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Audi B9 S4 Quattro 3.0T

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Audi B9 S4 Quattro 3.0T Most Popular Parts

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19" Apex VS-5RS Wheels - Square Set Of Four

ES#4699730 - vs5rs199525qbcKT - 19" Apex VS-5RS Wheels - Square Set Of Four - Forged 19x9.5" ET25 5X112 - Brushed Clear - APEX Wheels - Audi

Forged 19x9.5" ET25 5X112 - Brushed Clear 2X Entries Into Our F80 M3 Sweepstakes

Brand:
APEX Wheels - Corporate Logo
ES#:
4699730
Mfg#:
VS5RS199525QBCKT
Ships in 5 Business Days
$3756.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Cat-Back Exhaust - Resonated

2.50" stainless steel with your choice of tip style

Brand:
Milltek Sport - Corporate Logo
ES#:
4164540
Mfg#:
B9RESONATED
Ships on Oct 30, 2026
Starting at $3463.00 USD
Customize
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Cat-Back Exhaust System - Resonated With Exhaust Valves

ES#3240918 - SSXAU641 - Cat-Back Exhaust System - Resonated With Exhaust Valves - 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 without factory rear sports differential
For vehicles without a sport differential

Brand:
Milltek Sport - Corporate Logo
ES#:
3240918
Mfg#:
SSXAU641
Ships on Oct 30, 2026
$3752.99

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

$3752.49 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Rear BSD Blade Brake Rotors - Pair (330x22)

ES#4213518 - BSD1846 - Rear BSD Blade Brake Rotors - Pair (330x22) - Upgrade to the uniquely created blade slot designed for improved braking - EBC - Audi

Upgrade to the uniquely created blade slot designed for improved braking 2X Entries Into Our F80 M3 Sweepstakes

Brand:
EBC - Corporate Logo
ES#:
4213518
Mfg#:
BSD1846
In Stock
5% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$436.99

This product was last offered at the strikethrough price on
10-09-2026

$414.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Audi Thrust Arm Monoball Upgrade Kit - Front Lower, Inner

ES#4389692 - 006418la01KT - Audi Thrust Arm Monoball Upgrade Kit - Front Lower, Inner - Eliminate deflection caused by stock rubber bushings! - ECS - Audi

Eliminate deflection caused by stock rubber bushings! 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
4389692
Mfg#:
006418LA01KT
In Stock
ON SALE! SAVE 15%
$438.99

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

$373.14 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front Performance Brake Service Kit - 2-piece

ES#4057317 - 023938ecs02KT2 - Front Performance Brake Service Kit - 2-piece - Comprehensive kit includes rotors, pads, sensor, and set screws - Upgrade your brake system with ECS 2-piece rotors and EBC Yellow Brake Pads! - Assembled By ECS - Audi

Comprehensive kit includes rotors, pads, sensor, and set screws - Upgrade your brake system with ECS 2-piece rotors and EBC Yellow Brake Pads! 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
4057317
Mfg#:
023938ECS02KT2
In Stock
ON SALE!
$1286.99

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

$1243.74 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Axle Oil - 1 Liter

ES#465421 - G055190A2 - Axle Oil - 1 Liter - Genuine Volkswagen Audi - Audi

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
465421
Mfg#:
G055190A2
In Stock
$52.49 USD
Free Shipping
on orders $49 and up

Audi B9 Carbon Fiber Antenna Cover

ES#3468626 - 024985ECS01 - Audi B9 Carbon Fiber Antenna Cover - Add a unique, lightweight look to your B9 - ECS - Audi

Add a unique, lightweight look to your B9 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
3468626
Mfg#:
024985ECS01
In Stock
ON SALE! SAVE 20%
$100.99

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

$80.79 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Specific 508.00 / 509.00 Engine Oil (0W-20) - 1 Liter

ES#3506432 - 107385 - Specific 508.00 / 509.00 Engine Oil (0W-20) - 1 Liter - 100% synthetic lubricant - Fuel Economy & High performance - specially designed for latest generaton of VAG group gasoline and diesel engines requiring an approval VW 508 00 509 00 lubricant. - Motul - Audi Volkswagen

100% synthetic lubricant - Fuel Economy & High performance - specially designed for latest generaton of VAG group gasoline and diesel engines requiring an approval VW 508 00 509 00 lubricant.

Brand:
Motul - Corporate Logo
ES#:
3506432
Mfg#:
107385
Ships in 3 Business Days
9% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$22.99

This product was last offered at the strikethrough price on
10-09-2026

$20.99 USD
Free Shipping
on orders $49 and up

Front ISWEEP Brake Pads - RS 3 8Y/S4/S5/RS 5/SQ5 B9

ES#5433241 - IS.XXX.RR1553 - Front ISWEEP Brake Pads - RS 3 8Y/S4/S5/RS 5/SQ5 B9 - From low-dust daily driving to full race endurance, iSWEEP brake pads deliver precision-tuned compounds that give you the exact bite, control, and fade resistance your driving demands. - iSWEEP - Audi

From low-dust daily driving to full race endurance, iSWEEP brake pads deliver precision-tuned compounds that give you the exact bite, control, and fade resistance your driving demands.

Brand:
iSWEEP - Corporate Logo
ES#:
5433241
Mfg#:
IS.XXX.RR1553
In Stock
Starting at $230.00 USD
Customize
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

21" ZTF-R01 Forged Wheels - Set Of Four

ES#4732756 - 034-604-0010KT - 21" ZTF-R01 Forged Wheels - Set Of Four - 21"x10" ET32 5x112 - Anthracite Grey - 034Motorsport - Audi

21"x10" ET32 5x112 - Anthracite Grey 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
4732756
Mfg#:
034-604-0010KT
Back Ordered
$3676.00 USD
This product is lifetime replacement eligible Lifetime Replacement

Unitronic Performance Software - Stage 1+ - With UniCONNECT+ Cable

ES#4375901 - 30T-EA839-1+-UC - Unitronic Performance Software - Stage 1+ - With UniCONNECT+ Cable - Gain up to 100 horsepower and 112 lb-ft of torque on 93 Octane - Unitronic - Audi

Gain up to 100 horsepower and 112 lb-ft of torque on 93 Octane This tune can be performed at home with the included UniCONNECT+ cable. Only available for purchase in th

Brand:
Unitronic - Corporate Logo
ES#:
4375901
Mfg#:
30T-EA839-1+-UC
In Stock
ON SALE! SAVE 14%
$1064.99

This product was last offered at the strikethrough price on
09-28-2026

$914.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear Differential Service Kit

ES#4620706 - G055190A2-2KT - Rear Differential Service Kit - Complete kit with Genuine fluids and drain plugs to service your rear differential - Genuine Volkswagen Audi - Audi

Complete kit with Genuine fluids and drain plugs to service your rear differential for vehicles without sport diff

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4620706
Mfg#:
G055190A2-2KT
In Stock
$59.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Air Filter

ES#3180947 - 8W0133843 - Air Filter - Keep clean air running through your engine - Genuine Volkswagen Audi - Audi

Keep clean air running through your engine

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3180947
Mfg#:
8W0133843
In Stock
8% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$42.16

This product was last offered at the strikethrough price on
10-09-2026

$38.88 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Audi B7/B8/B9/8V Modular No Holes License Plate/Tow Hook/Camera Mount System

ES#3614251 - 001912C0116A - Audi B7/B8/B9/8V Modular No Holes License Plate/Tow Hook/Camera Mount System - Everything a Euro-enthusiast desires from your factory tow hook mount! Modular system with attachments: ultra-strong tow hook, adjustable license plate bracket, dynamic camera mount. - ECS - Audi

Everything a Euro-enthusiast desires from your factory tow hook mount! Modular system with attachments: ultra-strong tow hook, adjustable license plate bracket, dynamic camera mount. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
3614251
Mfg#:
001912C0116A
Ships on Feb 19, 2027
Starting at $56.99 USD
Customize
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

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