Item #: S6000P
Condition: New
Price: $524.99
Sale: $419.99
Save: 20%
Save: $105.00

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Exhaust System Kit
Description: 4in. Cat-Back Single Side Exit Aluminized Steel. Note: 4in. Front Pipe Included For Vehicles Not Equipped With A Catalytic Converter. 5in. Outside Diameter Tip Included.
Item #: S6004AL
Condition: New
Price: $734.99
Sale: $594.99
Save: 19%
Save: $140.00

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Exhaust System Kit
Description: 4in. Cat-Back Single Side Exit Aluminized Steel. Note: 4in. Front Pipe Included For Vehicles Not Equipped With A Catalytic Converter. No Tip Included.
Item #: S6004P
Condition: New
Price: $656.24
Sale: $524.99
Save: 20%
Save: $131.25

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Exhaust System Kit
Description: 4in. Cat-Back Single Side Exit Aluminized Steel. Note: 5in. Outside Diameter Tip Included.
Item #: S6108AL
Condition: New
Price: $605.28
Sale: $489.99
Save: 19%
Save: $115.29

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Exhaust System Kit
Description: 4in. Cat-Back Single Side Exit Aluminized Steel. Note: No Tip Included.
Item #: S6108P
Condition: New
Price: $524.99
Sale: $419.99
Save: 20%
Save: $105.00

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Exhaust System Kit
Description: 4in. Cat-Back Single Side Exit Aluminized Steel. Note: 5in. Outside Diameter Tip Included.
Item #: S6208AL
Condition: New
Price: $549.69
Sale: $444.99
Save: 19%
Save: $104.70

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Exhaust System Kit
Description: 4in. Cat-Back Single Side Exit Aluminized Steel. Note: No Tip Included.
Item #: S6208P
Condition: New
Price: $456.24
Sale: $364.99
Save: 20%
Save: $91.25

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Exhaust System Kit
Description: 4in. Cat-Back Single Side Exit Black Coated Aluminized Steel. Note: 5in. Outside Diameter Tip Included. This Exhaust kit has one of the most aggressive sounds in the MBRP product line.
Item #: S5259BLK
Condition: New
Price: $1,087.05
Sale: $879.99
Save: 19%
Save: $207.06

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Exhaust System Kit
Description: 4in. Cat-Back Single Side Exit No Muffler Aluminized Steel. Note: 4in. Front Pipe Included For Vehicles Not Equipped With A Catalytic Converter. No Tip Included.
Item #: S6004PLM
Condition: New
Price: $581.24
Sale: $464.99
Save: 20%
Save: $116.25

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Exhaust System Kit
Description: 4in. Cat-Back Single Side Exit No Muffler T409 Stainless Steel. Note: 4in. Front Pipe Included For Vehicles Not Equipped With A Catalytic Converter. No Tip Included.
Item #: S6004SLM
Condition: New
Price: $743.74
Sale: $594.99
Save: 20%
Save: $148.75

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Exhaust System Kit
Description: 4in. Cat-Back Single Side Exit Race Version Aluminized Steel. Note: 5in. Outside Diameter Tip Included. Very Aggressive on the 5.0L. Excludes PowerBoost.
Item #: S5209AL
Condition: New
Price: $543.52
Sale: $439.99
Save: 19%
Save: $103.53

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Exhaust System Kit
Description: 4in. Cat-Back Single Side Exit Race Version Black Coated Aluminized Steel. Note: 5in. Outside Diameter Tip Included. Very Aggressive on the 5.0L. Excludes PowerBoost.
Item #: S5209BLK
Condition: New
Price: $969.69
Sale: $784.99
Save: 19%
Save: $184.70

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Exhaust System Kit
Description: 4in. Cat-Back Single Side Exit Race Version T304 Stainless Steel. Note: 5in. Outside Diameter Tip Included. Very Aggressive on the 5.0L. Excludes PowerBoost.
Item #: S5209304
Condition: New
Price: $969.69
Sale: $784.99
Save: 19%
Save: $184.70

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Exhaust System Kit
Description: 4in. Cat-Back Single Side Exit Race Version T409 Stainless Steel. Note: 5in. Outside Diameter Tip Included. Very Aggressive on the 5.0L. Excludes PowerBoost.
Item #: S5209409
Condition: New
Price: $679.40
Sale: $549.99
Save: 19%
Save: $129.41

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Exhaust System Kit
Description: 4in. Cat-Back Single Side Exit Street Version T304 Stainless Steel. Note: 5in. Outside Diameter Tip Included..
Item #: S5093AL
Condition: New
Price: $636.16
Sale: $514.99
Save: 19%
Save: $121.17

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Exhaust System Kit
Description: 4in. Cat-Back Single Side Exit Street Version T304 Stainless Steel. Note: 5in. Outside Diameter Tip Included.
Item #: S5093304
Condition: New
Price: $1,179.69
Sale: $954.99
Save: 19%
Save: $224.70

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Exhaust System Kit
Description: 4in. Cat-Back Single Side Exit T304 Stainless Steel. Note: 5in. Outside Diameter Tip Included.
Item #: S5149304
Condition: New
Price: $1,037.63
Sale: $839.99
Save: 19%
Save: $197.64

Qty:

Exhaust System Kit
Description: 4in. Cat-Back Single Side Exit T304 Stainless Steel. Note: 5in. Outside Diameter Tip Included. This exhaust kit has one of the most aggressive sounds in the MBRP product line.
Item #: S5259304
Condition: New
Price: $1,037.63
Sale: $839.99
Save: 19%
Save: $197.64

Qty:

Exhaust System Kit
Description: 4in. Cat-Back Single Side Exit T304 Stainless Steel. Note: 4in. Front Pipe Included For Vehicles Not Equipped With A Catalytic Converter. 5in. Outside Diameter Tip Included.
Item #: S6004304
Condition: New
Price: $1,352.63
Sale: $1,094.99
Save: 19%
Save: $257.64

Qty:

Exhaust System Kit
Description: 4in. Cat-Back Single Side Exit T409 Stainless Steel. Note: 5in. Outside Diameter Tip Included. This Exhaust kit has of the most aggressive sounds in the MBRP product line.
Item #: S5259409
Condition: New
Price: $728.81
Sale: $589.99
Save: 19%
Save: $138.82

Qty:

Exhaust System Kit
Description: 4in. Cat-Back Single Side Exit T409 Stainless Steel. Note: 4in. Front Pipe Included For Vehicles Not Equipped With A Catalytic Converter. 5in. Outside Diameter Tip Included.
Item #: S6004409
Condition: New
Price: $914.11
Sale: $739.99
Save: 19%
Save: $174.12

Qty:

Exhaust System Kit
Description: 4in. Cat-Back Single Side Exit T409 Stainless Steel. Note: 5in. Outside Diameter Tip Included.
Item #: S6012409
Condition: New
Price: $772.05
Sale: $624.99
Save: 19%
Save: $147.06

Qty:

Exhaust System Kit
Description: 4in. Cat-Back Single Side Exit T409 Stainless Steel. Note: 5in. Outside Diameter Tip Included.
Item #: S6108409
Condition: New
Price: $679.40
Sale: $549.99
Save: 19%
Save: $129.41

Qty:

Exhaust System Kit
Description: 4in. Cat-Back Single Side Exit T409 Stainless Steel. Note: 5in. Outside Diameter Tip Included.
Item #: S6208409
Condition: New
Price: $722.63
Sale: $584.99
Save: 19%
Save: $137.64

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Exhaust Pipe
Description: 4in. Down Pipe Aluminized Steel. Note: Diesel Down Pipe.
Item #: DAL405
Condition: New
Price: $197.63
Sale: $159.99
Save: 19%
Save: $37.64

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Exhaust Pipe
Description: 4in. Down Pipe Aluminized Steel. Note: 4in. Down Pipe. Not for use on vehicles equipped with a Catalytic Converter.
Item #: FAL401
Condition: New
Price: $185.28
Sale: $149.99
Save: 19%
Save: $35.29
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Exhaust Pipe
Description: 4in. Down Pipe T409 Stainless Steel. Note: 1998 Partial year, do not use if vehicle has a catalytic converter.
Item #: DS9401
Condition: New
Price: $247.05
Sale: $199.99
Save: 19%
Save: $47.06

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Exhaust Pipe
Description: 4in. Down Pipe T409 Stainless Steel. Note: Pipe Assembly, 4", Down.
Item #: DS9405
Condition: New
Price: $216.16
Sale: $174.99
Save: 19%
Save: $41.17

Qty:

Exhaust Pipe
Description: 4in. Down Pipe T409 Stainless Steel. Note: Not for the use on vehicles equipped with a Catalytic Converter.
Item #: FS9401
Condition: New
Price: $209.99
Sale: $169.99
Save: 19%
Save: $40.00

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Exhaust System Kit
Description: 4in. Downpipe-Back Single Side Exit Aluminized Steel. Note: . No Tip Included.
Item #: S6005P
Condition: New
Price: $562.49
Sale: $449.99
Save: 20%
Save: $112.50

Qty:

Exhaust System Kit
Description: 4in. Downpipe-Back Single Side Exit No Muffler Aluminized Steel. Note: No Tip Included.
Item #: S6005PLM
Condition: New
Price: $499.99
Sale: $399.99
Save: 20%
Save: $100.00

Qty:

Exhaust System Kit
Description: 4in. Downpipe-Back Single Side Exit No Muffler T409 Stainless Steel. Note: Excludes 2002-2004 California Models. No Tip Included.
Item #: S6005SLM
Condition: New
Price: $687.49
Sale: $549.99
Save: 20%
Save: $137.50

Qty:

Exhaust System Kit
Description: 4in. Filter Back Dual Split Side Exit Cool Duals (TM) Aluminized Steel. Note: 5in. Outside Diameter Tips Included.
Item #: S6168AL
Condition: New
Price: $592.93
Sale: $479.99
Save: 19%
Save: $112.94

Qty:

Exhaust System Kit
Description: 4in. Filter Back Dual Split Side Exit Cool Duals (TM) Aluminized Steel. Note: 5in. Outside Diameter Tip Included.
Item #: S6244AL
Condition: New
Price: $802.93
Sale: $649.99
Save: 19%
Save: $152.94

Qty:

Exhaust System Kit
Description: 4in. Filter Back Dual Split Side Exit Cool Duals (TM) T409 Stainless Steel. Note: 5in. Outside Diameter Tips Included. Vehicles with 35" Spare tire may need to relocate the spare.
Item #: S6291409
Condition: New
Price: $1,006.75
Sale: $814.99
Save: 19%
Save: $191.76

Qty:

Exhaust System Kit
Description: 4in. Filter Back Single Side Dual Exit Aluminized Steel. Note: 5in. Outside Diameter Tips Included.
Item #: S6033AL
Condition: New
Price: $574.40
Sale: $464.99
Save: 19%
Save: $109.41

Qty:

Exhaust System Kit
Description: 4in. Filter Back Single Side Dual Exit Aluminized Steel. Note: 5in. Outside Diameter Tips Included. Vehicles with 35" Spare tire may need to relocate the spare.
Item #: S6290AL
Condition: New
Price: $592.93
Sale: $479.99
Save: 19%
Save: $112.94

Qty:

Exhaust System Kit
Description: 4in. Filter Back Single Side Dual Exit T409 Stainless Steel. Note: 5in. Outside Diameter Tips Included.
Item #: S6288409
Condition: New
Price: $704.11
Sale: $569.99
Save: 19%
Save: $134.12

Qty:

Exhaust System Kit
Description: 4in. Filter Back Single Side Dual Exit T409 Stainless Steel. Note: 5in. Outside Diameter Tips Included. Vehicles with 35" Spare tire may need to relocate the spare.
Item #: S6290409
Condition: New
Price: $697.93
Sale: $564.99
Save: 19%
Save: $132.94

Qty:

Exhaust System Kit
Description: 4in. Filter Back Single Side Exit Aluminized Steel. Note: 5in. Outside Diameter Tip Included.
Item #: S6026AL
Condition: New
Price: $450.87
Sale: $364.99
Save: 19%
Save: $85.88

Qty:

Exhaust System Kit
Description: 4in. Filter Back Single Side Exit Aluminized Steel. Note: No Tip Included.
Item #: S6026P
Condition: New
Price: $374.99
Sale: $299.99
Save: 20%
Save: $75.00

Qty:

Exhaust System Kit
Description: 4in. Filter Back Single Side Exit Aluminized Steel. Note: 5in. Outside Diameter Tip Included.
Item #: S6032AL
Condition: New
Price: $432.34
Sale: $349.99
Save: 19%
Save: $82.35

Qty:

Exhaust System Kit
Description: 4in. Filter Back Single Side Exit Aluminized Steel. Note: 5in. Outside Diameter Tip Included. EC/CC Models Only.
Item #: S6059AL
Condition: New
Price: $432.34
Sale: $349.99
Save: 19%
Save: $82.35

Qty:

Exhaust System Kit
Description: 4in. Filter Back Single Side Exit Aluminized Steel. Note: 5in. Outside Diameter Tip Included.
Item #: S6130AL
Condition: New
Price: $457.05
Sale: $369.99
Save: 19%
Save: $87.06

Qty:

Exhaust System Kit
Description: 4in. Filter Back Single Side Exit Aluminized Steel. Note: No Tip Included.
Item #: S6130P
Condition: New
Price: $393.74
Sale: $314.99
Save: 20%
Save: $78.75

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Items 1-60 of 152

View Universal items for: 4 Inch