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Audi A4 Most Popular Parts

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ES#4045629 - CTS-IT-290R - Performance High-Flow Air Intake System - 6" Velocity Stack  - Designed to work in conjunction with the OEM air scoop to seamlessly force cold air into the system - Flowed through a massive 6" velocity stack filter! - CTS - Audi

Designed to work in conjunction with the OEM air scoop to seamlessly force cold air into the system - Flowed through a massive 6" velocity stack filter!

Brand:
CTS - Corporate Logo
ES#:
4045629
Mfg#:
CTS-IT-290R
In Stock
ON SALE! SAVE 15%
$299.99

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

$254.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3199968 - 034-401-1042 - Density Line Front Upper Control Arm Kit - Refresh your front end with 034Motorsport's front upper control arm kit - 034Motorsport - Audi Porsche

Refresh your front end with 034Motorsport's front upper control arm kit 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
3199968
Mfg#:
034-401-1042
In Stock
$337.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3245923 - 06E905115Fkt - Coil Pack - Set Of Four - Dress up your engine bay and restore power with these red top coil packs - Bosch - Audi Volkswagen

Dress up your engine bay and restore power with these red top coil packs We Price Match - Give Us A Call or Chat!

Brand:
Bosch - Corporate Logo
ES#:
3245923
Mfg#:
06E905115FKT
In Stock
$131.99

This product was last offered at the strikethrough price on
10-26-2026

$120.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4033487 - 028808ECS01 - Audi B8 S4 / A4 S-Line Rear Diffuser - 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

Fits pre-facelift B8 S-Line models with quad tips only

Brand:
ECS - Corporate Logo
ES#:
4033487
Mfg#:
028808ECS01
In Stock
ON SALE! SAVE 25%
$420.99

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

$315.74 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2776767 - 06l115562KT - Genuine Oil Service Kit (5w-40) - Includes 5w-40 Genuine oil, filter and drain plug - Genuine Volkswagen Audi - Audi Volkswagen

Includes 5w-40 Genuine oil, filter and drain plug

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2776767
Mfg#:
06L115562KT
In Stock
$120.99

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

$115.99 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement
ES#4376594 - MS100210-4KT - APR Upgraded Ignition Coil - Blue - Set of Four - Designed to be a direct plug-and-play upgrade to factory coils, providing greater energy output, ensuring a stronger and more consistent spark! - APR - 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! Call In Or Chat For Best Price!

Brand:
APR - Corporate Logo
ES#:
4376594
Mfg#:
MS100210-4KT
In Stock
$147.80 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#1831851 - 06H145710D -  Upgraded Piston Diverter Valve 06H145710D - Upgrade to a superior piston style diverter valve to avoid costly boost leaks - Pierburg - Audi Volkswagen

Upgrade to a superior piston style diverter valve to avoid costly boost leaks

Brand:
Pierburg - Corporate Logo
ES#:
1831851
Mfg#:
06H145710D
In Stock
43% off MSRP

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

$110.00

This product was last offered at the strikethrough price on
11-05-2026

$62.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3698662 - 017623ecs01-01 - Audi B7 A4 2.0T Luft-Technik Intercooler and Charge Pipe Kit - Full kit to upgrade your intercooler, charge pipes, and power steering cooler! - ECS - Audi

Full kit to upgrade your intercooler, charge pipes, and power steering cooler! 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
3698662
Mfg#:
017623ECS01-01
In Stock
ON SALE! SAVE 20%
$917.99

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

$733.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4474069 - 000703LA01 - B5 A4 / S4 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 Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
4474069
Mfg#:
000703LA01
In Stock
ON SALE!
$829.99

This product was last offered at the strikethrough price on
08-20-2026

$799.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3426489 - WMA3000A - Tune2Air Bovee Plug-And-Play Bluetooth Adapter  - Allows for the wireless streaming of music from your iPhone, iPad, iPod, and most Android/Windows devices - Tune2Air - Audi Volkswagen

Allows for the wireless streaming of music from your iPhone, iPad, iPod, and most Android/Windows devices For models with factory AMI (Audi Music Interface), MDI (VW Media-In Multimedia Port), and MMI (Mercedes Media Interface) ports

Brand:
Tune2Air - Corporate Logo
ES#:
3426489
Mfg#:
WMA3000A
In Stock
$89.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3470702 - IETPCK1 - FDS Front-Mount Intercooler Kit - Silver - 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!

Brand:
Integrated Engineering - Corporate Logo
ES#:
3470702
Mfg#:
IETPCK1
In Stock
$1034.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#8925 - BKR7EIX4cly - Iridium Spark Plugs - Set Of Four - Long lasting Iridium alternative to OE Platinum core plugs - NGK - Audi Volkswagen

Long lasting Iridium alternative to OE Platinum core plugs We Price Match - Give Us A Call or Chat!

Brand:
NGK - Corporate Logo
ES#:
8925
Mfg#:
BKR7EIX4CLY
In Stock
$55.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2794552 - IERTVT1 - Forged I-Beam Tuscan Connecting Rods - Rifle Drilled - Set of 4 connecting rods, to be paired with 22mm wrist pin aftermarket pistons (JE, Wiseco, Mahle ETC) - Integrated Engineering - Audi Volkswagen

Set of 4 connecting rods, to be paired with 22mm wrist pin aftermarket pistons (JE, Wiseco, Mahle ETC)
To be used with aftermarket pistons with 22mm wrist pin

Brand:
Integrated Engineering - Corporate Logo
ES#:
2794552
Mfg#:
IERTVT1
In Stock
$749.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4714528 - 051204LA01-A - B9 A4 / S4 Lowering Spring Set - Dramatically improve looks and handling with and average lowering up to 1.5" front and rear. - ECS - Audi

Dramatically improve looks and handling with and average lowering up to 1.5" front and rear. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
4714528
Mfg#:
051204LA01-A
In Stock
ON SALE! SAVE 10%
$315.99

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

$284.39 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#251841 - 50361 - Sport Springs - Set - Unrivaled comfort and performance. Average lowering of 1.5"F 1.5"R - H&R - Audi

Unrivaled comfort and performance. Average lowering of 1.5"F 1.5"R We Price Match - Give Us A Call or Chat!

Brand:
H&R - Corporate Logo
ES#:
251841
Mfg#:
50361
In Stock
15% off MSRP

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

$439.00

This product was last offered at the strikethrough price on
10-01-2026

$373.15 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2539447 - 06E905115EKTN - Ignition Service Kit - Includes four Original Equipment red coil packs and four NGK iridium spark plugs (BKR8EIX - One heat range colder) - Assembled By ECS - Audi Volkswagen

Includes four Original Equipment red coil packs and four NGK iridium spark plugs (BKR8EIX - One heat range colder) 10X Entries Into Our F80 M3 Sweepstakes
Beneficial to cars with basic performance upgrades

Brand:
Assembled By ECS - Corporate Logo
ES#:
2539447
Mfg#:
06E905115EKTN
Ships in 1-2 days
ON SALE! SAVE 10%
$178.99

This product was last offered at the strikethrough price on
09-08-2026

$160.25 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

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