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Audi B9 A4 Quattro 2.0T Most Popular Parts

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ES#3570418 - VWR630001 - VWR Stud & Nut Conversion Kit - Conical Seat - 70mm Studs - Replace those fussy bolts with Racingline's high tensile stud & lightweight nut conversion - Racingline - Audi Volkswagen

Replace those fussy bolts with Racingline's high tensile stud & lightweight nut conversion affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Racingline - Corporate Logo
ES#:
3570418
Mfg#:
VWR630001
Ships in 1-2 days
$206.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4897813 - 06Q103495G - Oil Separator/ Pressure Control Valve (PCV)  - Located on top of your valve cover - Genuine Volkswagen Audi - Audi Volkswagen

Located on top of your valve cover affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For Face-lift models (2020+) with DPAA engine code

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4897813
Mfg#:
06Q103495G
In Stock
2% off MSRP

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

$112.99

This product was last offered at the strikethrough price on
06-24-2026

$110.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3220561 - 06K109467K - Timing Chain Tensioner - Upper - For the camshaft chain and located near the left guide rail - Bremmen Parts - Audi Volkswagen

For the camshaft chain and located near the left guide rail affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
3220561
Mfg#:
06K109467K
In Stock
ON SALE! SAVE 15%
$63.99

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

$54.39 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3209930 - 034-404-1001 - Dynamic+ Performance Lowering Springs - Engineered to improve handling and deliver superb ride quality! - 034Motorsport - Audi

Engineered to improve handling and deliver superb ride quality! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
3209930
Mfg#:
034-404-1001
In Stock
$326.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3426672 - 034-105-7044 - 034Motorsport Res-X Resonator Delete  - Unleashes a throaty growl and exotic tone that exudes the sound of
performance - Deletes front-most resonator - 034Motorsport - Audi

Unleashes a throaty growl and exotic tone that exudes the sound of performance - Deletes front-most resonator affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
3426672
Mfg#:
034-105-7044
In Stock
$222.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3610622 - 034-145-Z040 - 034Motorsport Turbo Muffler Delete With Test Ports - Lets the driver hear what the turbo has to say - The only turbo muffler delete with built-in test ports! - 034Motorsport - Audi Volkswagen

Lets the driver hear what the turbo has to say - The only turbo muffler delete with built-in test ports! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles pre-facelift models only (through 2020)

Brand:
034Motorsport - Corporate Logo
ES#:
3610622
Mfg#:
034-145-Z040
In Stock
$140.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4830891 - CTS-EM-MQL-60D - Street Sport Motor Mounts - Redefine the balance between comfort and performance - CTS - Audi

Redefine the balance between comfort and performance affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
CTS - Corporate Logo
ES#:
4830891
Mfg#:
CTS-EM-MQL-60D
Ships in 7 Business Days
$349.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2748288 - 6-ECS-023 - Wheel Spacer & Bolt Kit - 17.5mm 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#:
2748288
Mfg#:
6-ECS-023
In Stock
ON SALE! SAVE 25%
$173.99

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

$130.49 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3553443 - 68510476 - Dynamic Chassis Control Cancelers (DCC)  - Removes the code for DCC/EDC when swapping to coilovers. - KW Suspension - Audi

Removes the code for DCC/EDC when swapping to coilovers. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
KW Suspension - Corporate Logo
ES#:
3553443
Mfg#:
68510476
In Stock
$493.99 USD
Free Shipping
ES#4159275 - S17D45R13ZNNI-2 - Ball Seat Wheel Bolt - 14x1.5x45mm - Priced Per Pair  - Black zinc coated wheel bolts made specifically for OE wheels - ECS - Audi Volkswagen

Black zinc coated wheel bolts made specifically for OE wheels affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4159275
Mfg#:
S17D45R13ZNNI-2
In Stock
ON SALE! SAVE 25%
$12.99

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

$9.74 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4766163 - 06J998907D - Fuel Injector Repair Kit (06J998907D) - One kit required per injector - Bremmen Parts - Audi Volkswagen Porsche

One kit required per injector affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4766163
Mfg#:
06J998907D
In Stock
ON SALE! SAVE 10%
$10.99

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

$9.89 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3220757 - 06K109158A - Timing Chain - Lower - Stop stretched out chains from creating noise - Bremmen Parts - Audi Volkswagen

Stop stretched out chains from creating noise affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
3220757
Mfg#:
06K109158A
In Stock
ON SALE! SAVE 15%
$85.99

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

$73.09 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3411932 - 024564ECS01 - Carbon Fiber Mirror Cap Set - Audi B9 A4/A5/S4/S5 - With Lane Change Assist - ECS - Audi

With Lane Change Assist affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

For vehicles with lane change assist

Brand:
ECS - Corporate Logo
ES#:
3411932
Mfg#:
024564ECS01
In Stock
ON SALE! SAVE 20%
$413.99

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

$331.19 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4739037 - DD23-1898 - Rear DD23 "Daily Driver" Ceramic Brake Pad Set - This enthusiast-developed pad offers confident stopping power, very low dust, quiet braking, and a positive initial bite. The perfect choice for your daily-driven Euro! - ECS - Audi

This enthusiast-developed pad offers confident stopping power, very low dust, quiet braking, and a positive initial bite. The perfect choice for your daily-driven Euro! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4739037
Mfg#:
DD23-1898
In Stock
ON SALE! SAVE 20%
$81.99

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

$65.59 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3170153 - 019209ECS01 - Transmission Mount Bushing Insert Kit - Decrease transmission mount slop for better drivetrain response! - ECS - Audi

Decrease transmission mount slop for better drivetrain response! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Does not fit manual transmission models

Brand:
ECS - Corporate Logo
ES#:
3170153
Mfg#:
019209ECS01
In Stock
ON SALE! SAVE 15%
$93.99

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

$79.89 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

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