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Audi A4 Performance Parts & Upgrades

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Lightweight Underdrive Crank Pulley Kit - Silver

ES#6140 - 06F198002SLV - Lightweight Underdrive Crank Pulley Kit - Silver - Bolt on way to reclaim lost horsepower - ECS - Audi

Bolt on way to reclaim lost horsepower 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
6140
Mfg#:
06F198002SLV
In Stock
ON SALE! SAVE 10%
$194.99

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

$175.49 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

AWE Touring Edition Exhaust System - Audi B8/B8.5 A4 2.0T

ES#4726274 - AWEB8A420TR - AWE Touring Edition Exhaust System - Audi B8/B8.5 A4 2.0T - Remarkably civil while idling/part throttle cruising, but unleashed at full throttle produces what some have called a war-cry wail. Features AWE's proprietary 180 Technology resonators. - AWE - Audi

Remarkably civil while idling/part throttle cruising, but unleashed at full throttle produces what some have called a “war-cry wail.” Features AWE's proprietary 180 Technology® resonators. 2X Entries Into Our F80 M3 Sweepstakes

Brand:
AWE - Corporate Logo
ES#:
4726274
Mfg#:
AWEB8A420TR
In Stock
ON SALE!
Starting at $1225.00 USD
Customize
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Billet Aluminum Oil Filter Housing With Removal Tool - Black Anodized

ES#2730475 - 003602ECS01A02AK - Billet Aluminum Oil Filter Housing With Removal Tool - Black Anodized - Aluminum replacement for plastic OE filter housing with 36mm socket - Assembled By ECS - Audi Volkswagen

Aluminum replacement for plastic OE filter housing with 36mm socket 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
2730475
Mfg#:
003602ECS01A02AK
In Stock
ON SALE! SAVE 13%
$175.99

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

$152.98 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

B9 A4/S4 Carbon Fiber Inlet Scoop

ES#3537354 - 024641ecs02KT - B9 A4/S4 Carbon Fiber Inlet Scoop - Channel air to your intake with performance syle! - ECS - Audi

Channel air to your intake with performance syle! 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
3537354
Mfg#:
024641ECS02KT
Ships on Feb 12, 2027
ON SALE! SAVE 10%
$271.61

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

$244.45 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

X34 Carbon Fiber Air Scoop - Large Intercooler Size

ES#4845335 - 034-108-Z134 - X34 Carbon Fiber Air Scoop - Large Intercooler Size - Increase airflow for your 2.0T or 3.0T equipped B9 A4/S4/Allroad with the 034Motorsport X34 Carbon Fiber Intake Air Scoop! - 034Motorsport - Audi

Increase airflow for your 2.0T or 3.0T equipped B9 A4/S4/Allroad with the 034Motorsport X34 Carbon Fiber Intake Air Scoop! 2X Entries Into Our F80 M3 Sweepstakes
Will not fit vehicles with the active grille shutter system, such as B9.5 A4 and allroad.

Brand:
034Motorsport - Corporate Logo
ES#:
4845335
Mfg#:
034-108-Z134
In Stock
$174.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Performance Kevlar Reinforced Accessory Belt - Alternator

ES#3677911 - 06B903137E - Performance Kevlar Reinforced Accessory Belt - Alternator - Our Red Kevlar accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. - ECS - Audi Volkswagen
ECS Tuning recommends this product.

Our Red Kevlar accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
3677911
Mfg#:
06B903137E
Ships on Nov 12, 2026
$44.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Stage 2 Clutch Kit - Daily

ES#3106541 - k70614hdoKT - Stage 2 Clutch Kit - Daily - Designed for the daily-driven, weekend track warrior - Rated at 375 ft/lbs - South Bend Clutch - Audi

Designed for the daily-driven, weekend track warrior - Rated at 375 ft/lbs For use with LUK factory or South Bend SBCF70614 flywheels
Does not include flywheel

Brand:
South Bend Clutch - Corporate Logo
ES#:
3106541
Mfg#:
K70614HDOKT
Ships on Oct 7, 2026
$1212.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Billet Aluminum Single-Mass Lightweight Flywheel

ES#3998857 - 034-503-1020 - Billet Aluminum Single-Mass Lightweight Flywheel - Weighing in at 12 lbs, allows for faster revving and easier rev matching when downshifting. - 034Motorsport - Audi

Weighing in at 12 lbs, allows for faster revving and easier rev matching when downshifting. 2X Entries Into Our F80 M3 Sweepstakes
*For use with Audi B7 RS4 Clutch Kit - ES2550660*

Brand:
034Motorsport - Corporate Logo
ES#:
3998857
Mfg#:
034-503-1020
Ships in 2 Business Days
$605.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

EMD Auto 15mm Wheel Spacers - Pair (With Bolts)

ES#4430400 - EMD-SPACER-15-66 - EMD Auto 15mm Wheel Spacers - Pair (With Bolts) - Manufactured out of high quality 6061-T6 aluminum, and black anodized for corrosion resistance - 5x112, 66.5 Center Bore - Emmanuele Design - Audi

Manufactured out of high quality 6061-T6 aluminum, and black anodized for corrosion resistance - 5x112, 66.5 Center Bore Fits most aftermarket wheels that use conical seat wheel bolts

Brand:
Emmanuele Design - Corporate Logo
ES#:
4430400
Mfg#:
EMD-SPACER-15-66
Ships on Oct 6, 2026
$110.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

CTS Street Sport Engine Mount Kit

ES#4140455 - cts-em-b8-50dKT - CTS Street Sport Engine Mount Kit - 50 Durometer rubber construction - Set of two mounts for left and right sides - CTS - Audi

50 Durometer rubber construction - Set of two mounts for left and right sides

Brand:
CTS - Corporate Logo
ES#:
4140455
Mfg#:
CTS-EM-B8-50DKT
Ships in 7 Business Days
$399.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ECS Wheel Spacer & Bolt Kit - 7mm With Black Ball Seat Bolts

ES#2748187 - ECS10611KTWB1 - ECS Wheel Spacer & Bolt Kit - 7mm With Black Ball Seat Bolts - Includes everything you need to install spacers on two wheels - ECS - Audi Volkswagen

Includes everything you need to install spacers on two wheels 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#:
2748187
Mfg#:
ECS10611KTWB1
In Stock
ON SALE! SAVE 25%
$132.99

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

$99.74 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

BR Series Coilover Suspension Kit

ES#3521684 - S-01-BR - BR Series Coilover Suspension Kit - Featuring 30 levels of adjustment and performance spring rates and valving - BC Racing - Audi

Featuring 30 levels of adjustment and performance spring rates and valving

Brand:
BC Racing - Corporate Logo
ES#:
3521684
Mfg#:
S-01-BR
Ships in 5 Business Days
$1195.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

BR Series Coilover Suspension Kit - B9 Audi A4/S4

ES#4424819 - S-27-BR - BR Series Coilover Suspension Kit - B9 Audi A4/S4 - Featuring 30 levels of adjustment and performance spring rates and valving that makes the BR Series perfect for both daily drivers and track warriors! - BC Racing - Audi

Featuring 30 levels of adjustment and performance spring rates and valving that makes the BR Series perfect for both daily drivers and track warriors! For vehicles with production date up to 7/11/2016 with 53mm front strut body without factory Electronic Damping Control.

Brand:
BC Racing - Corporate Logo
ES#:
4424819
Mfg#:
S-27-BR
Back Ordered
$1195.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Eibach SportLine Performance Springs

ES#4140197 - E20-15-023-03-22 - Eibach SportLine Performance Springs - High performance handling & aggressive looks - Average lowering of 1.8" front and 1.6" rear - Eibach - Audi

High performance handling & aggressive looks - Average lowering of 1.8" front and 1.6" rear

Brand:
Eibach - Corporate Logo
ES#:
4140197
Mfg#:
E20-15-023-03-22
In Stock at Vendor
10% off MSRP

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

$439.99

This product was last offered at the strikethrough price on
09-20-2026

$395.00 USD
Free Shipping
on orders $49 and up

Seibon ER-Style Carbon Fiber Hood

ES#3010194 - HD9601AUA4ER - Seibon ER-Style Carbon Fiber Hood - Add style and remove weight from the front end of your Audi! - Seibon - Audi

Add style and remove weight from the front end of your Audi!

Brand:
Seibon - Corporate Logo
ES#:
3010194
Mfg#:
HD9601AUA4ER
Special Order: No Guaranteed ETA
$1181.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Rear Sway Bar - 25.4mm

ES#3183689 - MRS-AU-1991 - Rear Sway Bar - 25.4mm - Reduce body roll and increase handling! - Megan Racing - Audi

Reduce body roll and increase handling!

Brand:
Megan Racing - Corporate Logo
ES#:
3183689
Mfg#:
MRS-AU-1991
Ships on Oct 27, 2026
$168.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

More About Performance Parts & Upgrades

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