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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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Titanium Ball Seat Wheel Bolt - 14x1.5x27mm - Set Of 20

ES#3570214 - 025384ecs02-0120 - Titanium Ball Seat Wheel Bolt - 14x1.5x27mm - Set Of 20 - Lightweight, corrosion resistant, high performance lug bolts - ECS - Audi Volkswagen

Lightweight, corrosion resistant, high performance lug bolts 10X Entries Into Our F80 M3 Sweepstakes
Stock length bolts for use without spacers.

Brand:
ECS - Corporate Logo
ES#:
3570214
Mfg#:
025384ECS02-0120
In Stock
ON SALE!
$277.99

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

$264.09 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

JHM 3" Cat-Pipe (High Flow Catalyst)

ES#4046023 - B9A45HFC - JHM 3" Cat-Pipe (High Flow Catalyst) - 3.0" T304 Stainless system produces gains of up to 25hp. - JH Motorsports - Audi

3.0" T304 Stainless system produces gains of up to 25hp. For vehicles up through 2020

Brand:
JH Motorsports - Corporate Logo
ES#:
4046023
Mfg#:
B9A45HFC
Ships in 5 Business Days
$399.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Stainless Steel Braided Line Kit

ES#4635698 - 034-303-0015 - Stainless Steel Braided Line Kit - Features telfon linings, stainless steel braided reinforcement, and a protective black PVC covering. - 034Motorsport - Audi

Features telfon linings, stainless steel braided reinforcement, and a protective black PVC covering. 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
4635698
Mfg#:
034-303-0015
In Stock
$195.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Connecting Rod - Priced Each

ES#4768528 - 06H198401D - Connecting Rod - Priced Each - Direct replacement connecting rod, includes rod bolts & cap - Kolbenschmidt - Audi Volkswagen

Direct replacement connecting rod, includes rod bolts & cap

Brand:
Kolbenschmidt - Corporate Logo
ES#:
4768528
Mfg#:
06H198401D
In Stock
$210.99

This product was last offered at the strikethrough price on
05-12-2026

$140.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Thermostat

ES#4671694 - 06L121111N - Thermostat - Includes housing and gasket - Genuine Volkswagen Audi - Audi Volkswagen

Includes housing and gasket

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4671694
Mfg#:
06L121111N
In Stock
23% off MSRP

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

$586.67

This product was last offered at the strikethrough price on
08-13-2026

$452.91 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear YellowStuff Performance Brake Pad Set

ES#4031325 - DP42254R - Rear YellowStuff Performance Brake Pad Set - EBC's premium sport street pad that offers high friction levels and heat fade resistance - EBC - Audi

EBC's premium sport street pad that offers high friction levels and heat fade resistance 2X Entries Into Our F80 M3 Sweepstakes

Brand:
EBC - Corporate Logo
ES#:
4031325
Mfg#:
DP42254R
In Stock
5% off MSRP

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

$151.59

This product was last offered at the strikethrough price on
10-09-2026

$144.01 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

H8/H11 Premium LED Conversion Kit - Series 2

ES#4875816 - 003452LB04-06 - H8/H11 Premium LED Conversion Kit - Series 2 - Set of 2 36,000lm, 160W combined plug and play LED headlight bulbs - ZiZa - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Set of 2 36,000lm, 160W combined plug and play LED headlight bulbs 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ZiZa - Corporate Logo
ES#:
4875816
Mfg#:
003452LB04-06
In Stock
ON SALE! SAVE 10%
$89.99

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

$80.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear V5 Slotted Brake Rotors - Set (330x22)

ES#4668333 - 4H0615601Q-S - Rear V5 Slotted Brake Rotors - Set (330x22) - Precision manufactured for consistent stopping power during high performance driving. Featuring a matte black zinc coating for corrosion protection. - ECS - Audi

Precision manufactured for consistent stopping power during high performance driving. Featuring a matte black zinc coating for corrosion protection. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
4668333
Mfg#:
4H0615601Q-S
In Stock
ON SALE!
$374.99

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

$354.03 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oil Separator/PCV Valve

ES#4691260 - 06K103495BL - Oil Separator/PCV Valve - Also called the "breather valve" or "oil separator" - Hamburg Tech - Audi Volkswagen

Also called the "breather valve" or "oil separator" We Price Match - Give Us A Call or Chat!
For vehicles with CYMC engine code only

Brand:
Hamburg Tech - Corporate Logo
ES#:
4691260
Mfg#:
06K103495BL
In Stock
$89.99

This product was last offered at the strikethrough price on
06-10-2026

$83.95 USD
Free Shipping
on orders $49 and up

NGK Racing Spark Plugs - Set Of Four

ES#2998993 - R7437-8KT - NGK Racing Spark Plugs - Set Of Four - Upgraded racing plugs for your Gen3 TSI engine - NGK - Audi Volkswagen

Upgraded racing plugs for your Gen3 TSI engine We Price Match - Give Us A Call or Chat!
For models with engine code CVKB,CYMC, DBPA,DEMA, DKYA,DEMB, CVKC Only

Brand:
NGK - Corporate Logo
ES#:
2998993
Mfg#:
R7437-8KT
In Stock
$204.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Rear V5 Plain Brake Rotors - Set (330x22)

ES#4668334 - 4H0615601Q-P - Rear V5 Plain Brake Rotors - Set (330x22) - Precision manufactured and featuring a GeoSpec corrosion-resistant coating - ECS - Audi

Precision manufactured and featuring a GeoSpec® corrosion-resistant coating 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
4668334
Mfg#:
4H0615601Q-P
In Stock
ON SALE! SAVE 15%
$207.99

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

$175.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Billet Aluminum Rear Main Seal Upgrade

ES#3470640 - 462-103-171F - Billet Aluminum Rear Main Seal Upgrade - Permanent fix for that leaking rear main seal - iABED Industries - Audi Volkswagen

Permanent fix for that leaking rear main seal

Brand:
iABED Industries - Corporate Logo
ES#:
3470640
Mfg#:
462-103-171F
Back Ordered
$99.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Ball Seat Wheel Bolt - 14x1.5x40mm - Priced Per Pair

ES#4164435 - S17D40R13ZNNI2 - Ball Seat Wheel Bolt - 14x1.5x40mm - 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 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
4164435
Mfg#:
S17D40R13ZNNI2
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

Front DD23 "Daily Driver" Ceramic Brake Pad Set

ES#4739036 - DD23-1897 - Front 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! 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
4739036
Mfg#:
DD23-1897
Ships on Dec 4, 2026
ON SALE! SAVE 20%
$179.99

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

$143.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Audi B9 A4/S4 Front Lip Spoiler - Gloss Black & Grille Accent Set - Gloss Black

ES#4751328 - 028802ECS01EBKT - Audi B9 A4/S4 Front Lip Spoiler - Gloss Black & Grille Accent Set - Gloss Black - Upgrade your exterior styling! - Enthusiast Bundles - Audi

Upgrade your exterior styling! Don't See A Bundle You Want - Give Us A Call Or Chat - We Will Make One!
For S-Line models only. Fits up to 2019 model year with *pre-facelift* front bumpers

Brand:
Enthusiast Bundles - Corporate Logo
ES#:
4751328
Mfg#:
028802ECS01EBKT
In Stock
ON SALE! SAVE 39%
$657.78

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

$399.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

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