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Audi A4 Most Popular Parts

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Audi B9 A4/S4 Front Lip Spoiler - Gloss Black & Grille Accent Set - Gloss Black

ES#4751328 - 028802ECS01EBKT - Audi B9 A4/S4 Front Lip Spoiler - Gloss Black & Grille Accent Set - Gloss Black - Upgrade your exterior styling! - Enthusiast Bundles - Audi

Upgrade your exterior styling! Don't See A Bundle You Want - Give Us A Call Or Chat - We Will Make One!
For S-Line models only. Fits up to 2019 model year with *pre-facelift* front bumpers

Brand:
Enthusiast Bundles - Corporate Logo
ES#:
4751328
Mfg#:
028802ECS01EBKT
In Stock
ON SALE! SAVE 39%
$657.78

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

$399.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

IABED Billet Aluminum Rear Main Seal Upgrade - With Installation Tool & Sealant

ES#4069852 - 462-103-171FKT - IABED Billet Aluminum Rear Main Seal Upgrade - With Installation Tool & Sealant - Permanent fix for that leaking rear main seal. Includes recommended installation tool and Dirko sealant to complete the job. - Assembled By ECS - Audi Volkswagen

Permanent fix for that leaking rear main seal. Includes recommended installation tool and Dirko sealant to complete the job. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
4069852
Mfg#:
462-103-171FKT
Ships on Oct 19, 2026
$134.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Torx Bolt - Set Of 23

ES#4766197 - N10554005-23PC - Torx Bolt - Set Of 23 - Install new hardware with your new parts. M6x35 - Bremmen Parts - Audi Volkswagen

Install new hardware with your new parts. M6x35 10X Entries Into Our F80 M3 Sweepstakes

Secures valve cover to the cylinder head - 22 required

Brand:
Bremmen Parts - Corporate Logo
ES#:
4766197
Mfg#:
N10554005-23PC
In Stock
ON SALE! SAVE 15%
$50.99

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

$43.34 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Ignition Coil - Priced Each

ES#2718679 - 07K905715F - Ignition Coil - Priced Each - Keep your engine running smooth - Bosch - Audi Volkswagen

Keep your engine running smooth We Price Match - Give Us A Call or Chat!

Brand:
Bosch - Corporate Logo
ES#:
2718679
Mfg#:
07K905715F
In Stock
$44.99

This product was last offered at the strikethrough price on
09-18-2026

$33.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

D1S 5000K XB Xenon Bulb - Pair

ES#4212774 - MM.N.073 - D1S 5000K XB Xenon Bulb - Pair - Quality replacement xenon bulbs from Morimoto - Morimoto - Audi BMW Volkswagen Mercedes Benz MINI

Quality replacement xenon bulbs from Morimoto

Brand:
Morimoto - Corporate Logo
ES#:
4212774
Mfg#:
MM.N.073
Back Ordered
15% off MSRP

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

$112.00

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

$94.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Balance Shaft Repair Set

ES#4668295 - 06H198205N - Balance Shaft Repair Set - Shafts necessary for balance shaft failure repair - Borsehung - Audi Volkswagen

Shafts necessary for balance shaft failure repair

Brand:
Borsehung - Corporate Logo
ES#:
4668295
Mfg#:
06H198205N
Back Ordered
$463.75 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Ignition Service Kit

ES#3464404 - 06E905115Fkt5 - Ignition Service Kit - Includes four Bosch red coil packs and four Bosch double platinum spark plugs - Assembled By ECS - Audi Volkswagen

Includes four Bosch red coil packs and four Bosch double platinum spark plugs 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
3464404
Mfg#:
06E905115FKT5
In Stock
$180.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

TSI Upgraded Silicone PCV Breather Hose (06J103221A)

ES#4906688 - 054529LA03 - TSI Upgraded Silicone PCV Breather Hose (06J103221A) - Replace your failure-prone plastic PCV hose with a durable, long-lasting solution! - ECS - Audi Volkswagen

Replace your failure-prone plastic PCV hose with a durable, long-lasting solution! 10X Entries Into Our F80 M3 Sweepstakes
10X Entries For Our Spin To Win Sweepstakes!
Up to the 2012 model year

Brand:
ECS - Corporate Logo
ES#:
4906688
Mfg#:
054529LA03
In Stock
ON SALE! SAVE 15%
$135.99

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

$115.59 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Rear Wheel Bearing/Hub Assembly - Priced each

ES#4812486 - 8W0501652D2KT - Rear Wheel Bearing/Hub Assembly - Priced each - Replace the right or left side and includes hardware - Assembled By ECS - Audi

Replace the right or left side and includes hardware 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
4812486
Mfg#:
8W0501652D2KT
Ships in 1 day
ON SALE!
$237.99

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

$231.09 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Separator/PCV Valve

ES#4691260 - 06K103495BL - Oil Separator/PCV Valve - Also called the "breather valve" or "oil separator" - Hamburg Tech - Audi Volkswagen

Also called the "breather valve" or "oil separator" We Price Match - Give Us A Call or Chat!
For vehicles with CYMC engine code only

Brand:
Hamburg Tech - Corporate Logo
ES#:
4691260
Mfg#:
06K103495BL
In Stock
$89.99

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

$83.95 USD
Free Shipping
on orders $49 and up

CTS High Performance Ignition Coil

ES#4419105 - CTS-IGN-006 - CTS High Performance Ignition Coil - These are the perfect replacement or upgrade to your FSI/TSI/TFSI engine to keep it running at its peak performance. - CTS - Audi Volkswagen

These are the perfect replacement or upgrade to your FSI/TSI/TFSI engine to keep it running at it’s peak performance.

Brand:
CTS - Corporate Logo
ES#:
4419105
Mfg#:
CTS-IGN-006
In Stock
$29.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Solid Rear Sway Bar - 25.4mm

ES#2864583 - 034-402-1000 - Solid Rear Sway Bar - 25.4mm - Substantially reduce understeer and body roll - 034Motorsport - Audi

Substantially reduce understeer and body roll 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
2864583
Mfg#:
034-402-1000
Ships in 2 Business Days
$332.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Pressure Control Valve (PCV)

ES#4768292 - 06F129101N - Pressure Control Valve (PCV) - Also called the "breather valve" or "oil separator" - Hengst - Audi Volkswagen
ECS Tuning recommends this product.

Also called the "breather valve" or "oil separator" 5X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
Up to production date 12/16/2005

Brand:
Hengst - Corporate Logo
ES#:
4768292
Mfg#:
06F129101N
In Stock
$26.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

B8 A4 Pre-Facelift (09-12) S-line Rear Diffuser - Single Exit - Gloss Black

ES#4701364 - 051610LA01-01 - B8 A4 Pre-Facelift (09-12) S-line Rear Diffuser - Single Exit - Gloss Black - Add some aggressive styling to your Audi! - ECS - Audi

Add some aggressive styling to your Audi! 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
4701364
Mfg#:
051610LA01-01
In Stock
ON SALE! SAVE 33%
$373.99

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

$250.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

IE Catback Exhaust System - B9 A4

ES#4904361 - IEEXCK8 - IE Catback Exhaust System - B9 A4 - Features high-flow 2.5" piping, 90mm twin exhaust tips, and iE's DroneTrap technology - Integrated Engineering - Audi

Features high-flow 2.5" piping, 90mm twin exhaust tips, and iE's DroneTrap technology Buy Integrated Engineering Software from 9/3/26 - 9/30/26 for a chance to win your Software for FREE!

Brand:
Integrated Engineering - Corporate Logo
ES#:
4904361
Mfg#:
IEEXCK8
In Stock
$1649.99 USD
Free Shipping

Billet Tunnel Brace - Black - Audi B8/Porsche Macan

ES#3569140 - 023780ECS01-01 - Billet Tunnel Brace - Black - Audi B8/Porsche Macan - Replace your small and weak stamped brace with heavy-duty billet aluminum! - ECS - Audi Porsche

Replace your small and weak stamped brace with heavy-duty billet aluminum! 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
3569140
Mfg#:
023780ECS01-01
In Stock
ON SALE! SAVE 25%
$170.99

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

$128.24 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

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