2015 Audi S4 Exhaust Systems

2015 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 1926 Exhaust Systems available for your 2015 S4 all priced at lowest possible price backed by FREE SHIPPING. 

We price match competitors ... Shop with confidence. 


Showing of 1926 Products
Sort By

Flowmaster 40 Series Muffler - 2.50 Offset In / 2.50 Offset Out - Aggressive Sound
Flowmaster 40 Series Muffler - 2.50 Offset In / 2.50 Offset Out - Aggressive Sound
Universal Part | Part #: 42543
Highlights: Gray; Aluminized Steel; 90 Months; Durable fully welded 16 gauge aluminized steel; Excellent Street/Strip and Off Road application; Noticeable interior resonance; Aggressive Sound Exterior Exhaust Tone; 2.5; 4; 13; Aluminized 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: $101.95
Free Shipping
Borla Specialty Series Transverse Muffler (2.5" Inlet, Dual 2.5" Outlet Tubing, 24" Length)
Borla Specialty Series Transverse Muffler (2.5" Inlet, Dual 2.5" Outlet Tubing, 24" Length)
Universal Part | Part #: 40477
Highlights: 5.5"; 19"; 10.25"; All Welded; Pipe; 2.5"; Offset; Single Offset; 2.5"; T-304 Stainless Steel; No; 2.5"; Offset; Dual Outlet; 24"; Oval
Price: $336.99
Free Shipping
Gibson Stainless Steel Rectangular Clamp-On Black Ceramic Sport Exhaust Tip (2.5" Inlet, 6 x 2.75" Outlet, 9.5" Length)
Gibson Stainless Steel Rectangular Clamp-On Black Ceramic Sport Exhaust Tip (2.5" Inlet, 6 x 2.75" Outlet, 9.5" Length)
Universal Part | Part #: 500432-B
Highlights: Stainless Steel; Single; Black Ceramic; Sport; Rectangular; Clamp-On; Center; 2.5"; 6 x 2.75"; 9.5"
Price: $122.95
Free Shipping
Borla XR-1 Series Sportsman Center/Center Round Muffler (3" Diameter, 2" Length)
Borla XR-1 Series Sportsman Center/Center Round Muffler (3" Diameter, 2" Length)
Universal Part | Part #: 40085
Highlights: 5"; 15"; 5"; All Welded; Pipe; 3"; Center; Single Center; 3"; T-304 Stainless Steel; No; No; 3"; Center; Single Center Outlet; 2"; Round
Price: $146.99
Free Shipping
Flowmaster Super 44 Series Muffler - 2.50 Offset In / 2.50 Center Out - Aggressive Sound
Flowmaster Super 44 Series Muffler - 2.50 Offset In / 2.50 Center Out - Aggressive Sound
Universal Part | Part #: 842546
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; 2.5; 2.5; Offset; Uses New Hangers (Not Included); Reflection; Pipe Connection; 2.5; 2.5; Center; Center; 19; Oval; Aggressive Sound
Price: $142.95
Free Shipping
Flowmaster Scavenger Y Collector 2.5in/3.5in
Flowmaster Scavenger Y Collector 2.5in/3.5in
Universal Part | Part #: Y250350
Highlights: Gray; Aluminized Steel; 90 Months; Durable fully welded 16 gauge aluminized steel; Race application for single exhaust system; Excellent for 2 into 1 exhaust system configuration; Patented D-Port technology; 17.5; No; No; Weld-On; 2.5; 2.5; 2; 16; Weld-On; 3.5; 3.5; 1
Price: $92.20
Free Shipping
Flowmaster U-Fit Dual Exhaust Kit - 3.00 in. - Universal 16-piece pipes only
Flowmaster U-Fit Dual Exhaust Kit - 3.00 in. - Universal 16-piece pipes only
Universal Part | Part #: 15937
Highlights: Gray; Aluminized Steel; 90 Months; Mandrel bent 16 Gauge Tubing; Slip fit connectors for easy assembly; Over the axle pipe with optional tailpipe exit; Front adapter pipes/intermediate pipe/h-pipe; 16; Uses New Hangers (Not Included); 3; 3; Pipe Kit; 3; Round; Straight Cut; 3
Price: $530.95
Free Shipping
Flowmaster Catalytic Converter - Universal - 225 Series - 2.50 in. Inlet/Outlet - 49 State
Flowmaster Catalytic Converter - Universal - 225 Series - 2.50 in. Inlet/Outlet - 49 State
Universal Part | Part #: 2250225

Universal Catalytic Converter Call Customer Service for fitment details

Highlights: Stainless Steel; 3-Way; 12 Months; Universal Fitment (Will Require Welding and Cutting); Excellent flow characteristics; Stainless Steel Construction; Available for a wide variety of applications; Engineered to keep the "MIL" light off; No; Oval; 6.1; 6.125; No; No; Yes; Yes; Slip-Fit; 2.5; 2.5; 1; 5.9L; 6515; Slip-Fit; 2.5; 2.5; 1; None; Ceramic
Price: $173.95
Free Shipping
Flowmaster Outlaw Series Race Muffler - short 5.00 Center In / 5.00 Center Out -Aggressive
Flowmaster Outlaw Series Race Muffler - short 5.00 Center In / 5.00 Center Out -Aggressive
Universal Part | Part #: 15450S
Highlights: Gray; Aluminized Steel; Lifetime Limited Warranty; Durable fully welded 16 gauge aluminized steel - round case allows install in limited space applications; No internal packing to blowout; Minimal decibel reduction - race application where muffler rules are in effect; Designed for maximum horsepower and torque; 6; 6; 7; Aluminized Steel; 6; 6; Pipe Connection; 5; 5; Center; Center; Uses New Hangers (Not Included); Reflection; Pipe Connection; 5; Center; 5; Center; 12; Round Case; Aggressive Sound
Price: $153.95
Free Shipping
Flowmaster 40 Series Muffler 409S - 2.50 Offset In / 2.50 Center Out - Aggressive Sound
Flowmaster 40 Series Muffler 409S - 2.50 Offset In / 2.50 Center Out - Aggressive Sound
Universal Part | Part #: 8042541
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; 2.5; 2.5; Offset; Uses New Hangers (Not Included); Reflection; Pipe Connection; 2.5; 2.5; Center; Center; 19; Oval; Aggressive Sound
Price: $138.95
Free Shipping
Flowmaster Catalytic Converter - Universal - 223 Series - 2.25 in. Inlet/Outlet - 49 State
Flowmaster Catalytic Converter - Universal - 223 Series - 2.25 in. Inlet/Outlet - 49 State
Universal Part | Part #: 2230124

Universal Catalytic Converter Call Customer Service for fitment details

Highlights: Stainless Steel; 3-Way; 12 Months; Universal Fitment (Will Require Welding and Cutting); Excellent flow characteristics; Stainless Steel Construction; Available for a wide variety of applications; Engineered to keep the "MIL" light off; No; 10.5; Round; 4; 4; No; No; No; No; Slip-Fit; 2.25; 2.25; 1; 5.9L; 6000; Slip-Fit; 2.25; 2.25; 1; None; Ceramic
Price: $149.95
Free Shipping
Spec-D Tuning 3" Stainless Steel with Carbon Fiber Covered Round Angle Cut Tip
Spec-D Tuning 3" Stainless Steel with Carbon Fiber Covered Round Angle Cut Tip
Universal Part | Part #: MF-TP003CF
Price: $57.95
Free Shipping
Flowmaster Super 40 Muffler - 2.50 Center In / 2.50 Offset Out - Aggressive Sound
Flowmaster Super 40 Muffler - 2.50 Center In / 2.50 Offset Out - Aggressive Sound
Universal Part | Part #: 952547
Highlights: Black; Aluminized Steel; 90 Months; Deep Aggressive Sound Exhaust Note; Race proven patented Delta Flow technology; Excellent performance on high horsepower vehicles; Noticeable interior resonance; 10; 5; 13.5; Aluminized Steel; 10; 10; Pipe Connection; 2.5; 2.5; Center; Center; Uses New Hangers (Not Included); Reflection; Pipe Connection; 2.5; 2.5; Offset; 19.5; Oval; Aggressive Sound
Price: $153.95
Free Shipping
Fleece Performance Stack Cover - 8 inch - Straigh Cut
Fleece Performance Stack Cover - 8 inch - Straigh Cut
Universal Part | Part #: FPE-STK-CVR-8-S
Highlights: Constructed from heavy duty vinyl; band clamp to ensure a tight fit
Price: $56.95
Free Shipping
Magnaflow Stainless Steel Round Angle Cut Rolled Edge Single Wall Clamp-On Polished Exhaust Tip (3.5" Inlet, 5" Outlet, 14.5"Length)
Magnaflow Stainless Steel Round Angle Cut Rolled Edge Single Wall Clamp-On Polished Exhaust Tip (3.5" Inlet, 5" Outlet, 14.5"Length)
Universal Part | Part #: 35213

MagnaFlow Custom Clamp on tips are sized for specific tailpipe diameters completing most any exhasut system with the just the right finishing touch.

Highlights: Polished; Clamp-On; Angle; Rolled; 3.5"; 5"; 1; 14.5"; No; Round; Single
Price: $169.00
Free Shipping
Flowmaster Super 50 Muffler - 2.50 Center In / 2.50 Offset Out - Mild Sound
Flowmaster Super 50 Muffler - 2.50 Center In / 2.50 Offset Out - Mild Sound
Universal Part | Part #: 52557
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; 2.5; 2.5; Center; Center; Uses New Hangers (Not Included); Reflection; Pipe Connection; 2.5; 2.5; Offset; 23; Oval; Mild Sound
Price: $204.95
Free Shipping
Magnaflow 4" Round Center/Center Straight-Through Performance Muffler (2.5" Inlet, 20" Length)
Magnaflow 4" Round Center/Center Straight-Through Performance Muffler (2.5" Inlet, 20" Length)
Universal Part | Part #: 10416

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; 4"; 2.5"; 1; Center; Straight-Through; 2.5"; 1; Center; 20"; Round
Price: $107.95
Free Shipping
Flowmaster 70 Series Muffler - 3.00 Offset In / 3.00 Center Out - Mild Sound
Flowmaster 70 Series Muffler - 3.00 Offset In / 3.00 Center Out - Mild Sound
Universal Part | Part #: 53071
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; Offset; Uses New Hangers (Not Included); Reflection; Pipe Connection; 3; 3; Center; Center; 28; Oval; Mild Sound
Price: $249.95
Free Shipping
Showing 73 to 90 of 1926 (107 Pages)
Showing 73 to 90 of 1926 (107 Pages)

Recently Viewed

Hawk DTC-70 Universal Motorsports Brake Pads
Visa Mastercard American Express Discover Paypal Google Pay Apple Pay