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Audi B9 A4 Quattro 2.0T Most Popular Parts

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ES#2748291 - 6-ECS-024 - Wheel Spacer & Bolt Kit - 20mm With Black Ball Seat Bolts - Add some style to your Audi with these wheel spacers - ECS - Audi

Add some style to your Audi with these wheel spacers affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Fits OEM wheels, or wheels that use OEM ball seat wheel bolts

Brand:
ECS - Corporate Logo
ES#:
2748291
Mfg#:
6-ECS-024
In Stock
ON SALE! SAVE 10%
$187.99

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

$169.19 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3085659 - 06H145710C - Diverter Valve - Revised diaphragm-based diverter valve - Pierburg - Audi Volkswagen

Revised diaphragm-based diverter valve affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Pierburg - Corporate Logo
ES#:
3085659
Mfg#:
06H145710C
In Stock
$62.49 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#5425238 - 06L121111J - Thermostat/Water Pump Kit - With Belt  - Advanced design with fewer moving parts and lower weight - without sacrificing cooling performance or warm-up temperature curve. Includes thermostat, water pump, union, and belt. - Bremmen Parts - Audi Volkswagen Porsche

Advanced design with fewer moving parts and lower weight - without sacrificing cooling performance or warm-up temperature curve. Includes thermostat, water pump, union, and belt. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
5425238
Mfg#:
06L121111J
In Stock
ON SALE! SAVE 20%
$265.99

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

$212.15 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2748588 - 803-1KT4 - 17" Style 803 Wheels - Staggered Set Of Four - 17"x8"/17"x9" ET30 66.6CB 5x112 Silver with machined lip - Alzor - Audi Mercedes Benz

17"x8"/17"x9" ET30 66.6CB 5x112 Silver with machined lip affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Alzor - Corporate Logo
ES#:
2748588
Mfg#:
803-1KT4
In Stock
ON SALE! SAVE 25%
$1035.99

This product was last offered at the strikethrough price on
01-03-2026

$774.99 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. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary 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#2762373 - 06K905601BKT - Spark Plugs - Set Of Four - NGK revision of genuine plugs - Genuine Volkswagen Audi - Audi Volkswagen

NGK revision of genuine plugs affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2762373
Mfg#:
06K905601BKT
In Stock
$54.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4491679 - 034-509-5036 - Street Density Line Motor Mount Kit - 50 Durometer - Void-free and fluid-free, eliminating the slop associated with the factory mounts - 034Motorsport - Audi

Void-free and fluid-free, eliminating the slop associated with the factory mounts affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
4491679
Mfg#:
034-509-5036
In Stock
$449.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3188034 - 06L109259AKT - Camshaft Adjuster Magnet  - Stop oil leaks and replace the adjuster magnet in your vehicle - Febi - Audi Volkswagen

Stop oil leaks and replace the adjuster magnet in your vehicle affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
3188034
Mfg#:
06L109259AKT
In Stock
$84.66

This product was last offered at the strikethrough price on
03-17-2026

$50.75 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3981207 - 028801ECS01 - Audi B9 S4/A4 Trunk Spoiler - Gloss Black - Add some aggressive styling to your Audi! - ECS - Audi

Add some aggressive styling to your Audi! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3981207
Mfg#:
028801ECS01
In Stock
ON SALE! SAVE 25%
$289.99

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

$217.49 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2713045 - 030-9 - 18" Style 030 Wheels - Set Of Four - 18"x8" ET35 5x112 66.6CB - Matte Black - Alzor - Audi MINI

18"x8" ET35 5x112 66.6CB - Matte Black affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Alzor - Corporate Logo
ES#:
2713045
Mfg#:
030-9
In Stock
ON SALE! SAVE 25%
$1166.99

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

$875.01 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3245919 - IEINCK1 - Performance Cold Air Intake System  - Add power, performance, and style to your B9 A4/A5 2.0T engine! - Integrated Engineering - Audi

Add power, performance, and style to your B9 A4/A5 2.0T engine! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Integrated Engineering - Corporate Logo
ES#:
3245919
Mfg#:
IEINCK1
In Stock
$419.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3187941 - 50357 - Sport Springs - Set  - Finally, A performance lowering spring for your B9 chassis Audi - Offering unrivaled comfort and performance - H&R - Audi

Finally, A performance lowering spring for your B9 chassis Audi - Offering unrivaled comfort and performance affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
Average lowering of .80" front and rear for models with factory sport suspension. Average lowering of 1.6" front and rear for models without factory sport suspension

Brand:
H&R - Corporate Logo
ES#:
3187941
Mfg#:
50357
In Stock
$286.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2748282 - 002411ECS02AKT5 - Wheel Spacer & Bolt Kit - 10mm With Black Ball Seat Bolts - Complete kit for two wheels, includes everything you need to install spacers - ECS - Audi

Complete kit for two wheels, includes everything you need to install spacers affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Fits OEM wheels, or wheels that use OEM ball seat wheel bolts

Brand:
ECS - Corporate Logo
ES#:
2748282
Mfg#:
002411ECS02AKT5
In Stock
ON SALE! SAVE 24%
$193.99

This product was last offered at the strikethrough price on
01-03-2026

$147.89 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2597382 - 4H0615601HZIMKT - Rear Brake Rotors - Pair (330x22) - Featuring Zimmermann's "Coat Z" coating for corrosion resistance - Zimmermann - Audi
ECS Tuning recommends this product.

Featuring Zimmermann's "Coat Z" coating for corrosion resistance affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Zimmermann - Corporate Logo
ES#:
2597382
Mfg#:
4H0615601HZIMKT
In Stock
$185.98 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4163869 - 001734la01 - Audi B9 A4 / S4 Flat Side Skirts - Gloss Black - Enhance your side profile with an aggressive look! - ECS - Audi

Enhance your side profile with an aggressive look! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4163869
Mfg#:
001734LA01
In Stock
ON SALE! SAVE 20%
$363.99

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

$291.19 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3691031 - er10sKT - Brisk Silver Racing ER10S Spark Plugs - Set Of Four  - Featuring silver fine wire center electrode - Superior ignition ability increases engine power! - Brisk - Audi Volkswagen

Featuring silver fine wire center electrode - Superior ignition ability increases engine power! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Two heat ranges colder than stock with a non-projected tip

Brand:
Brisk - Corporate Logo
ES#:
3691031
Mfg#:
ER10SKT
In Stock
$47.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

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