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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Flowmaster Super 44 Series Muffler 409S - 2.25 Offset In / 2.25 Center Out Aggressive Sound
Flowmaster Super 44 Series Muffler 409S - 2.25 Offset In / 2.25 Center Out Aggressive Sound
Universal Part | Part #: 842446
Highlights: Gray; Stainless Steel; Lifetime Limited Warranty; Deep Aggressive Sound Exhaust Note; Race proven patented Delta Flow technology; Recent two chamber improvement; Noticeable interior resonance; 9.75; 4; 13; Stainless Steel; 9.8; 9.75; Pipe Connection; 2.25; 2.3; Offset; Uses New Hangers (Not Included); Reflection; Pipe Connection; 2.25; 2.3; Center; Center; 19; Oval; Aggressive Sound
Price: $139.95
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Flowmaster 10 Series Race Muffler - 2.50 Center In / 2.50 Center Out - Aggressive Sound
Flowmaster 10 Series Race Muffler - 2.50 Center In / 2.50 Center Out - Aggressive Sound
Universal Part | Part #: 325108
Highlights: Gray; Aluminized Steel; Lifetime Limited Warranty; Durable fully welded 16 gauge aluminized steel - single chamber race muffler; Race proven patented Delta Flow technology; No internal packing to blowout; Minimal decibel reduction over open headers; 3; 5.5; Aluminized Steel; 8; 8; 2.5; 2.5; Center; Center; 2.5; Center; 2.5; Center; Oval; Aggressive Sound
Price: $148.95
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Magnaflow 9" Oval Center/Offset Straight-Through Performance Muffler (2.5" Inlet, 20" Length)
Magnaflow 9" Oval Center/Offset Straight-Through Performance Muffler (2.5" Inlet, 20" Length)
Universal Part | Part #: 11226

Featuring a free-flowing, straight-through perforated stainless steel core, stainless mesh wraps our acoustic fiber fill to deliver a smooth, deep tone for your custom exhuast project

Highlights: Satin; 4"; 14"; Stainless Steel; 9"; 2.5"; 1; Center; Straight-Through; 2.5"; 1; Offset; 20"; Oval
Price: $124.95
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Fleece Performance Stack Cover - 6 inch - 45 Degree Miter
Fleece Performance Stack Cover - 6 inch - 45 Degree Miter
Universal Part | Part #: FPE-STK-CVR-6-45
Highlights: Constructed from heavy duty vinyl; band clamp to ensure a tight fit
Price: $53.95
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Gibson Stainless Steel Clamp-On Turndown Angle Cut Polished Exhaust Tip (3" Inlet, 4" Outlet, 12" Length)
Gibson Stainless Steel Clamp-On Turndown Angle Cut Polished Exhaust Tip (3" Inlet, 4" Outlet, 12" Length)
Universal Part | Part #: 500388
Highlights: Stainless Steel; Single; Polished; Turndown Angle Cut; T304 Stainless Steel; Clamp-On; 3"; 4"; 12"
Price: $85.95
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Flowmaster 70 Series Muffler - 3.00 Center In / 3.00 Offset Out - Mild Sound
Flowmaster 70 Series Muffler - 3.00 Center In / 3.00 Offset Out - Mild Sound
Universal Part | Part #: 53072
Highlights: Gray; Aluminized Steel; 90 Months; Mild to stock exterior exhaust tone; Improved Horsepower, Torque and Engine Efficiency; Recommended for SUV/trucks/motorhomes/tow vehicles; Minimal interior resonance; 5; 5; 22; Aluminized Steel; 10; 10; Pipe Connection; 3; 3; Center; Center; Uses New Hangers (Not Included); Reflection; Pipe Connection; 3; 3; Offset; 28; Oval; Mild Sound
Price: $249.95
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Spec-D Tuning 4.5" Silencer For N1 Muffler
Spec-D Tuning 4.5" Silencer For N1 Muffler
Universal Part | Part #: MF-SR78145

4.5 INCH TIP SILENCER FOR N1 MUFFLER

Highlights: 4.5"
Price: $23.95
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Flowmaster 80 Series Crossflow Muffler, 3.00" IN (O) / OUT (D), 4x9 16 Gauge
Flowmaster 80 Series Crossflow Muffler, 3.00" IN (O) / OUT (D), 4x9 16 Gauge
Universal Part | Part #: 43083

Universal Muffler - Not a direct fit. Some adaptation required.

Highlights: Gray; Aluminized Steel; 90 Months; Aggressive Sound Exterior Exhaust Tone; The original two chamber design; Cross Flow Applications; Noticeable interior resonance; 3; 4; 15; Aluminized Steel; 9.8; 9.75; Pipe Connection; 3; 3; Offset; Uses New Hangers (Not Included); Reflection; Pipe Connection; 2.5; 2.5; Dual; 19; Oval; Aggressive Sound
Price: $185.95
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Flowmaster 40 Series Muffler 409S - 3.00 Offset In / 3.00 Center Out - Aggressive Sound
Flowmaster 40 Series Muffler 409S - 3.00 Offset In / 3.00 Center Out - Aggressive Sound
Universal Part | Part #: 8043041
Highlights: Gray; Stainless Steel; Lifetime Limited Warranty; Durable fully welded 409 stainless steel; Excellent Street/Strip and Off Road application; Noticeable interior resonance; Aggressive Sound Exterior Exhaust Tone; 9.75; 4; 13; Stainless Steel; 9.8; 9.75; Pipe Connection; 3; 3; Offset; Uses New Hangers (Not Included); Reflection; Pipe Connection; 3; 3; Center; Center; 19; Oval; Aggressive Sound
Price: $138.95
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Flowmaster 70 Series Muffler - 2.25 Dual In / 3.00 Center Out - Mild Sound
Flowmaster 70 Series Muffler - 2.25 Dual In / 3.00 Center Out - Mild Sound
Universal Part | Part #: 524703
Highlights: Gray; Aluminized Steel; 90 Months; Mild to stock exterior exhaust tone; Improved Horsepower, Torque and Engine Efficiency; Recommended for SUV/trucks/motorhomes/tow vehicles; Minimal interior resonance; 5; 5; 22; Aluminized Steel; 10; 10; Pipe Connection; 2.25; 2.25; Dual; Uses New Hangers (Not Included); Reflection; Pipe Connection; 3; 3; Center; Center; 28; Oval; Mild Sound
Price: $249.95
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Gibson MWA Superflow Stainless Steel Oval Exhaust Muffler (Inlet 3", Outlet 2.5", Length 20")
Gibson MWA Superflow Stainless Steel Oval Exhaust Muffler (Inlet 3", Outlet 2.5", Length 20")
Universal Part | Part #: BM0109
Highlights: Stainless Steel; Center / Dual; 3"; 2.5"; 4"; 9"; 14"; 20"; Oval; Dual
Price: $101.95
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Flowmaster Super 50 Muffler - 3.00 Offset In / 3.00 Center Out - Mild Sound
Flowmaster Super 50 Muffler - 3.00 Offset In / 3.00 Center Out - Mild Sound
Universal Part | Part #: 53056
Highlights: Gray; Aluminized Steel; 90 Months; Mild to stock exterior exhaust tone; Improved Horsepower, Torque and Engine Efficiency; Excellent choice for large displacement vehicles; Minimal interior resonance; 10; 5; 17; Aluminized Steel; 10; 10; Pipe Connection; 3; 3; Offset; Uses New Hangers (Not Included); Reflection; Pipe Connection; 3; 3; Center; Center; 23; Oval; Mild Sound
Price: $204.95
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Spec-D Tuning Oval Style Stainless Steel Muffler with Oval Tip
Spec-D Tuning Oval Style Stainless Steel Muffler with Oval Tip
Universal Part | Part #: MF-RS361
Highlights: 2.5"; 5.5" x 2.75"; 12"; 8"; 18"
Price: $45.95
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Gibson MWA Superflow Stainless Steel Oval Exhaust Muffler (Inlet 2.5", Outlet 2.5", Length 20")
Gibson MWA Superflow Stainless Steel Oval Exhaust Muffler (Inlet 2.5", Outlet 2.5", Length 20")
Universal Part | Part #: BM0107
Highlights: Stainless Steel; Center / Center; 2.5"; 2.5"; 4"; 9"; 14"; 20"; Oval; Single
Price: $118.95
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Flowmaster 50 Delta Muffler 409S - 2.25 Center In / 2.25 Offset Out - Moderate Sound
Flowmaster 50 Delta Muffler 409S - 2.25 Center In / 2.25 Offset Out - Moderate Sound
Universal Part | Part #: 842452
Highlights: Gray; Stainless Steel; Lifetime Limited Warranty; Moderate Sound; Improved Horsepower, Torque and Engine Efficiency; Excellent choice for Street Rod cars and trucks; Mild interior resonance; 2.25; 4; 17; Stainless Steel; 9.8; 9.75; Pipe Connection; 2.25; 2.3; Center; Center; Uses New Hangers (Not Included); Reflection; Pipe Connection; 2.25; 2.3; Offset; 23; Oval; Moderate Sound
Price: $188.95
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Magnaflow 9" Oval Center/Center Straight-Through Performance Muffler (3" Inlet, 20" Length)
Magnaflow 9" Oval Center/Center Straight-Through Performance Muffler (3" Inlet, 20" Length)
Universal Part | Part #: 11219

Featuring a free-flowing, straight-through perforated stainless steel core, stainless mesh wraps our acoustic fiber fill to deliver a smooth, deep tone for your custom exhuast project

Highlights: Satin; 4"; 14"; Stainless Steel; 9"; 3"; 1; Center; Straight-Through; 3"; 1; Center; 20"; Oval
Price: $139.00
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Flowmaster 50 Delta Flow Muffler - 3.00 Offset In / 3.00 Offset Out - Moderate Sound
Flowmaster 50 Delta Flow Muffler - 3.00 Offset In / 3.00 Offset Out - Moderate Sound
Universal Part | Part #: 943053
Highlights: Gray; Aluminized Steel; 90 Months; Moderate Sound; Improved Horsepower, Torque and Engine Efficiency; Excellent choice for Street Rod cars and trucks; Mild interior resonance; 3; 4; 17; Aluminized Steel; 9.8; 9.75; Pipe Connection; 3; 3; Offset; Uses New Hangers (Not Included); Reflection; Pipe Connection; 3; 3; Offset; 23; Oval; Moderate Sound
Price: $173.95
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Flowmaster 50 Delta Flow Muffler - 3.00 Center In / 3.00 Offset Out - Moderate Sound
Flowmaster 50 Delta Flow Muffler - 3.00 Center In / 3.00 Offset Out - Moderate Sound
Universal Part | Part #: 943052
Highlights: Gray; Aluminized Steel; 90 Months; Moderate Sound; Improved Horsepower, Torque and Engine Efficiency; Excellent choice for Street Rod cars and trucks; Mild interior resonance; 3; 4; 17; Aluminized Steel; 9.8; 9.75; Pipe Connection; 3; 3; Center; Center; Uses New Hangers (Not Included); Reflection; Pipe Connection; 3; 3; Offset; 23; Oval; Moderate Sound
Price: $173.95
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Showing 127 to 144 of 1921 (107 Pages)
Showing 127 to 144 of 1921 (107 Pages)
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