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?

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.

Free Shipping
30-Day Returns
BRAKE PAD SET DISC BRAKE

Hella

BRAKE PAD SET DISC BRAKE

H

Hella

INTERIOR BLOWER

H

Hella

CONDENSER AIR CONDITIONING

NITE-LUX P13

Putco

NITE-LUX P13

INTERIOR BLOWER

Hella

INTERIOR BLOWER

S

SPYDER

1215 AUDI A4 HID NONAFS OE PROJECTOR HEADLIGHTS LEFT

SPYDER black headlights

SPYDER

0608 AUID A4 (HALOGEN ONLY DOES NOT FIT HID MODELS ) OEM STYLE HEADLIGHTS BLACK

S

SPYDER

0608 AUID A4 (HALOGEN ONLY DOES NOT FIT HID MODELS ) PASSENGER SIDE HEADLIGHTS

M

Mahle

AUDI 4172CC 4.2L 2003-2004 RS4

STARTER 12 V

Hella

STARTER 12 V

SPYDER headlights

SPYDER

1719 AUDI A4 S4 XENON HID LED DRL OE HEADLIGHTS LEFT

WIPER TRANSMISSION

Dorman

WIPER TRANSMISSION

H

Hella

BRAKE CALIPER

SPYDER headlights

SPYDER

1215 AUDI A4 HID NONAFS OE PROJECTOR HEADLIGHTS RIGHT

CSF 16-21 BMW M5 (F90) / 17-21 BMW M8 (F91/F92/F93) Twin Charge-Air-Cooler Set - Nitro Yellow

CSF

CSF 16-21 BMW M5 (F90) / 17-21 BMW M8 (F91/F92/F93) Twin Charge-Air-Cooler Set - Nitro Yellow

NITELUX LED P13W SGL UV

Putco

NITELUX LED P13W SGL UV

BRAKE PAD SET DISC BRAKE

Hella

BRAKE PAD SET DISC BRAKE

GDI FUEL INJECTOR

Bosch

GDI FUEL INJECTOR

DISC BRAKE ROTOR

Hella

DISC BRAKE ROTOR

CRANKSHAFT SENSOR VW/AUDI

Hella

CRANKSHAFT SENSOR VW/AUDI

H

Hella

ADDITIONAL WATER PUMP 8TW

Hella auto part

Hella

STARTER 12V

Hella auto part

Hella

STARTER 12V

STARTER 12V

Hella

STARTER 12V

EBC black auto part

EBC

EBC 08-15 Audi A4 Quattro Apollo Balanced Big Brake Kit (Front) - Black

DISC BRAKE ROTOR

Hella

DISC BRAKE ROTOR

Evaporator

Mahle

Evaporator

Hella auto part

Hella

BULB 12V 18W BA15S S8

S

Stoptech

ORIGINAL PERFORMANCE

Dorman auto part

Dorman

HEADLAMP - LEFT

H

Hella

BRAKE CALIPER

WIPER TRANSMISSION

Dorman

WIPER TRANSMISSION

WIPER ARM

Dorman

WIPER ARM

CONTROL ARM

Dorman

CONTROL ARM

H

Hella

CONDENSER AIR CONDITIONING

Dorman auto part

Dorman

HEADLAMP - RIGHT

H

Hella

STARTER

ENGINE CAMSHAFT POSITION SENSOR

NGK

ENGINE CAMSHAFT POSITION SENSOR

Engine Cylinder Head Gasket Set - 02-31955-01

Victor Reinz

Engine Cylinder Head Gasket Set - 02-31955-01

WIPER MOTOR

Bosch

WIPER MOTOR

CONTROL ARM

Dorman

CONTROL ARM

H

Hella

COMPRESSOR AIR CONDITIONING

Rhino-Rack USA black roof rack

Rhino-Rack USA

Rhino-Rack Vortex Aero Bar - 50in - Single - Black

K&N Engineering air filter

K&N Engineering

K&N 08 Audi A5 / S5 V6-3.2L / V8-4.2L Drop In Air Filter

S

Stoptech

Centric Premium Control Arm and Ball Joint - Front Left

S

Stoptech

Centric Premium Control Arm and Ball Joint - Front Right

Stoptech springs

Stoptech

Centric Premium Spring Seat and Insulator - Front

Rhino-Rack Sportz Bar 1180mm Black - U

Rhino-Rack USA

Rhino-Rack Sportz Bar 1180mm Black - U

R

R1 Concepts

R1 19-21 Subaru Forester Front Left Drilled Black Brake Rotor

R1 18-20 Genesis G80 Front Left Slotted Black Brake Rotor

R1 Concepts

R1 18-20 Genesis G80 Front Left Slotted Black Brake Rotor

R1 2016-2025 Audi A6 Quattro Front R1 Euro Ceramic Pads & Hardware Kit

R1 Concepts

R1 2016-2025 Audi A6 Quattro Front R1 Euro Ceramic Pads & Hardware Kit

R1 2008-2017 Audi A5 Front R1 Optimum OE Pads & Hardware Kit

R1 Concepts

R1 2008-2017 Audi A5 Front R1 Optimum OE Pads & Hardware Kit

R1 2008-2017 Audi A4 Quattro Front R1 Euro Ceramic Pads & Hardware Kit

R1 Concepts

R1 2008-2017 Audi A4 Quattro Front R1 Euro Ceramic Pads & Hardware Kit

R1 98-08 Audi A6 (USA/Canada) Front Euro Ceramic Pads & Hardware Kit

R1 Concepts

R1 98-08 Audi A6 (USA/Canada) Front Euro Ceramic Pads & Hardware Kit

R1 00-09 Audi A4 (USA/Canada) Front Optimum OE Pads & Hardware Kit

R1 Concepts

R1 00-09 Audi A4 (USA/Canada) Front Optimum OE Pads & Hardware Kit

K&N Engineering oil filter

K&N Engineering

K&N Oil Filter Automotive 08-10 VW Passat

R

R1 Concepts

R1 96-05 Audi A4 Quattro Rear Right Drilled Black Brake Rotor

B

Brembo

Brembo OE Ceramic Disc Brake Kit

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

R1 Concepts

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

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

R1 Concepts

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

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