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Audi A4 Performance Parts & Upgrades

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Blow-Off Valve - Black

ES#2748995 - FMFSITATBL - Blow-Off Valve - Black - Stop boost leaking from your diverter valve once and for all! - Forge - Audi Volkswagen

Stop boost leaking from your diverter valve once and for all!

Brand:
Forge - Corporate Logo
ES#:
2748995
Mfg#:
FMFSITATBL
Back Ordered
Auto Notify
$373.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Clutch Kit

ES#1327 - RS4CLUTCHKIT - Clutch Kit - Revive the response & feel of your transmission with an RS4 clutch - Assembled By ECS - Audi Volkswagen

Revive the response & feel of your transmission with an RS4 clutch 10X Entries For Our 25th Anniversary Sweepstakes!
Replacement clutch kit for the RA4 Stage 2 conversion

Brand:
Assembled By ECS - Corporate Logo
ES#:
1327
Mfg#:
RS4CLUTCHKIT
In Stock
ON SALE!
$567.99

This product was last offered at the strikethrough price on
05-20-2026

$527.12 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

V3 Series Coilover Kit - With EDC Deactivation Kit

ES#2619502 - 35210099 - V3 Series Coilover Kit - With EDC Deactivation Kit - The ultimate in coilover technology, featuring double adjustable damping - KW Suspension - Audi

The ultimate in coilover technology, featuring double adjustable damping Fits avant models with factory EDC. Range of lowering is 0.8-1.5" in the front and 0.4-1.5" in the rear.

Brand:
KW Suspension - Corporate Logo
ES#:
2619502
Mfg#:
35210099
Ships in 4 Business Days
$3684.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

V3 Series Coilover Kit - With EDC Deactivation Kit

ES#2619533 - 35210097 - V3 Series Coilover Kit - With EDC Deactivation Kit - The ultimate in coilover technology, featuring double adjustable damping - KW Suspension - Audi

The ultimate in coilover technology, featuring double adjustable damping Fits sedan models with factory EDC. Range of lowering is 0.8-1.5" in the front and 0.4-1.5" in the rear.

Brand:
KW Suspension - Corporate Logo
ES#:
2619533
Mfg#:
35210097
Ships in 4 Business Days
$3684.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

B7 A4 2.0T Cat-Back Exhaust System - Resonated

ES#2827262 - SSXAU049 - B7 A4 2.0T Cat-Back Exhaust System - Resonated - 2.5" stainless steel with dual Jet 100mm polished tips - Milltek Sport - Audi

2.5" stainless steel with dual Jet 100mm polished tips Manual transmission only

Brand:
Milltek Sport - Corporate Logo
ES#:
2827262
Mfg#:
SSXAU049
Ships in 5 Business Days
$1837.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Audi B8 A4 Non S-line Single Exit Rear Diffuser & Trunk Spoiler

ES#4751220 - 029251ECS01EB2KT - Audi B8 A4 Non S-line Single Exit Rear Diffuser & Trunk Spoiler - Add some aggressive styling to your Audi! - Enthusiast Bundles - Audi

Add some aggressive styling to your Audi! Don't See A Bundle You Want - Give Us A Call Or Chat - We Will Make One!

Brand:
Enthusiast Bundles - Corporate Logo
ES#:
4751220
Mfg#:
029251ECS01EB2KT
In Stock
ON SALE! SAVE 26%
$617.99

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

$459.20 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Ball Seat Locking Wheel Bolt Kit

ES#2795753 - 003901ECS45BB - Ball Seat Locking Wheel Bolt Kit - Black zinc coated wheel lock bolts made specifically for OE wheels. M14x1.5x45mm - ECS - Audi Volkswagen

Black zinc coated wheel lock bolts made specifically for OE wheels. M14x1.5x45mm 10X Entries For Our 25th Anniversary Sweepstakes!
For use with 15-17.5mm spacers

Brand:
ECS - Corporate Logo
ES#:
2795753
Mfg#:
003901ECS45BB
In Stock
ON SALE! SAVE 25%
$82.99

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

$62.24 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ECS Wheel Spacers - 5mm (Pair)

ES#250706 - 002403ECS01A05KT - ECS Wheel Spacers - 5mm (Pair) - Exclusively built for your 57.1mm centerbore VW/Audi - ECS - Audi Volkswagen

Exclusively built for your 57.1mm centerbore VW/Audi 10X Entries For Our 25th Anniversary 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#:
250706
Mfg#:
002403ECS01A05KT
In Stock
ON SALE! SAVE 25%
$89.99

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

$67.49 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

X-Clear Driveshaft Tunnel Brace

ES#4381925 - 034-603-0030 - X-Clear Driveshaft Tunnel Brace - Allows for a larger diameter exhaust to be installed without causing excessive rattling or vibration. - 034Motorsport - Audi

Allows for a larger diameter exhaust to be installed without causing excessive rattling or vibration.

Brand:
034Motorsport - Corporate Logo
ES#:
4381925
Mfg#:
034-603-0030
Ships in 2 Business Days
$140.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

EMD Auto 12.5mm Wheel Spacers - Pair (With Bolts)

ES#4042993 - EMDSPACER125665B - EMD Auto 12.5mm 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 OEM wheels, or wheels that use OEM ball seat wheel bolts

Brand:
Emmanuele Design - Corporate Logo
ES#:
4042993
Mfg#:
EMDSPACER125665B
Ships in 4 Business Days
$110.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

15mm Wheel Spacers - Black (Pair)

ES#3476433 - 021460TMS03-04 - 15mm Wheel Spacers - Black (Pair) - Lightweight wheel spacers with a machined tab for easy removal - Turner Motorsport - Audi BMW MINI Porsche

Lightweight wheel spacers with a machined tab for easy removal 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Turner Motorsport - Corporate Logo
ES#:
3476433
Mfg#:
021460TMS03-04
In Stock
ON SALE! SAVE 15%
$151.99

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

$129.19 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Ball Seat Locking Wheel Bolt Kit

ES#4745663 - 003901ECS40BB - Ball Seat Locking Wheel Bolt Kit - Black zinc coated wheel lock bolts made specifically for OE wheels. M14x1.5x40mm - ECS - Audi Volkswagen

Black zinc coated wheel lock bolts made specifically for OE wheels. M14x1.5x40mm 10X Entries For Our 25th Anniversary Sweepstakes!
For use with 10-12.5mm spacers

Brand:
ECS - Corporate Logo
ES#:
4745663
Mfg#:
003901ECS40BB
In Stock
ON SALE! SAVE 25%
$72.99

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

$54.74 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Adjustable rear Sway Bar End Links - Pair

ES#2864589 - 034-402-4004 - Adjustable rear Sway Bar End Links - Pair - Replace your flimsy, sloppy OEM sway bar end links with these performance engineered adjustable spherical endlinks - 034Motorsport - Audi

Replace your flimsy, sloppy OEM sway bar end links with these performance engineered adjustable spherical endlinks

Brand:
034Motorsport - Corporate Logo
ES#:
2864589
Mfg#:
034-402-4004
In Stock
$240.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

JE Performance Forged Piston Set

ES#3612517 - 284779 - JE Performance Forged Piston Set - Includes rings, wrist pins, and pin locks - 82.5mm bore +.5mm overbore, 10.38:1 CR, 92.8mm stroke (stock) - JE Piston - Audi Volkswagen

Includes rings, wrist pins, and pin locks - 82.5mm bore +.5mm overbore, 10.38:1 CR, 92.8mm stroke (stock)

Brand:
JE Piston - Corporate Logo
ES#:
3612517
Mfg#:
284779
Back Ordered
$899.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Audi B7 A4 2.0T Stage 1 RA4 Clutch Conversion Kit & Driveshaft Center Support Bearing Carrier

ES#4750976 - 002948ECS01EBKT - Audi B7 A4 2.0T Stage 1 RA4 Clutch Conversion Kit & Driveshaft Center Support Bearing Carrier - ECS RA4 Lightweight Flywheel with the Audi RS4 clutch kit rated at 314ft/lbs & CSB - Enthusiast Bundles - Audi

ECS RA4 Lightweight Flywheel with the Audi RS4 clutch kit rated at 314ft/lbs & CSB Don't See A Bundle You Want - Give Us A Call Or Chat - We Will Make One!

Brand:
Enthusiast Bundles - Corporate Logo
ES#:
4750976
Mfg#:
002948ECS01EBKT
In Stock
ON SALE! SAVE 20%
$1507.57

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

$1198.97 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Competition Intercooler Kit

ES#4017646 - 200001132 - Competition Intercooler Kit - Providing 178% more frontal area and 158% more volume compared to the stock mounted intercooler. - Wagner Tuning - Audi

Providing 178% more frontal area and 158% more volume compared to the stock mounted intercooler. Fits from the 2013 model year (facelift)

Brand:
Wagner Tuning - Corporate Logo
ES#:
4017646
Mfg#:
200001132
Ships on Aug 11, 2026
$899.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

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