QUATTRO MEETS PRACTICALITY
B5 through B9 — Audi's compact sedan with available Quattro AWD and turbo power.
Audi A4 HERITAGE
THE QUATTRO COMPACT
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
CATEGORIES
Top product categories for the Audi A4
BRANDS
Top brands for Audi A4 builds
READY TO BUILD YOUR AUDI A4?
Pick your year and trim to shop verified-fit Audi A4 parts.
Shop all Audi A4 parts →Verified Fitment
Audi A4 Category:exterior components Parts
2182 parts available
Shop aftermarket parts for the Audi A4. Verified fitment, free shipping, 30-day returns.

PowerStop
Power Stop 88-92 Audi 80 Rear Z26 Extreme Street Brake Pads w/Hardware

Victor Reinz
MAHLE Original Audi A3 08-06 Valve Cover Gasket
Gates
Gates Micro-V Belts - 4 Ribs - 33.75in Length

Gates
Gates 2008 Audi A6 DriveAlign Idler Pulley

Victor Reinz
MAHLE Original Audi A4 08-06 Valve Cover Gasket (Right)

Putco
Putco Optic 360 - High Power LED Fog Lamp Bulbs - H8

Stoptech
Posi-Quiet 2001 Audi A6/S6 Premium Semi-Metallic Front Brake Pads
Clevite
Clevite VW 1780cc Turbo AEB 1998-02 VW 1896cc Turbo Diesel 1993-02 Main Bearing Set

Putco
Putco Optic 360 - High Power LED Fog Lamp Bulbs - H9

Gates
Gates 05-14 Volkswagen Jetta 5-Cyl. 2.5L Fuel Cap

Victor Reinz
MAHLE Original Audi A4 99-97 Oil Pan Set

Victor Reinz
MAHLE Original Audi 90 95-94 Oil Pan Gasket

Stoptech
Posi-Quiet Volkswagen/Audi Disc Rear Brake Pads

Stoptech
Centric Premium Ceramic Brake Pads w/Shims - Rear

Stoptech
Centric 2001-2009 Audi A4 / 2005-2009 A4 Quattro Standard Rear Brake Rotor

Stoptech
Posi-Quiet 96-1/99 Audi A4 / 98-99 Saab 9-3 & 9-5 / 98-5/99 VW Passat Front Brake Pads
Stoptech
Posi-Quiet 96-97 Audi A4 Premium Ceramic Rear Brake Pads

WeatherTech
WeatherTech 2017+ Audi A4 (Sedan) Front & Rear FloorLiner - Tan

Stoptech
PosiQuiet 09-10 Audi A4 / 10 Audi S4 Deluxe Plus Rear Brake Brake Pads

Stoptech
Centric Posi-Quiet Ceramic Brake Pads w/Shims - Rear

Stoptech
Centric C-Tek Standard Brake Rotor - Rear

CSF
CSF 17-20 Audi A4 2.0L A/C Condenser

Stoptech
Centric Brake Pad Sensor Wires - Rear

Stoptech
Posi-Quiet 09-16 Audi A4/A4 Quattro / 09-17 Audi A5/A5 Quattro Rear Brake Pads w/ Shims and Hardware
Clevite
Clevite Volkswagen 1588cc 1780cc 1781cc 1984cc Engines Con Rod Bearing Set
Stoptech
Centric Premium Ceramic Brake Pads Shims and Hardware - Front

Rhino-Rack USA
Rhino-Rack 09-16 Audi A4 4 Door Sedan Vortex 2500 2 Bar Roof Rack - Black

WeatherTech
WeatherTech 2017+ Audi A4 Sedan Front & Rear FloorLiners - Black

Stoptech
Centric Semi-Loaded Brake Caliper - Front Right

Covercraft
Covercraft Custom Fit Car Covers - Form-Fit Silver Gray

PowerStop
Power Stop 05-09 Audi A4 Rear Semi Coated Rotor

Covercraft
Covercraft Custom Fit Car Covers - Form-Fit Black
PowerStop
Power Stop 96-04 Audi A4 Front Semi Coated Rotor

Stoptech
Centric Brake Pad Sensor Wires - Front

Stoptech
Posi-Quiet 08-09 Audi A4/A4 Quattro/A5/S5 Semi-Metallic Front Brake Pads

PowerStop
Power Stop 06-09 Audi A4 Front Semi Coated Rotor
Rhino-Rack USA
Rhino-Rack 97-01 Audi A4 AVan Heavy Duty CXB 2 Bar Roof Rack - Black

SPYDER
XTune 06-08 Audi A4/S4 Halo Xenon HID Models Driver side headlight HD-JH-AA406-HID-L

Covercraft
Covercraft Custom Fit Car Covers - Form-Fit Bright Red

Covercraft
Covercraft Custom Fit Car Covers - Form-Fit Silver Gray

Covercraft
Covercraft Custom Fit Car Covers - Form-Fit Charcoal Gray

Covercraft
Covercraft Custom Fit Car Covers - Form-Fit Black

Stoptech
Posi-Quiet 16-19 Audi Q7 Premium Semi-Metallic Rear Brake Pads

Covercraft
Covercraft Custom Fit Car Covers - Form-Fit Silver Gray
Stoptech
Prem Ceramic Brake Pad Shims & Hardware

Stoptech
Posi-Quiet Audi 08-11 S5 / / 09-15 A4 Front Ceramic Brake Pads

Stoptech
Centric Premium High Carbon Brake Rotor

Stoptech
Centric Posi-Quiet Semi-Metallic Brake Pads w/Hardware - Rear

Clevite
Clevite VW 1780cc Turbo AEB 1998-02 VW 1896cc Turbo Diesel 1993-02 Main Bearing Set

Covercraft
Covercraft Custom Fit Car Covers - Form-Fit Charcoal Gray

Covercraft
Covercraft Custom Fit Car Covers - Form-Fit Bright Red

Covercraft
Covercraft Custom Fit Car Covers - Form-Fit Silver Gray

Covercraft
Covercraft Custom Fit Car Covers - Form-Fit Metallic Dark Blue

Stoptech
Centric Performance Brake Rotor

Covercraft
Covercraft Custom Fit Car Covers - Form-Fit Bright Red

Covercraft
Covercraft Custom Fit Car Covers - Form-Fit Silver Gray

Covercraft
Covercraft Custom Fit Car Covers - Form-Fit Metallic Dark Blue

Covercraft
Covercraft Custom Fit Car Covers - Form-Fit Charcoal Gray

Covercraft
Covercraft Custom Fit Car Covers - Form-Fit Black

Covercraft
Covercraft Custom Fit Car Covers - Form-Fit Bright Red
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