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Audi B9 A4 Quattro 2.0T

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Audi B9 A4 Quattro 2.0T Most Popular Parts

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X34 Carbon Fiber Intake System

ES#4500832 - 034-108-1051 - X34 Carbon Fiber Intake System - Delivers improved power, sound, and acceleration in a clean OEM+ package. - 034Motorsport - Audi

Delivers improved power, sound, and acceleration in a clean OEM+ package. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
4500832
Mfg#:
034-108-1051
Back Ordered
Auto Notify
$833.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

EMD Auto 15mm Wheel Spacers - Pair (With Bolts)

ES#4042997 - EMD-SPACER15665B - EMD Auto 15mm Wheel Spacers - Pair (With Bolts) - Manufactured out of high quality 6061-T6 aluminum, and black anodized for corrosion resistance - 5x112, 66.5 Center Bore - Emmanuele Design - Audi

Manufactured out of high quality 6061-T6 aluminum, and black anodized for corrosion resistance - 5x112, 66.5 Center Bore affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Emmanuele Design - Corporate Logo
ES#:
4042997
Mfg#:
EMD-SPACER15665B
Ships on Aug 19, 2026
Auto Notify
$110.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Conical Seat Tuner Spline Bolt Set - Standard Length - Chrome

ES#3246216 - TunerBoltKit - Conical Seat Tuner Spline Bolt Set - Standard Length - Chrome - Full set of chrome tuner style, socket-specific lug bolts. 14x1.5x27mm - Rohana Wheels - Audi BMW Volkswagen

Full set of chrome tuner style, socket-specific lug bolts. 14x1.5x27mm affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Rohana Wheels - Corporate Logo
ES#:
3246216
Mfg#:
TUNERBOLTKIT
In Stock
$70.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

19" Wheel Spacer Flush Fit Kit - Black Bolts

ES#3240970 - 023881ecs01KT - 19" Wheel Spacer Flush Fit Kit - Black Bolts - Includes ECS spacers & Black bolts to obtain a flush look on your OE 19" wheels - ECS - Audi

Includes ECS spacers & Black bolts to obtain a flush look on your OE 19" wheels affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3240970
Mfg#:
023881ECS01KT
In Stock
ON SALE!
$271.99

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

$263.83 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Audi B9 A4/A5 ECU Cover - Matte Black

ES#3739793 - 028799ECS01 - Audi B9 A4/A5 ECU Cover - Matte Black - Compliment your engine bay and hide away the exposed ECU - ECS - Audi

Compliment your engine bay and hide away the exposed ECU affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3739793
Mfg#:
028799ECS01
In Stock
ON SALE! SAVE 25%
$103.99

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

$77.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Dynamic Floating Center Cap "Spin Wheel Cap" - Set Of 4 (Audi Logo)

ES#4413814 - 4M8071006A - Dynamic Floating Center Cap "Spin Wheel Cap" - Set Of 4 (Audi Logo) - Distinctive look with a fascinating presentation. - Genuine Volkswagen Audi - Audi

Distinctive look with a fascinating presentation. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4413814
Mfg#:
4M8071006A
In Stock
4% off MSRP

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

$249.99

This product was last offered at the strikethrough price on
06-03-2026

$239.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Unitronic Intercooler Upgrade 2.0TSI MLB B9 A4/A5/Allroad

ES#4362348 - UH016-ICA - Unitronic Intercooler Upgrade 2.0TSI MLB B9 A4/A5/Allroad - Direct OEM replacement kit featuring a massive bar and plate intercooler core made from cast aluminum core and end tanks, proprietary internal fin and louver configuration, and a TIG welded construction. - Unitronic - Audi

Direct OEM replacement kit featuring a massive bar and plate intercooler core made from cast aluminum core and end tanks, proprietary internal fin and louver configuration, and a TIG welded construction. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Unitronic - Corporate Logo
ES#:
4362348
Mfg#:
UH016-ICA
In Stock
$949.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Turbocharger Installation Kit

ES#4685241 - 06L253039IKT - Turbocharger Installation Kit - All hardware & gaskets that you would need to install a turbocharger - Genuine Volkswagen Audi - Audi

All hardware & gaskets that you would need to install a turbocharger affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4685241
Mfg#:
06L253039IKT
Ships in 3 Business Days
$217.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Conical Seat Stud Conversion Kit

ES#2804053 - 001467ECS01KT2 - Conical Seat Stud Conversion Kit - Make wheel changes faster and easier - ECS - Audi Volkswagen

Make wheel changes faster and easier affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
For use with conical seat wheels and up to 20mm spacers only

Brand:
ECS - Corporate Logo
ES#:
2804053
Mfg#:
001467ECS01KT2
Back Ordered
Auto Notify
ON SALE! SAVE 10%
$201.99

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

$181.79 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

034Motorsport Wheel Spacer Pair - 15mm

ES#3618566 - 034-604-7005 - 034Motorsport Wheel Spacer Pair - 15mm - Designed to fit most Audi & Volkswagen vehicles with a 66.6mm center bore and 5x112mm wheel bolt patterns. - 034Motorsport - Audi

Designed to fit most Audi & Volkswagen vehicles with a 66.6mm center bore and 5x112mm wheel bolt patterns. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
3618566
Mfg#:
034-604-7005
In Stock
$115.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Silicone Turbo Inlet Hose

ES#4017429 - 019216ECS02 - Silicone Turbo Inlet Hose - Flexible silicone smooths the intake tract & provides unimpeded airflow. The ultimate in looks and durability! - ECS - Audi

Flexible silicone smooths the intake tract & provides unimpeded airflow. The ultimate in looks and durability! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Does not fit models equipped with a MAF sensor (DBPA or DPAA engine codes) - Please verify prior to order

Brand:
ECS - Corporate Logo
ES#:
4017429
Mfg#:
019216ECS02
In Stock
ON SALE! SAVE 25%
$96.99

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

$72.74 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

034Motorsport Wheel Spacer Pair - 10mm

ES#4020172 - 034-604-7006 - 034Motorsport Wheel Spacer Pair - 10mm - Designed to fit most Audi & Volkswagen vehicles with a 66.5mm center bore and 5x112mm wheel bolt patterns. - 034Motorsport - Audi

Designed to fit most Audi & Volkswagen vehicles with a 66.5mm center bore and 5x112mm wheel bolt patterns. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
4020172
Mfg#:
034-604-7006
In Stock
$98.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Fuel Additive

ES#1895145 - G001770A2 - Fuel Additive - 90ML Gasoline additive used to clean your VW or Audi's fuel system - Genuine Volkswagen Audi - Audi Volkswagen

90ML Gasoline additive used to clean your VW or Audi's fuel system affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
This item is classified as Hazardous Materials and requires special shipping and handling. We cannot ship this item out of the US or with priority shippi

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
1895145
Mfg#:
G001770A2
In Stock
4% off MSRP

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

$12.29

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

$11.78 USD
Free Shipping
on orders $49 and up

M14 Wheel Stud Kit - Black - Set Of 20

ES#4487785 - VAG-STUD-KIT-20 - M14 Wheel Stud Kit - Black - Set Of 20 - M14x1.5x75mm with conical nuts - Vargas Turbo Technologies - Audi Volkswagen

M14x1.5x75mm with conical nuts affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Vargas Turbo Technologies - Corporate Logo
ES#:
4487785
Mfg#:
VAG-STUD-KIT-20
Ships in 9 Business Days
Auto Notify
$137.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Front & Rear Brake Pad Set

ES#3969916 - 8w0698151adKT - Front & Rear Brake Pad Set - Factory replacement pads for a stock feel, includes front and rear pads - Genuine Volkswagen Audi - Audi

Factory replacement pads for a stock feel, includes front and rear pads affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3969916
Mfg#:
8W0698151ADKT
Ships in 1 Business Day
$458.61 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

17" Style 803 Wheels - Set Of Four

ES#2748501 - 803-2kt1 - 17" Style 803 Wheels - Set Of Four - 17"x9" ET30 66.6CB 5x112 - Silver with Machined Lip - Alzor - Audi Mercedes Benz

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!
Please make sure ET30 will clear your calipers. Spacers may be required for proper installation.

Brand:
Alzor - Corporate Logo
ES#:
2748501
Mfg#:
803-2KT1
In Stock
ON SALE! SAVE 25%
$1033.32

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

$774.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

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Manufacturer names and/or part numbers are used only for identification purposes.

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