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Audi S4 Performance Parts & Upgrades

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Brake Pad Guide Kit

ES#4317662 - 4M0698231A - Brake Pad Guide Kit - Hardware required to install new front pads. - Genuine Volkswagen Audi - Audi

Hardware required to install new front pads.

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4317662
Mfg#:
4M0698231A
In Stock
24% off MSRP

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

$30.26

This product was last offered at the strikethrough price on
10-22-2026

$23.13 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Wheel Spacer & Bolt Kit - 12.5mm With Conical Seat Bolts

ES#2603078 - 002411ECS02AKT4 - Wheel Spacer & Bolt Kit - 12.5mm With Conical Seat Bolts - Complete kit for two wheels, comes with everything you need to install spacers on your aftermarket wheels - ECS - Audi

Complete kit for two wheels, comes with everything you need to install spacers on your aftermarket wheels 10X Entries Into Our F80 M3 Sweepstakes
Fits most aftermarket wheels that use conical seat wheel bolts

Brand:
ECS - Corporate Logo
ES#:
2603078
Mfg#:
002411ECS02AKT4
In Stock
ON SALE! SAVE 25%
$184.99

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

$138.74 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front Big Brake Kit - Stage 2 - Plain Rotors (345x30)

ES#2730474 - 8R0615108EKT2 - Front Big Brake Kit - Stage 2 - Plain Rotors (345x30) - Upgrade your brake system to the 4-piston Brembo Q5 calipers - ECS - Audi

Upgrade your brake system to the 4-piston Brembo Q5 calipers 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
2730474
Mfg#:
8R0615108EKT2
Back Ordered
$1522.99 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Stainless Braided Brake Line Kit

ES#3432300 - 034-303-0008 - Stainless Braided Brake Line Kit - Replace your stock rubber brake hoses with these performance-minded stainless steel braided lines - 034Motorsport - Audi

Replace your stock rubber brake hoses with these performance-minded stainless steel braided lines 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
3432300
Mfg#:
034-303-0008
In Stock
$152.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front Limited Slip Differential

ES#2836967 - 18309170WK - Front Limited Slip Differential - Put all your power to the ground! - Wavetrac - Audi

Put all your power to the ground! For models with 01E 6-Speed manual transmission only

Brand:
Wavetrac - Corporate Logo
ES#:
2836967
Mfg#:
18309170WK
Ships in 2 Business Days
$1515.99 USD
Free Shipping

850 Strapped Series Twin Disc Clutch Kits

ES#4876008 - 02029-TDFR-X - 850 Strapped Series Twin Disc Clutch Kits - Bridge the gap between a single disc clutch and the original FX850 Twin Disc - Clutch Masters - Audi

Bridge the gap between a single disc clutch and the original FX850 Twin Disc Must be used with Clutch Masters Flywheel FW-029-B-TDS

Brand:
Clutch Masters - Corporate Logo
ES#:
4876008
Mfg#:
02029-TDFR-X
Ships in 8 Business Days
$1515.99 USD
Free Shipping

DR Series Wheel Spacers (Black) - 15mm (1 Pair)

ES#2731271 - 3055571SW - DR Series Wheel Spacers (Black) - 15mm (1 Pair) - Fine tune your stance and improve handling - H&R - Audi Volkswagen

Fine tune your stance and improve handling We Price Match - Give Us A Call or Chat!

Brand:
H&R - Corporate Logo
ES#:
2731271
Mfg#:
3055571SW
Ships in 3 Business Days
10% off MSRP

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

$119.99

This product was last offered at the strikethrough price on
10-01-2026

$107.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ECS Wheel Spacers - 8mm (Pair)

ES#2063854 - 002403ECS01A08KT - ECS Wheel Spacers - 8mm (Pair) - Exclusively built for your 57.1mm centerbore VW/Audi - ECS - Audi Volkswagen

Exclusively built for your 57.1mm centerbore VW/Audi 10X Entries Into Our F80 M3 Sweepstakes
Please measure your hub protrusion to ensure it will still make contact with the center of the wheel. See

Brand:
ECS - Corporate Logo
ES#:
2063854
Mfg#:
002403ECS01A08KT
In Stock
ON SALE! SAVE 25%
$95.99

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

$71.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

X34 Carbon Fiber Intake Air Duct

ES#3988147 - 034-108-1024 - X34 Carbon Fiber Intake Air Duct - The perfect companion to the 034Motorsport X34 Carbon Fiber Cold Air Intake System - 034Motorsport - Audi

The perfect companion to the 034Motorsport X34 Carbon Fiber Cold Air Intake System 2X Entries Into Our F80 M3 Sweepstakes
*To be used with 034Motorsport X34 Intake System or most aftermarket intakes that utilize the OEM air duct*

Brand:
034Motorsport - Corporate Logo
ES#:
3988147
Mfg#:
034-108-1024
In Stock
$377.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Density Line Front Sway Bar End Links

ES#4828168 - 034-402-4014 - Density Line Front Sway Bar End Links - Replace your flimsy, imprecise OEM sway bar end links with these performance engineered Density Line Front Sway Bar End Links - 034Motorsport - Audi Volkswagen

Replace your flimsy, imprecise OEM sway bar end links with these performance engineered Density Line Front Sway Bar End Links 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
4828168
Mfg#:
034-402-4014
In Stock
$52.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

OEM Audi 2.9TT/4.0TT Direct Fuel Injector - Priced Each

ES#5397015 - 06m906036aq - OEM Audi 2.9TT/4.0TT Direct Fuel Injector - Priced Each - Maximum Power on Accompanying Stage 3 Tuning - Genuine Volkswagen Audi - Audi

Maximum Power on Accompanying Stage 3 Tuning

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
5397015
Mfg#:
06M906036AQ
In Stock
$277.99

This product was last offered at the strikethrough price on
07-06-2026

$249.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

CTS Turbo Rear Subframe Insert Set

ES#5435532 - HW-561 - CTS Turbo Rear Subframe Insert Set - Lock down your B9 Audi's chassis and eliminate rear subframe flex with CTS Turbos billet aluminum insert set, delivering sharper handling and instant power transfer with minimal NVH. - CTS - Audi

Lock down your B9 Audi's chassis and eliminate rear subframe flex with CTS Turbo’s billet aluminum insert set, delivering sharper handling and instant power transfer with minimal NVH.

Brand:
CTS - Corporate Logo
ES#:
5435532
Mfg#:
HW-561
In Stock
$149.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Audi EA839 3.0T W.1 ECU Tune

ES#4715344 - 05-839-00131-0KT - Audi EA839 3.0T W.1 ECU Tune - Increase of +66 Horsepower, and +111 Torque! Eliminate top speed limiter, Increased throttle response. W.1 Tunes are designed for completely stock vehicles with no other modifications! - Weistec - Audi

Increase of +66 Horsepower, and +111 Torque! Eliminate top speed limiter, Increased throttle response. W.1 Tunes are designed for completely stock vehicles with no other modifications!

Brand:
Weistec - Corporate Logo
ES#:
4715344
Mfg#:
05-839-00131-0KT
Ships in 1 Business Day
$1499.00 USD
This product is lifetime replacement eligible Lifetime Replacement

Stage 4 Clutch Kit W/ Flywheel

ES#2602129 - 02029HDC4KT - Stage 4 Clutch Kit W/ Flywheel - Featuring a 4 puck ceramic disc and 12lb aluminum flywheel - Assembled By ECS - Audi

Featuring a 4 puck ceramic disc and 12lb aluminum flywheel 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
2602129
Mfg#:
02029HDC4KT
Back Ordered
$1499.99

This product was last offered at the strikethrough price on
09-11-2026

$1495.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

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