2003 Audi S4 Exhaust Systems

2003 Audi S4 is a wonderful vehicle from the factory. The parts you will find in our catalog will help you bring the best out of your S4. We have 1921 Exhaust Systems available for your 2003 S4 all priced at lowest possible price backed by FREE SHIPPING. 

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Borla Polished Stainless Steel Round Rolled-Edge Angle Cut Single Outlet Exhaust Tip with Logo (4" Inlet, 5" Tip Size, 14" Length)
Borla Polished Stainless Steel Round Rolled-Edge Angle Cut Single Outlet Exhaust Tip with Logo (4" Inlet, 5" Tip Size, 14" Length)
Universal Part | Part #: 20249
Highlights: All Welded; 4"; 4"; 4"; T-304 Stainless Steel; No; Single Outlet; 14"; Round Angle Cut; Polished T-304 Stainless Steel; 5"
Price: $93.95
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Fleece Performance Stack Cover - 7 inch - Straigh Cut
Fleece Performance Stack Cover - 7 inch - Straigh Cut
Universal Part | Part #: FPE-STK-CVR-7-S
Highlights: Constructed from heavy duty vinyl; band clamp to ensure a tight fit
Price: $54.95
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Flowmaster 50 H.D. Muffler - 3.50 Offset In / 3.50 Offset Out - Moderate Sound
Flowmaster 50 H.D. Muffler - 3.50 Offset In / 3.50 Offset Out - Moderate Sound
Universal Part | Part #: 953558
Highlights: Gray; Aluminized Steel; 90 Months; Moderate Sound; Improved Horsepower, Torque and Engine Efficiency; Recommended for Dodge Ram Hemi and diesel trucks; Mild interior resonance; 9.75; 5; 18; Aluminized Steel; 10; 10; Pipe Connection; 3.5; 3.5; Offset; Uses New Hangers (Not Included); Reflection; Pipe Connection; 3.5; 3.5; Offset; 23; Oval; Moderate Sound
Price: $277.95
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Borla ProXS Series Center/Center Muffler (2.5" Tubing, 19" Length)
Borla ProXS Series Center/Center Muffler (2.5" Tubing, 19" Length)
Universal Part | Part #: 40364
Highlights: 4"; 14"; 9.5"; All Welded; Pipe; 2.5"; Center; Single Center; 2.5"; T-304 Stainless Steel; No; No; 2.5"; Center; Single Center Outlet; 19"; Oval
Price: $115.99
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Spec-D Tuning 2.5" Inlet 310 Style Spiral Muffler
Spec-D Tuning 2.5" Inlet 310 Style Spiral Muffler
Universal Part | Part #: MF-SS310

310 STYLE SPIRAL MUFFLER 2.5 INCH INLET

Price: $44.95
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Fleece Performance Stack Cover - 5 inch - 45 Degree Miter
Fleece Performance Stack Cover - 5 inch - 45 Degree Miter
Universal Part | Part #: FPE-STK-CVR-5-45
Highlights: Constructed from heavy duty vinyl; band clamp to ensure a tight fit
Price: $52.95
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Magnaflow 11" Oval Dual/Dual Straight-Through Performance Muffler (2.5" Inlet, 28" Length)
Magnaflow 11" Oval Dual/Dual Straight-Through Performance Muffler (2.5" Inlet, 28" Length)
Universal Part | Part #: 12568

MagnaFlow universal diesel pipes are available for Cummins, Powerstroke and Duramax applications and can accommodate all the needs of a custom exhaust.

Highlights: Satin; 5"; 22"; Stainless Steel; 11"; 2.5"; 2; Dual; Straight-Through; 2.5"; 2; Dual; 28"; Oval
Price: $271.00
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Spec-D Tuning 76mm Catback Exhaust Gasket
Spec-D Tuning 76mm Catback Exhaust Gasket
Universal Part | Part #: FLD-005

CATBACK EXHAUST GASKET 76MM

Highlights: 76mm
Price: $24.95
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Flowmaster 80 Series Muffler - 2.50 Dual In / 2.50 Dual Out - Aggressive Sound
Flowmaster 80 Series Muffler - 2.50 Dual In / 2.50 Dual Out - Aggressive Sound
Universal Part | Part #: 42582

Fits 1967 to 1974 Chevrolet Camaro and Pontiac Firebird.

Highlights: Gray; Aluminized Steel; 90 Months; Aggressive Sound Exterior Exhaust Tone; Cross Flow Applications; The original two chamber design; Noticeable interior resonance; 9.75; 4; 18; Aluminized Steel; 9.8; 9.75; Pipe Connection; 2.5; 2.5; Dual; Uses New Hangers (Not Included); Reflection; Pipe Connection; 2.5; 2.5; Dual; 24; Oval; Aggressive Sound
Price: $255.95
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Flowmaster 40 Delta Muffler 409S - 2.50 Offset In / 2.50 Offset Out - Aggressive Sound
Flowmaster 40 Delta Muffler 409S - 2.50 Offset In / 2.50 Offset Out - Aggressive Sound
Universal Part | Part #: 842543
Highlights: Gray; Stainless Steel; Lifetime Limited Warranty; Durable fully welded 409 stainless steel; No internal packing to blowout; Excellent Street/Strip and Off Road application; Race proven patented Delta Flow technology; 2.5; 4; 13; Stainless Steel; 9.8; 9.75; Pipe Connection; 2.5; 2.5; Offset; Uses New Hangers (Not Included); Reflection; Pipe Connection; 2.5; 2.5; Offset; 19; Oval; Aggressive Sound
Price: $168.95
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Flowmaster Alcohol Race Muffler - 3.50 Offset In / 3.00 Same Side Out - Aggressive Sound
Flowmaster Alcohol Race Muffler - 3.50 Offset In / 3.00 Same Side Out - Aggressive Sound
Universal Part | Part #: 53545-10
Highlights: Gray; Aluminized Steel; Lifetime Limited Warranty; Durable fully welded 16 gauge aluminized steel - two chamber race muffler; Race proven patented Delta Flow technology; No internal packing to blowout; Good decibel reduction over open headers; 12; 5; 13.5; Aluminized Steel; 10; 10; Pipe Connection; 3.5; 3.5; Offset; Uses New Hangers (Not Included); Reflection; Pipe Connection; 3; 3; Same Side; 22; Oval; Aggressive Sound
Price: $128.95
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Magnaflow Stainless Steel Round Rolled Edge Angle Cut Weld-On Dual Polished Exhaust Tip (2.25" Inlet, 3" Outlet, 10" Length)
Magnaflow Stainless Steel Round Rolled Edge Angle Cut Weld-On Dual Polished Exhaust Tip (2.25" Inlet, 3" Outlet, 10" Length)
Universal Part | Part #: 35168

MagnaFlow Custom weld on tips come in many sizes and styles completing most any exhasut system with the just the right finishing touch.

Highlights: Polished; Weld-On; Angle; Rolled; 2.25"; 3"; 2; 10"; No; Round; Single
Price: $122.00
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Borla XR-1 Series Sportsman Center/Center Oval Muffler (3" Diameter, 21" Length)
Borla XR-1 Series Sportsman Center/Center Oval Muffler (3" Diameter, 21" Length)
Universal Part | Part #: 40944
Highlights: 7.88"; 16"; 4.5"; All Welded; Pipe; 3"; Center; Single Center; 3"; T-304 Stainless Steel; No; No; 3"; Center; Single Center Outlet; 21"; Oval
Price: $165.99
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Magnaflow Stainless Steel Round Angle Cut Rolled Edge Single Wall Clamp-On Polished Exhaust Tip (5" Inlet, 6" Outlet, 13"Length)
Magnaflow Stainless Steel Round Angle Cut Rolled Edge Single Wall Clamp-On Polished Exhaust Tip (5" Inlet, 6" Outlet, 13"Length)
Universal Part | Part #: 35215

MagnaFlow Custom weld on tips come in many sizes and styles completing most any exhasut system with the just the right finishing touch.

Highlights: Polished; Clamp-On; Angle; Rolled; 5"; 6"; 1; 13"; No; Round; Single
Price: $145.00
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Spec-D Tuning 5" Inlet - 8" Outlet Black Muffler Tip
Spec-D Tuning 5" Inlet - 8" Outlet Black Muffler Tip
Universal Part | Part #: MF-TP0508D-BS-TD

EXHAUST TIP- 5 inch INLET, 8 inch OUTLET

Price: $56.95
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Spec-D Tuning 2.5" Inlet B Style Muffler With 3.75" Blue Tip
Spec-D Tuning 2.5" Inlet B Style Muffler With 3.75" Blue Tip
Universal Part | Part #: MF-TPA002BT

UNIVERSAL MUFFLER TIP- B STYLE - BLUE 2.5 INLET 3.75 OUTLET

Price: $68.95
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Flowmaster 40 Delta Flow Muffler - 3.00 Center In / 2.50 Dual Out - Aggressive Sound
Flowmaster 40 Delta Flow Muffler - 3.00 Center In / 2.50 Dual Out - Aggressive Sound
Universal Part | Part #: 9430402
Highlights: Gray; Aluminized Steel; 90 Months; Durable fully welded 16 gauge aluminized steel; No internal packing to blowout; Excellent Street/Strip and Off Road application; Race proven patented Delta Flow technology; 9.75; 4; 13; Aluminized Steel; 9.8; 9.75; Pipe Connection; 3; 3; Center; Center; Uses New Hangers (Not Included); Reflection; Pipe Connection; 2.5; 2.5; Dual; 19; Oval; Aggressive Sound
Price: $153.95
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Flowmaster 40 Delta Flow Muffler - 2.25 Offset In / 2.25 Center Out - Aggressive Sound
Flowmaster 40 Delta Flow Muffler - 2.25 Offset In / 2.25 Center Out - Aggressive Sound
Universal Part | Part #: 942441
Highlights: Gray; Aluminized Steel; 90 Months; Durable fully welded 16 gauge aluminized steel; No internal packing to blowout; Excellent Street/Strip and Off Road application; Race proven patented Delta Flow technology; 2.25; 4; 13; Aluminized Steel; 9.8; 9.75; Pipe Connection; 2.25; 2.25; Offset; Uses New Hangers (Not Included); Reflection; Pipe Connection; 2.25; 2.3; Center; Center; 19; Oval; Aggressive Sound
Price: $153.95
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Showing 253 to 270 of 1921 (107 Pages)
Showing 253 to 270 of 1921 (107 Pages)
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