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
OXYGEN SENSOR

Walker Products Inc. - Sensors

OXYGEN SENSOR

E

Extreme Dimensions

2006-2008 Audi A4 S4 B7 Carbon AF-1 Hood ( CFP ) - 1 Piece

MOTORAD auto part

MOTORAD

ENGINE CRANKSHAFT POSITION SENSOR

W

Walker Products Inc. - Sensors

ENGINE VARIABLE VALVE TIMING (VVT)

STANDARD IGN auto part

STANDARD IGN

INTERMOTOR SWITCH - POWER

W

Walker Products Inc. - Sensors

OXYGEN SENSOR

COLORSMART 4LED GLOW POD BLACK KITSMARTPHONE CONTROLLED W/BRAIN BOX IP68 12V W

Race Sport

COLORSMART 4LED GLOW POD BLACK KITSMARTPHONE CONTROLLED W/BRAIN BOX IP68 12V W

WAGNER BRAKE auto part

WAGNER BRAKE

BRAKE ROTOR

MOTORAD auto part

MOTORAD

THERMOSTAT

DAYCO HYDRAULIC auto part

DAYCO HYDRAULIC

TENSIONER

S

STANDARD IGN

PARKING ASSIST SENSOR

STANDARD IGN auto part

STANDARD IGN

RELAY

VALEO light bar

VALEO

V-RF7 LED LIGHT BAR SPOT KIT

OXYGEN SENSOR

Walker Products Inc. - Sensors

OXYGEN SENSOR

Extreme Dimensions auto part

Extreme Dimensions

2009-2012 Audi A4 B8 Duraflex Dante Rear Wing Spoiler - 1 Piece

TRAKMOTIVE auto part

TRAKMOTIVE

NEW CV AXLE

TRAKMOTIVE auto part

TRAKMOTIVE

NEW CV AXLE

T

TIMKEN

SL260529;A/AM-SRC SEAL

OXYGEN SENSOR

Walker Products Inc. - Sensors

OXYGEN SENSOR

Extreme Dimensions auto part

Extreme Dimensions

2006-2008 Audi A4 S4 B7 4DR Duraflex RS4 Wide Body Front Fenders - 2 Piece

Extreme Dimensions auto part

Extreme Dimensions

2008-2015 Lexus LX570 Urethane AF-1 Wide Body Door Caps ( PUR-RIM ) - 4 Piece (S)

E

Extreme Dimensions

2006-2008 Audi A4 B7 Carbon Creations DTM Look Front Under Spoiler Air Dam Lip Splitter - 1 Piece

W

WOLF PROD.

LE AUDI A4

E

Extreme Dimensions

2006-2008 Audi A4 B7 4DR Duraflex DTM Look Rear Bumper Cover - 1 Piece

MOTORAD auto part

MOTORAD

ENGINE CRANKSHAFT POSITION SENSOR

E

Extreme Dimensions

2006-2008 Audi A4 S4 B7 Carbon Creations OEM Look Hood - 1 Piece

OXYGEN SENSOR

Walker Products Inc. - Sensors

OXYGEN SENSOR

E

Extreme Dimensions

2006-2008 Audi A4 S4 B7 Duraflex RS4 Wide Body Front Bumper Cover - 1 Piece

MASS AIR FLOW SENSOR

Walker Products Inc. - Sensors

MASS AIR FLOW SENSOR

WAGNER BRAKE auto part

WAGNER BRAKE

CERAMIC BRAKE PADS

E

Extreme Dimensions

2020-2023 Audi A4 S4 Duraflex Elver Front Lip Spoiler Air Dam - 1 Piece

WAGNER BRAKE auto part

WAGNER BRAKE

H.I.D REPLACEMENT BULB

Extreme Dimensions bumper

Extreme Dimensions

2006-2008 Audi A4 B7 4DR Duraflex DTM Look Body Kit - 4 Piece - Includes DTM Look Front Bumper Cover (105035) DTM Look Rear Bumper Cover (105037) R-1 Side Skirts Rocker Panels (100290)

TRAKMOTIVE auto part

TRAKMOTIVE

NEW CV AXLE

WAGNER BRAKE auto part

WAGNER BRAKE

CERAMIC DISC PAD SET

S

STANDARD IGN

INTERMOTOR VARIABLE VALVE TIMING SO

TIMKEN auto part

TIMKEN

CLUTCH RELEASE BEARING

STANDARD IGN auto part

STANDARD IGN

AIR CHARGE TEMPERATURE SENSOR

DEA PRODUCTS auto part

DEA PRODUCTS

TRANSMISSION MOUNT

R

R/M BRAKES

BRAKE PAD SET

FOUR SEASONS auto part

FOUR SEASONS

PRESSURE SWITCH

DELPHI auto part

DELPHI

CTRL ARM & BALL JNT ASSEM

R auto part

R/M BRAKES

BRAKE PAD SET

B

BLACK HORSE

2009-2016 AUDI A4 TRIMS-PILLAR POST

DELPHI auto part

DELPHI

CTRL ARM & BALL JNT ASSEM

DELPHI auto part

DELPHI

CTRL ARM & BALL JNT ASSEM

L

LEBRA

MASK AUDI A4 96-99

DEA PRODUCTS auto part

DEA PRODUCTS

TRANSMISSION MOUNT

A

A1 REMFG INC

AUDI/VOLKSWAGEN 02-96

D

DELPHI

CONTROL ARM AND BALL JOINT ASSEMBLY

COVERKING auto part

COVERKING

CARCVR A4 SED STORMS00-04

LSD (Lambo Style Doors) auto part

LSD (Lambo Style Doors)

LAMBO DOORS 95+ AUDI A4

B

BLACK HORSE

PILLAR POST TRIMS

DELPHI control arms

DELPHI

SUSPENSION CONTROL ARM AND BALL JOI

TYC auto part

TYC

0912 AD A.4/S.4 SDN/0911 A.6/S.6 F.L RH

TYC auto part

TYC

1316 AD A4 W/O CURVE LIGHT HID H.L LH

TYC auto part

TYC

LH HEADLAMP ASSY COMPOSITE HID AUDI A4 20172019

SPEC D TUNING auto part

SPEC D TUNING

96-99 A4 HALO LED PROJECT

TYC auto part

TYC

2122 TY COROLLA HYBRID AT 1R PA RADIATOR

TYC headlights

TYC

CAPA 1217 AD A5/S5 W/O CURVE LTG HID HEADLIGHT ASSY RH

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