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Audi B9 S4 Quattro 3.0T Performance Exhaust Parts & Upgrades

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B9 S4/S5 Cat-Back Exhaust System - Non-Resonated (Louder)

ES#3466846 - SSXAU701 - B9 S4/S5 Cat-Back Exhaust System - Non-Resonated (Louder) - 2.50" stainless steel with quad GT-100 cerakote black tips - Milltek Sport - Audi

2.50" stainless steel with quad GT-100 cerakote black tips Fits models with factory rear sports differential

Brand:
Milltek Sport - Corporate Logo
ES#:
3466846
Mfg#:
SSXAU701
Ships on Oct 30, 2026
$3507.99

This product was last offered at the strikethrough price on
08-17-2026

$3507.46 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

2.5" High-Flow Downpipe

ES#3420821 - SSXAU673 - 2.5" High-Flow Downpipe - Featuring Milltek Sport Hi-Flow sports cat, fits with OE and Milltek cat-back systems. - Milltek Sport - Audi

Featuring Milltek Sport Hi-Flow sports cat, fits with OE and Milltek cat-back systems.

Brand:
Milltek Sport - Corporate Logo
ES#:
3420821
Mfg#:
SSXAU673
Ships on Oct 30, 2026
$3374.99

This product was last offered at the strikethrough price on
08-17-2026

$3374.78 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ECS "Ti.22" UNIVERSAL Exhaust Tip - 4.0" Titanium - Burnt Finish - Priced Each

ES#4336426 - 011966LA07-06 - ECS "Ti.22" UNIVERSAL Exhaust Tip - 4.0" Titanium - Burnt Finish - Priced Each - 2.5" Clamp-on Inlet / 4.0" Single Wall, Slant Cut Outlet - ECS - Audi BMW Volkswagen Mercedes Benz MINI Porsche

2.5" Clamp-on Inlet / 4.0" Single Wall, Slant Cut Outlet 10X Entries Into Our F80 M3 Sweepstakes
Not vehicle specific. You MUST measure prior to purchasing!

Brand:
ECS - Corporate Logo
ES#:
4336426
Mfg#:
011966LA07-06
In Stock
ON SALE! SAVE 10%
$199.99

This product was last offered at the strikethrough price on
05-02-2026

$179.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ECS "Ti.22" UNIVERSAL Exhaust Tips - 4.0" Titanium - Burnt Finish - Set of Four

ES#4505621 - 011966LA07-05KT - ECS "Ti.22" UNIVERSAL Exhaust Tips - 4.0" Titanium - Burnt Finish - Set of Four - 2.5" Clamp-on Inlet / 4.0" Single Wall, Slant Cut Outlet - ECS - Audi BMW Volkswagen Mercedes Benz MINI Porsche

2.5" Clamp-on Inlet / 4.0" Single Wall, Slant Cut Outlet 10X Entries Into Our F80 M3 Sweepstakes
Not vehicle specific. You MUST measure prior to purchasing!

Brand:
ECS - Corporate Logo
ES#:
4505621
Mfg#:
011966LA07-05KT
In Stock
ON SALE!
$815.96

This product was last offered at the strikethrough price on
06-13-2026

$791.48 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ECS UNIVERSAL Swivel Exhaust Tip - 4.0" Black Chrome - Priced Each

ES#4423336 - 003358ECS07-02 - ECS UNIVERSAL Swivel Exhaust Tip - 4.0" Black Chrome - Priced Each - Stainless Steel exhaust tip featuring swivel attachment for maximum adjustability. 3.0" Swivel Inlet / 4.0" Double Wall, Slant Cut Outlet - ECS - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Stainless Steel exhaust tip featuring swivel attachment for maximum adjustability. 3.0" Swivel Inlet / 4.0" Double Wall, Slant Cut Outlet 10X Entries Into Our F80 M3 Sweepstakes
Not vehicle specific. You MUST measure prior to purchasing!

Brand:
ECS - Corporate Logo
ES#:
4423336
Mfg#:
003358ECS07-02
In Stock
ON SALE!
$132.99

This product was last offered at the strikethrough price on
06-13-2026

$129.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Audi B9 S4/S5 Sportback 3.0T Valved Exhaust System & Luft-Technik Intake System

ES#4751050 - 026018ECSEBKT - Audi B9 S4/S5 Sportback 3.0T Valved Exhaust System & Luft-Technik Intake System - Improve the sound and performance of your vehicle with a valved catback & Luft-Technik Intake System - Enthusiast Bundles - Audi

Improve the sound and performance of your vehicle with a valved catback & Luft-Technik Intake System Don't See A Bundle You Want - Give Us A Call Or Chat - We Will Make One!

Brand:
Enthusiast Bundles - Corporate Logo
ES#:
4751050
Mfg#:
026018ECSEBKT
Ships on Nov 6, 2026
ON SALE! SAVE 23%
$3293.99

This product was last offered at the strikethrough price on
05-05-2026

$2549.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ARMYTRIX Sport Cat-Pipe - Ceramic Coated

Ceramic Coated Sport Cat-Pipe with 200 CPSI Catalytic Converter - Increase power, reduce weight, and improve sound!

Brand:
Armytrix - Corporate Logo
ES#:
4164586
Mfg#:
AU94S-CDC
Ships on Oct 30, 2026
$2050.00 USD
Free Shipping

ECS UNIVERSAL Swivel Exhaust Tips - 4.0" Carbon Fiber - Pair

ES#4305399 - 004735LA01KT - ECS UNIVERSAL Swivel Exhaust Tips - 4.0" Carbon Fiber - Pair - Carbon Fiber exhaust tips featuring swivel attachment for maximum adjustability. 2.5" Swivel Inlet / 4.0" Double Wall, Slant Cut Outlet - ECS - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Carbon Fiber exhaust tips featuring swivel attachment for maximum adjustability. 2.5" Swivel Inlet / 4.0" Double Wall, Slant Cut Outlet 10X Entries Into Our F80 M3 Sweepstakes
Not vehicle specific. You MUST measure prior to purchasing!

Brand:
ECS - Corporate Logo
ES#:
4305399
Mfg#:
004735LA01KT
In Stock
ON SALE!
$349.99

This product was last offered at the strikethrough price on
06-13-2026

$332.48 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ECS UNIVERSAL Swivel Exhaust Tip - 3.5" Carbon Fiber - Priced Each

ES#4070068 - 004735LA02 - ECS UNIVERSAL Swivel Exhaust Tip - 3.5" Carbon Fiber - Priced Each - Carbon Fiber exhaust tip featuring swivel attachment for maximum adjustability. 2.5" Swivel Inlet / 3.5" Double Wall, Slant Cut Outlet - ECS - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Carbon Fiber exhaust tip featuring swivel attachment for maximum adjustability. 2.5" Swivel Inlet / 3.5" Double Wall, Slant Cut Outlet 10X Entries Into Our F80 M3 Sweepstakes
Not vehicle specific. You MUST measure prior to purchasing!

Brand:
ECS - Corporate Logo
ES#:
4070068
Mfg#:
004735LA02
In Stock
ON SALE! SAVE 12%
$149.99

This product was last offered at the strikethrough price on
05-02-2026

$131.77 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Performance Downpipe Kit - Non-Resonated

ES#3644159 - 777512 - Performance Downpipe Kit - Non-Resonated - T304 Stainless Steel high flow front pipe kit replaces factory secondary catalytic converters - Supersprint - Audi

T304 Stainless Steel high flow front pipe kit replaces factory secondary catalytic converters

Brand:
Supersprint - Corporate Logo
ES#:
3644159
Mfg#:
777512
Ships on Jan 14, 2027
$1664.99 USD
Free Shipping

Audi B9 3.0T S4 S5 Catted Downpipe

ES#4905571 - B930TDPC - Audi B9 3.0T S4 S5 Catted Downpipe - Increased Power and Torque, Massive 6.5" Design, Faster Turbo Spool, and Improved Exhaust Note - ARM Motorsports - Audi

Increased Power and Torque, Massive 6.5" Design, Faster Turbo Spool, and Improved Exhaust Note

Brand:
ARM Motorsports - Corporate Logo
ES#:
4905571
Mfg#:
B930TDPC
Ships in 2 Business Days
$779.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
Scratch and Dent Item

Milltek Sport Cat-Back Exhaust System - Resonated With Exhaust Valves *Scratch And Dent*

ES#4730281 - SSXAU695sd - Milltek Sport Cat-Back Exhaust System - Resonated With Exhaust Valves *Scratch And Dent* - ***Please see photos and description prior to ordering, all sales final.*** 2.50" stainless steel with quad GT-100 Cerakote black tips - Scratch & Dent - Audi

***Please see photos and description prior to ordering, all sales final.*** 2.50" stainless steel with quad GT-100 Cerakote black tips ALL SALES FINAL. ITEMS MAY BE DAMAGED OR MISSING COMPONENTS. PLEASE SEE IMAGES BEFORE PURCHASING. Want To Haggle? Give Us A Call Or Chat To Make An Offer On This Product!

Brand:
Scratch & Dent - Corporate Logo
ES#:
4730281
Mfg#:
SSXAU695SD
In Stock
ON SALE! SAVE 55%
$3283.00

This product was last offered at the strikethrough price on
05-02-2026

$1481.05 USD

ECS "Ti.22" UNIVERSAL Exhaust Tip - 3.5" Titanium - Matte Finish - Priced Each

ES#4336423 - 011966LA07-01 - ECS "Ti.22" UNIVERSAL Exhaust Tip - 3.5" Titanium - Matte Finish - Priced Each - 2.5" Clamp-on Inlet / 3.5" Single Wall, Slant Cut Outlet - ECS - Audi BMW Volkswagen Mercedes Benz MINI Porsche

2.5" Clamp-on Inlet / 3.5" Single Wall, Slant Cut Outlet 10X Entries Into Our F80 M3 Sweepstakes
Not vehicle specific. You MUST measure prior to purchasing!

Brand:
ECS - Corporate Logo
ES#:
4336423
Mfg#:
011966LA07-01
In Stock
ON SALE! SAVE 20%
$199.99

This product was last offered at the strikethrough price on
05-02-2026

$159.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Universal Dual Exhaust Tip - Dual 3" - Pair

ES#2974340 - 35229 - Universal Dual Exhaust Tip - Dual 3" - Pair - Double wall stainless steel. Single 2.25" inlet, Dual 3" outlet. - Magnaflow - Audi Volkswagen

Double wall stainless steel. Single 2.25" inlet, Dual 3" outlet.

Brand:
Magnaflow - Corporate Logo
ES#:
2974340
Mfg#:
35229
Ships in 7 Business Days
$332.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

More About Performance Exhaust Parts & Upgrades

Turn up the volume and add some power with our performance exhaust options for your vehicle.

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