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Audi A4 Most Popular Parts

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Rear Upper Shock Mount Kit - Pair & Hardware

ES#5491258 - 4K0513353KT1 - Rear Upper Shock Mount Kit - Pair & Hardware - Fits the left and right sides - Assembled By ECS - Audi

Fits the left and right sides 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
5491258
Mfg#:
4K0513353KT1
Back Ordered
$195.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ECS Tuning 40k Service Kit - With Large Oil Filter

ES#2102459 - B6A440KSKWLF4 - ECS Tuning 40k Service Kit - With Large Oil Filter - Everything you need to perform the recommend 40k mile service on your 1.8T - Assembled By ECS - Audi

Everything you need to perform the recommend 40k mile service on your 1.8T 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
2102459
Mfg#:
B6A440KSKWLF4
Back Ordered
ON SALE!
$242.99

This product was last offered at the strikethrough price on
09-29-2026

$237.09 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

B6 A4 1.8T Performance Pack - Level 1

ES#4017066 - b618tpplvl1KT1 - B6 A4 1.8T Performance Pack - Level 1 - Entry-level performance kit composed of a careful selection of our best sellers, offering valuable performance gains at a 'bang for the buck' price point - Assembled By ECS - Audi

Entry-level performance kit composed of a careful selection of our best sellers, offering valuable performance gains at a 'bang for the buck' price point 10X Entries Into Our F80 M3 Sweepstakes
Fits up to VIN 8E-3-500000, split is in the 2003 model year

Brand:
Assembled By ECS - Corporate Logo
ES#:
4017066
Mfg#:
B618TPPLVL1KT1
Back Ordered
$398.99

This product was last offered at the strikethrough price on
07-17-2026

$374.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Exterior Bulb Refresh Kit W/ Fog Lights

ES#2581942 - N10566101KT2 - Exterior Bulb Refresh Kit W/ Fog Lights - Includes all headlight, tail light, fog light and side marker bulbs - Assembled By ECS - Audi

Includes all headlight, tail light, fog light and side marker bulbs 10X Entries Into Our F80 M3 Sweepstakes
For vehicles with Xenon headlights

Brand:
Assembled By ECS - Corporate Logo
ES#:
2581942
Mfg#:
N10566101KT2
Back Ordered
$297.99

This product was last offered at the strikethrough price on
06-12-2026

$283.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Exhaust Manifold Installation Kit

ES#2762257 - 06C253031JKT - Exhaust Manifold Installation Kit - Includes the necessary hardware and gasket to install the manifold - Assembled By ECS - Audi

Includes the necessary hardware and gasket to install the manifold 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
2762257
Mfg#:
06C253031JKT
Back Ordered
ON SALE! SAVE 14%
$169.99

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

$146.66 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ECS Tuning Timing Belt Kit - Ultimate

ES#7557 - 078198675 - ECS Tuning Timing Belt Kit - Ultimate - Everything you need for a complete timing belt job. Buy it all together & save. Includes ECS Cam locking tool. - Assembled By ECS - Audi

Everything you need for a complete timing belt job. Buy it all together & save. Includes ECS Cam locking tool. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
7557
Mfg#:
078198675
Back Ordered
ON SALE! SAVE 12%
$457.99

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

$403.18 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Replacement Kit

ES#2586882 - 8D0121403DKT - Expansion Tank Replacement Kit - Install a brand new expansion tank with a new cap and hardware - Assembled By ECS - Audi

Install a brand new expansion tank with a new cap and hardware 10X Entries Into Our F80 M3 Sweepstakes
Up to VIN 8D-W-007799, split is in the 1998 model year

Brand:
Assembled By ECS - Corporate Logo
ES#:
2586882
Mfg#:
8D0121403DKT
Back Ordered
$59.99

This product was last offered at the strikethrough price on
09-03-2026

$57.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ECS Tuning Timing Belt Kit - Ultimate Plus

ES#1893862 - 078198675 - ECS Tuning Timing Belt Kit - Ultimate Plus - The most comprehensive timing belt kit on the market! Includes ECS Cam Locking Tool. - Assembled By ECS - Audi

The most comprehensive timing belt kit on the market! Includes ECS Cam Locking Tool. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
1893862
Mfg#:
078198675
Back Ordered
ON SALE! SAVE 11%
$504.99

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

$449.05 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Complete Engine Mount Kit

ES#2587089 - 8D0199379AQKT - Complete Engine Mount Kit - Includes all mounts and hardware to reduce driveline vibrations - Assembled By ECS - Audi

Includes all mounts and hardware to reduce driveline vibrations 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
2587089
Mfg#:
8D0199379AQKT
Back Ordered
ON SALE!
$320.99

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

$309.32 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Radiator Installation Kit

ES#3659151 - 4b3121276aktKT - Radiator Installation Kit - Install new hardware with your new radiator - Assembled By ECS - Audi

Install new hardware with your new radiator 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
3659151
Mfg#:
4B3121276AKTKT
Back Ordered
$57.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Front Bulb Refresh Kit - Xenon

ES#2581949 - N10445701KT1 - Front Bulb Refresh Kit - Xenon - Avoid bulb outages before they happen with this front exterior lighting kit! - Assembled By ECS - Audi

Avoid bulb outages before they happen with this front exterior lighting kit! 10X Entries Into Our F80 M3 Sweepstakes
Fits vehicles with Xenon headlights up to VIN 8E-2-115714 - split is in the 2002 model year

Brand:
Assembled By ECS - Corporate Logo
ES#:
2581949
Mfg#:
N10445701KT1
Back Ordered
ON SALE!
$127.99

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

$125.36 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Drivetrain Mount Kit

ES#2771370 - 8D0399151HKT3 - Drivetrain Mount Kit - Includes both engine and transmission mounts with hardware - Assembled By ECS - Audi

Includes both engine and transmission mounts with hardware 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
2771370
Mfg#:
8D0399151HKT3
Back Ordered
ON SALE!
$258.99

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

$251.02 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Fuel Injector Installation Kit

ES#5434914 - 077906037AKT7 - Fuel Injector Installation Kit - A simple to service all six injectors! - Assembled By ECS - Audi

A simple to service all six injectors! 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
5434914
Mfg#:
077906037AKT7
Back Ordered
ON SALE!
$52.86

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

$51.62 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ECS Tuning Timing Belt Kit - Ultimate

ES#3327 - 078198579 V2 - ECS Tuning Timing Belt Kit - Ultimate - Everything you need for a complete timing belt job. Buy it all together & save. - Assembled By ECS - Audi

Everything you need for a complete timing belt job. Buy it all together & save. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
3327
Mfg#:
078198579 V2
Back Ordered
ON SALE!
$225.37 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oil Pan Replacement Kit

ES#2602606 - 058103598CKT2 - Oil Pan Replacement Kit - Everything required to replace your leaking pan, including the oil change - Assembled By ECS - Audi

Everything required to replace your leaking pan, including the oil change 10X Entries Into Our F80 M3 Sweepstakes
For vehicles without oil level sensors

Brand:
Assembled By ECS - Corporate Logo
ES#:
2602606
Mfg#:
058103598CKT2
Back Ordered
ON SALE!
$412.99

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

$379.14 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Oil Pan Replacement Kit

ES#2602641 - 078103604HKT - Oil Pan Replacement Kit - Everything required to replace your leaking pan, including the oil change - Assembled By ECS - Audi

Everything required to replace your leaking pan, including the oil change 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
2602641
Mfg#:
078103604HKT
Back Ordered
ON SALE!
$309.99

This product was last offered at the strikethrough price on
10-06-2026

$305.53 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

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