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Audi A4 Most Popular Parts

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Fuel Injector Service Kit

ES#2785448 - 06H906036GKT1 - Fuel Injector Service Kit - Includes all 4 injectors with installation kits - Assembled By ECS - Audi Volkswagen

Includes all 4 injectors with installation kits 10X Entries For Our 25th Anniversary Sweepstakes!
Up to the 2012 model year

Brand:
Assembled By ECS - Corporate Logo
ES#:
2785448
Mfg#:
06H906036GKT1
In Stock
ON SALE! SAVE 20%
$311.92

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

$249.52 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ECS Tuning B8 2.0T Stage 2 Performance Clutch Kit With Lightweight Flywheel (17.8lbs)

ES#4817914 - 048484la01KT - ECS Tuning B8 2.0T Stage 2 Performance Clutch Kit With Lightweight Flywheel (17.8lbs) - The best value for Heavy Duty OE Replacement and Stage 2 Power Levels! Capable of holding 400Ft/Lbs of crank torque. - ECS - Audi

The best value for Heavy Duty OE Replacement and Stage 2 Power Levels! Capable of holding 400Ft/Lbs of crank torque. 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4817914
Mfg#:
048484LA01KT
In Stock
ON SALE! SAVE 20%
$2039.99

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

$1631.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ECS Gen 3 Red Performance Ignition Coil - Priced Each

ES#4630028 - 002540LCA01 - ECS Gen 3 Red Performance Ignition Coil - Priced Each - Designed to be a direct plug-and-play upgrade to factory coils, providing greater energy output, ensuring a stronger and more consistent spark! - ECS - Audi Volkswagen

Designed to be a direct plug-and-play upgrade to factory coils, providing greater energy output, ensuring a stronger and more consistent spark! 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4630028
Mfg#:
002540LCA01
In Stock
ON SALE! SAVE 20%
$46.99

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

$37.59 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

B9 A4/A5/S4/S5 Quattro Adjustable Damping Coilovers

ES#4474122 - 000745lA01 - B9 A4/A5/S4/S5 Quattro Adjustable Damping Coilovers - Features 32 way adjustable damping, variable length and zinc-coated shock bodies - ECS - Audi

Features 32 way adjustable damping, variable length and zinc-coated shock bodies 10X Entries For Our 25th Anniversary Sweepstakes!
Models with Dynamic Chassis Control (DCC) will require DCC Cancelers

Brand:
ECS - Corporate Logo
ES#:
4474122
Mfg#:
000745LA01
In Stock
ON SALE! SAVE 34%
$1178.99

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

$779.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Audi B8.5 S4 / A4 S-Line Facelift Front Lip - Gloss Black

ES#4164657 - 028806ecs01KT - Audi B8.5 S4 / A4 S-Line Facelift Front Lip - Gloss Black - Upgrade your exterior styling! - ECS - Audi

Upgrade your exterior styling! 10X Entries For Our 25th Anniversary Sweepstakes!

For S-Line models from the 2013 model year (Facelift)

Brand:
ECS - Corporate Logo
ES#:
4164657
Mfg#:
028806ECS01KT
In Stock
ON SALE! SAVE 25%
$388.99

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

$291.74 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Solo-Werks S1 Coilovers

ES#2777320 - s1au006 - Solo-Werks S1 Coilovers - Set your vehicle low and tight for optimal performance - Solo-Werks - Audi

Set your vehicle low and tight for optimal performance Lowering front: .5" - 2.5", rear: .5" - 2.5"

Brand:
Solo-Werks - Corporate Logo
ES#:
2777320
Mfg#:
S1AU006
In Stock
$599.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

GFB VTA Blow Off Valve

ES#4845532 - T9481 - GFB VTA Blow Off Valve - Sharper throttle response, faster boost recovery - Go Fast Bits - Audi Volkswagen

Sharper throttle response, faster boost recovery

Brand:
Go Fast Bits - Corporate Logo
ES#:
4845532
Mfg#:
T9481
In Stock
$269.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Pressure Control Valve (PCV)

ES#4620654 - 06H103495AH - 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" 10X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
Fits up to production date 3/31/2012 - Please check existing part number before ordering

Brand:
Hengst - Corporate Logo
ES#:
4620654
Mfg#:
06H103495AH
In Stock
$129.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Density Line Front Lower Control Arm Kit

ES#3199970 - 034-401-1043 - Density Line Front Lower Control Arm Kit - Includes new lower control arms with Density Line control arm bushings, M14 ball joints, and hardware - 034Motorsport - Audi Porsche

Includes new lower control arms with Density Line control arm bushings, M14 ball joints, and hardware Fits models from production date 11/3/2009 (M14 Ball Joints)

Brand:
034Motorsport - Corporate Logo
ES#:
3199970
Mfg#:
034-401-1043
In Stock
$638.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Luft-Technik Intake System - Audi B7 A4 2.0T

ES#3023195 - 013859ECS01 - Luft-Technik Intake System - Audi B7 A4 2.0T - Engineered for increased engine performance with show quality looks - ECS - Audi

Engineered for increased engine performance with show quality looks 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3023195
Mfg#:
013859ECS01
In Stock
ON SALE! SAVE 25%
$520.99

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

$390.74 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

8-Speed Automatic Transmission Service Kit

ES#4007157 - 0BK398009KT4 - 8-Speed Automatic Transmission Service Kit - Includes the necessary filter, plug, gasket, and Liqui Moly fluid to service your transmission - Assembled By ECS - Audi

Includes the necessary filter, plug, gasket, and Liqui Moly fluid to service your transmission 10X Entries For Our 25th Anniversary Sweepstakes!
For 8-speed automatic transmissions only

Brand:
Assembled By ECS - Corporate Logo
ES#:
4007157
Mfg#:
0BK398009KT4
In Stock
ON SALE!
$189.99

This product was last offered at the strikethrough price on
06-19-2026

$189.15 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

FDS Front-Mount Intercooler Kit - Black

ES#4505840 - IETPCK1-BK - FDS Front-Mount Intercooler Kit - Black - Increase horsepower and eliminate heatsoak - Drop-in intercooler requires no cutting, trimming, or mods! - Integrated Engineering - Audi

Increase horsepower and eliminate heatsoak - Drop-in intercooler requires no cutting, trimming, or mods! 5X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Integrated Engineering - Corporate Logo
ES#:
4505840
Mfg#:
IETPCK1-BK
In Stock
$1034.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Performance Ignition Service Kit

ES#4620037 - 06E905115GKT11 - Performance Ignition Service Kit - Includes four ECS Performance red coil packs and four NGK iridium spark plugs (BKR8EIX - One heat range colder) - Assembled By ECS - Audi Volkswagen

Includes four ECS Performance red coil packs and four NGK iridium spark plugs (BKR8EIX - One heat range colder) 10X Entries For Our 25th Anniversary Sweepstakes!
Beneficial to cars with basic performance upgrades

Brand:
Assembled By ECS - Corporate Logo
ES#:
4620037
Mfg#:
06E905115GKT11
In Stock
ON SALE! SAVE 18%
$178.99

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

$147.53 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Turbo Muffler Delete Pipe

ES#3999162 - 019330ecs01KT - Turbo Muffler Delete Pipe - Replace the factory turbo muffler with a straight through billet aluminum delete pipe kit - ECS - Audi Volkswagen

Replace the factory turbo muffler with a straight through billet aluminum delete pipe kit 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3999162
Mfg#:
019330ECS01KT
In Stock
ON SALE! SAVE 25%
$140.99

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

$105.74 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Billet Aluminum Rear Main Seal

ES#4370261 - 034-202-6004 - Billet Aluminum Rear Main Seal - Permanent fix for that leaking rear main seal - 034Motorsport - Audi Volkswagen

Permanent fix for that leaking rear main seal

Brand:
034Motorsport - Corporate Logo
ES#:
4370261
Mfg#:
034-202-6004
In Stock
$145.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Ignition Service Kit

ES#2535339 - 06E905115EKT - Ignition Service Kit - Includes four Original Equipment red coil packs and four Bosch double platinum spark plugs - Assembled By ECS - Audi Volkswagen

Includes four Original Equipment red coil packs and four Bosch double platinum spark plugs 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2535339
Mfg#:
06E905115EKT
In Stock
$163.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

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