QUATTRO MEETS PRACTICALITY

B5 through B9 — Audi's compact sedan with available Quattro AWD and turbo power.

Audi A4 HERITAGE

THE QUATTRO COMPACT

The Audi A4 has been the German compact sport sedan since 1994. The B5 (1.8T) launched the tuner-friendly chassis, the B6/B7 added the K04 turbo upgrade culture, and the B8/B9 brought EA888 turbocharged 2.0T engines that share parts with the VW Golf R / Jetta GLI.

MOTORMIA A4 builds span B5 1.8T stage-3 tuners, B7 RS4 V8 swap projects, B8/B9 ECU-tuned dailies, and the S4 supercharged V6 generation. Many parts cross-fit with VW MK6/MK7 platforms.

Audi A4 ON MOTORMIA

THE NUMBERS

3,135
Parts that fit
3,000+
MOTORMIA Builds
EBC
#1 brand by SKUs
$711
Average MSRP

READY TO BUILD YOUR AUDI A4?

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Audi A4 Category:exterior components Parts

2182 parts available

Shop aftermarket parts for the Audi A4. Verified fitment, free shipping, 30-day returns.

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INTERMOTOR SENSOR - PRESS

STANDARD IGN

INTERMOTOR SENSOR - PRESS

R1 00-09 Audi A4 (USA/Canada) Rear Right Drilled & Slotted Silver Brake Rotor

R1 Concepts

R1 00-09 Audi A4 (USA/Canada) Rear Right Drilled & Slotted Silver Brake Rotor

R1 98-09 Audi A4 (USA/Canada) Front Right Drilled & Slotted Silver Brake Rotor

R1 Concepts

R1 98-09 Audi A4 (USA/Canada) Front Right Drilled & Slotted Silver Brake Rotor

R1 96-05 Audi A4 Quattro Rear Left Drilled & Slotted Geoperformance Rotor

R1 Concepts

R1 96-05 Audi A4 Quattro Rear Left Drilled & Slotted Geoperformance Rotor

R1 17-19 Audi A4 Quattro Front Left Geoperformance Rotor

R1 Concepts

R1 17-19 Audi A4 Quattro Front Left Geoperformance Rotor

R1 08-25 Audi A5 Front Left Drilled & Slotted Geoperformance Rotor

R1 Concepts

R1 08-25 Audi A5 Front Left Drilled & Slotted Geoperformance Rotor

R1 08-25 Audi A4 (USA/Canada) Rear Right Drilled & Slotted Geoperformance Rotor

R1 Concepts

R1 08-25 Audi A4 (USA/Canada) Rear Right Drilled & Slotted Geoperformance Rotor

R1 08-12 Audi Q5 (USA/Canada) Front Right Drilled & Slotted Geoperformance Rotor

R1 Concepts

R1 08-12 Audi Q5 (USA/Canada) Front Right Drilled & Slotted Geoperformance Rotor

R1 97-06 Audi A4 (USA/Canada) Front Left Drilled & Slotted Geoperformance Rotor

R1 Concepts

R1 97-06 Audi A4 (USA/Canada) Front Left Drilled & Slotted Geoperformance Rotor

R

R1 Concepts

R1 96-08 Audi A4 (USA/Canada) Rear Left Drilled & Slotted Geo-Carbon Rotor

R1 00-09 Audi A4 Quattro Rear Drilled & Slotted Silver Brake Rotor Set w/Ceramic Pads and Hardware

R1 Concepts

R1 00-09 Audi A4 Quattro Rear Drilled & Slotted Silver Brake Rotor Set w/Ceramic Pads and Hardware

R1 08-12 Audi A5 Front Left Drilled & Slotted Geoperformance Rotor

R1 Concepts

R1 08-12 Audi A5 Front Left Drilled & Slotted Geoperformance Rotor

R1 96-05 Audi A4 Quattro Rear Right Drilled & Slotted Geoperformance Rotor

R1 Concepts

R1 96-05 Audi A4 Quattro Rear Right Drilled & Slotted Geoperformance Rotor

R1 11-17 Audi Q5 (Mexico) Front Right Drilled & Slotted Geo-Carbon Rotor

R1 Concepts

R1 11-17 Audi Q5 (Mexico) Front Right Drilled & Slotted Geo-Carbon Rotor

R

R1 Concepts

R1 00-09 Audi A4 (Mexico) Rear Left Drilled & Slotted Geo-Carbon Rotor

R

R1 Concepts

R1 17-19 Audi A4 Quattro Front Right Geoperformance Rotor

R1 00-08 Audi A4 Quattro Rear Left Drilled & Slotted Geoperformance Rotor

R1 Concepts

R1 00-08 Audi A4 Quattro Rear Left Drilled & Slotted Geoperformance Rotor

R1 97-06 Audi A6 (USA/Canada) Front Right Drilled & Slotted Geoperformance Rotor

R1 Concepts

R1 97-06 Audi A6 (USA/Canada) Front Right Drilled & Slotted Geoperformance Rotor

R1 11-17 Audi A4 Allroad Front Left Drilled & Slotted Geoperformance Rotor

R1 Concepts

R1 11-17 Audi A4 Allroad Front Left Drilled & Slotted Geoperformance Rotor

R1 92-08 Audi A6 Quattro Front Left Drilled & Slotted Geoperformance Rotor

R1 Concepts

R1 92-08 Audi A6 Quattro Front Left Drilled & Slotted Geoperformance Rotor

R1 17-19 Audi A4 Quattro Front Left Drilled & Slotted Silver Brake Rotor

R1 Concepts

R1 17-19 Audi A4 Quattro Front Left Drilled & Slotted Silver Brake Rotor

R1 00-08 Audi A4 Quattro Rear Left Slotted Black Brake Rotor

R1 Concepts

R1 00-08 Audi A4 Quattro Rear Left Slotted Black Brake Rotor

R1 92-08 Audi A4 (USA/Canada) Front Left Drilled & Slotted Silver Brake Rotor

R1 Concepts

R1 92-08 Audi A4 (USA/Canada) Front Left Drilled & Slotted Silver Brake Rotor

R1 2008-2025 Audi A4 (Mexico) Rear Right Drilled & Slotted Black Brake Rotor

R1 Concepts

R1 2008-2025 Audi A4 (Mexico) Rear Right Drilled & Slotted Black Brake Rotor

R1 00-08 Audi A4 Quattro Rear Right Drilled Black Brake Rotor

R1 Concepts

R1 00-08 Audi A4 Quattro Rear Right Drilled Black Brake Rotor

R1 17-19 Audi A4 Quattro Front Left Drilled & Slotted Black Brake Rotor

R1 Concepts

R1 17-19 Audi A4 Quattro Front Left Drilled & Slotted Black Brake Rotor

R1 2011-2017 Audi A4 Allroad Front Left Drilled & Slotted Black Brake Rotor

R1 Concepts

R1 2011-2017 Audi A4 Allroad Front Left Drilled & Slotted Black Brake Rotor

R1 96-05 Audi A4 Quattro Rear Left Drilled & Slotted Black Brake Rotor

R1 Concepts

R1 96-05 Audi A4 Quattro Rear Left Drilled & Slotted Black Brake Rotor

R1 2011-2017 Audi A4 (USA/Canada) Front Right Drilled & Slotted Black Brake Rotor

R1 Concepts

R1 2011-2017 Audi A4 (USA/Canada) Front Right Drilled & Slotted Black Brake Rotor

R

R1 Concepts

R1 00-08 Audi A4 Quattro Rear Left Drilled Black Brake Rotor

R

R1 Concepts

R1 00-09 Audi A4 Quattro Rear Left Drilled & Slotted Black Brake Rotor

INTRMTR SWITCH-MISC

STANDARD IGN

INTRMTR SWITCH-MISC

R1 08-25 Audi A4 (Mexico) Front Left Drilled & Slotted Black Brake Rotor

R1 Concepts

R1 08-25 Audi A4 (Mexico) Front Left Drilled & Slotted Black Brake Rotor

R1 97-06 Audi A4 Quattro Front Right Drilled & Slotted Black Brake Rotor

R1 Concepts

R1 97-06 Audi A4 Quattro Front Right Drilled & Slotted Black Brake Rotor

R

R1 Concepts

R1 92-08 Audi A4 (USA/Canada) Front Right Drilled & Slotted Black Brake Rotor

R1 97-06 Audi A6 (USA/Canada) Front Left Drilled & Slotted Silver Brake Rotor

R1 Concepts

R1 97-06 Audi A6 (USA/Canada) Front Left Drilled & Slotted Silver Brake Rotor

R1 17-19 Audi A4 Quattro Front Right Drilled & Slotted Black Brake Rotor

R1 Concepts

R1 17-19 Audi A4 Quattro Front Right Drilled & Slotted Black Brake Rotor

R1 00-08 Audi A4 Quattro Rear Right Drilled & Slotted Geoperformance Rotor

R1 Concepts

R1 00-08 Audi A4 Quattro Rear Right Drilled & Slotted Geoperformance Rotor

R1 00-09 Audi A4 Quattro Rear Right Drilled & Slotted Geoperformance Rotor

R1 Concepts

R1 00-09 Audi A4 Quattro Rear Right Drilled & Slotted Geoperformance Rotor

R1 98-09 Audi S4 Front Right Slotted Black Brake Rotor

R1 Concepts

R1 98-09 Audi S4 Front Right Slotted Black Brake Rotor

R

R1 Concepts

R1 00-08 Audi A4 Quattro Rear Right Slotted Black Brake Rotor

R1 00-08 Audi A4 (USA/Canada) Rear Right Drilled & Slotted Black Brake Rotor

R1 Concepts

R1 00-08 Audi A4 (USA/Canada) Rear Right Drilled & Slotted Black Brake Rotor

DFC 16-25 Audi Q3 Rear Drilled & Slotted Geoperformance Rotors

R1 Concepts

DFC 16-25 Audi Q3 Rear Drilled & Slotted Geoperformance Rotors

R1 08-25 Audi A4 Quattro Rear Drilled & Slotted Silver Brake Rotor Set

R1 Concepts

R1 08-25 Audi A4 Quattro Rear Drilled & Slotted Silver Brake Rotor Set

INTRMTR RELAY

STANDARD IGN

INTRMTR RELAY

DFC 08-25 Audi A4 Allroad Rear Drilled & Slotted Geoperformance Rotors

R1 Concepts

DFC 08-25 Audi A4 Allroad Rear Drilled & Slotted Geoperformance Rotors

DFC 11-17 Audi A4 Front Drilled & Slotted Geoperformance Rotors

R1 Concepts

DFC 11-17 Audi A4 Front Drilled & Slotted Geoperformance Rotors

R

R1 Concepts

R1 97-06 Audi A6 Quattro Front Right Drilled & Slotted Silver Brake Rotor

SPEED SENSOR

STANDARD IGN

SPEED SENSOR

S

STANDARD IGN

INTRMTR SNSR-AIR TEMP

S

STANDARD IGN

CAMSHAFT SENSOR

MASS AIR FLOW SENSOR

Walker Products Inc. - Sensors

MASS AIR FLOW SENSOR

E

Extreme Dimensions

Universal Carbon Creations DriTech Vortex Canards - 4 Piece (S)

E

Extreme Dimensions

AUDI A4 OTG FRONT BUMPER

E

Extreme Dimensions

2006-2008 Audi A4 S4 B7 Duraflex DTM Look Front Bumper Cover - 1 Piece

2009-2012 Audi A4 B8 4DR R-1 Rear Diffuser - 1 Piece

Extreme Dimensions

2009-2012 Audi A4 B8 4DR R-1 Rear Diffuser - 1 Piece

OXYGEN SENSOR

Walker Products Inc. - Sensors

OXYGEN SENSOR

THERMOSTAT

MOTORAD

THERMOSTAT

OXYGEN SENSOR

Walker Products Inc. - Sensors

OXYGEN SENSOR

CERAMIC DISC PAD SET

WAGNER BRAKE

CERAMIC DISC PAD SET

FAQ

Frequently Asked Questions About the Audi A4

What are the best aftermarket parts brands for the Audi A4?

The top brands MOTORMIA owners trust for Audi A4 builds are EBC, PowerStop, H&R, Bilstein, and Magnaflow. The catalog carries 3,135 parts that fit the A4. Use the fitment selector to filter to your specific year and trim, then browse by category or brand.

What's the best trim or sub-model of the Audi A4 to modify?

The most-modified A4 trims are S4 (especially B5 / B7 / B8 / B9 supercharged). These trims typically came with performance-focused suspension, brakes, and engine options that give a higher starting point. That said, the A4's engine family (1.8T, 2.0T EA888, 3.0T supercharged (S4), 4.2 V8 (B7 RS4)) shares aftermarket across most trims, so base-trim builds with the right bolt-ons can match higher trims on power.

What's the typical mod path for a Audi A4?

For most Audi A4 builds, the recommended modification order is: ECU tune → intake → downpipe → suspension → turbo upgrade. This sequence stages upgrades so each mod supports the next — tuning unlocks gains from intake/exhaust, suspension keeps the added power planted. MOTORMIA member builds let you see exact part lists for Audi A4 builds at every power level.

How does the Audi A4 aftermarket compare to the BMW 3 Series?

The Audi A4 is the Quattro AWD compact sedan with the EA888 2.0T platform shared across Audi/VW. On MOTORMIA, 3,135 parts fit the A4 across 3,000+ active member builds, with an average part MSRP of $711. The decision usually comes down to which platform you own — both have full bolt-on catalogs.

Will any Audi A4 part fit my year and trim?

Not always. The Audi A4 has had multiple generations and engine changes (e.g., 1.8T, 2.0T EA888, 3.0T supercharged (S4), 4.2 V8 (B7 RS4)), and parts are generation- and trim-specific. MOTORMIA's catalog uses verified fitment data — every product page shows exactly which years and submodels of the A4 a part fits. Use the fitment selector at the top of any page to pre-filter to your build.

Does MOTORMIA offer returns on Audi A4 parts?

Yes. Most Audi A4 parts on MOTORMIA are eligible for our 30-day return policy provided they're unused, uninstalled, and in original packaging. Special-order parts are flagged with a "Special Order" badge on the product page. Manufacturer warranties are processed through MOTORMIA on your behalf.

MOTORMIA APP

Build your Audi A4 with Mia

Personalized Audi A4 mod recommendations, verified fitment from real A4 owners, and a garage that tracks every part on your build.

  • Mod recommendations tuned to your A4 year, trim, and submodel
  • Verified fitment data from 3,000+ Audi A4 member builds
  • Performance gain estimates based on real-world results
  • Save your garage and track every part you've installed