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 Parts
8164 parts available
Shop aftermarket parts for the Audi A4. Verified fitment, free shipping, 30-day returns.

DEA PRODUCTS
TRANSMISSION MOUNT

STANDARD IGN
INJECTOR
DELPHI
CTRL ARM
A1 REMFG INC
AUDI/VOLKSWAGEN 02-96
DELPHI
CONTROL ARM AND BALL JOINT ASSEMBLY

DELPHI
CTRL ARM

COVERKING
CARCVR A4 SED STORMS00-04
CARTER
AUDI A4 2017-2019

STANDARD IGN
SPEED SENSOR
A1 REMFG INC
NEW CV DRIVE AXLES

LSD (Lambo Style Doors)
LAMBO DOORS 95+ AUDI A4
BLACK HORSE
PILLAR POST TRIMS

R/M BRAKES
BRAKE PAD SET

DELPHI
FUEL PUMP MODULE ASSEM

DELPHI
SUSPENSION CONTROL ARM AND BALL JOI

DELPHI
MASS AIR FLOW SENSOR-PROBE ONLY

FOUR SEASONS
RESISTOR BLOCK

DELPHI
MAF SENSOR - PROBE ONLY

DELPHI
MAF SENSOR - PROBE ONLY

DELPHI
OXYGEN SENSOR

DELPHI
ABS WHEEL SPEED SENSOR

FOUR SEASONS
NIPP 6SEU14C COMP W/CLUT

DEA PRODUCTS
MOTOR MOUNT
A1 REMFG INC
NEW POWER STEERING PUMP W/O RESERVO

A1 REMFG INC
IMPORT ECC
A1 REMFG INC
NEW TURBOCHARGERS
A1 REMFG INC
PARKING BRAKE MOTORS

Belak Industries
Belak 17x11 / 7.25in BS / 5x112 BP / Low Pad / Series 2 Wheel - Single Beadlock
B&G Suspension
SPRT SPNSN AUDI A4 96-01
B&G Suspension
SPRT SPRNG AU A4 QT 04-08

B&G Suspension
SPRT SPRNG AUDI A4 04-08
B&G Suspension
SPRT SPNSN AUDI A2 96-02

A1 REMFG INC
IMP RACK & PINION/POWER
A1 REMFG INC
IMPORT ECC

Samco
Samco Audi A4 1800 Turbo B5 AEB/ATW/AWM/AVJ (1) Induction Hose (WHITE)
Samco
Samco Audi A4 1800 Turbo B5 AEB/ATW/AWM/AVJ (1) Induction Hose (NINJAGREENCAMO)

TYC
0509 AD A.4 QATRO 2.0/3.2L FUEL MODULE

Garrett Turbos
TURBOCHARGER SERV

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

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

A1 REMFG INC
AUDI A5 QUATTRO 11-08 F/L

Garrett Turbos
TURBOCHARGER ORIGINAL REMAN GTA2052V VW GROUP

TYC
LH HEADLAMP ASSY COMPOSITE HID AUDI A4 20172019

SPEC D TUNING
96-99 A4 HALO LED PROJECT

TYC
2122 TY COROLLA HYBRID AT 1R PA RADIATOR

TYC
CAPA 1217 AD A5/S5 W/O CURVE LTG HID HEADLIGHT ASSY RH
A1 REMFG INC
UNLOAD BRAKE CALIPER IMP
A1 REMFG INC
NEW CV DRIVE AXLES

Sherman Parts
RADIATOR SUPPORT PLUGIN HYBRID HONDA CLARITY 1821 CAPA
A1 REMFG INC
FRICTION CHOICE CALIPERS

TYC
RH HEADLAMP ASSY COMPOSITE SEDAN/WAGON; HALOGEN AUDI A4 20092012; HALOGEN AUDI S4 20102012
A1 REMFG INC
MASS AIR FLOW

A1 REMFG INC
MASS AIRFLOW SENSOR

TYC
1720 AD A.4/S.4 SDN 2.0L W/TUR L4 AMT 1R PA RAD

Sherman Parts
HOOD PANEL ASSY GEN 3; STEEL AUDI A4 0508
TYC
CAPA 0912 AD A.4/S.4 HALGN HEADLAMP ASSY LH
TYC
1316 AD A4 W/O CURVE LIGHT HID H.L RH

TYC
CAPA 0912 AD A.4/S.4 SDN 0911 A.6/S.6 FOGLAMP ASSY RH

TYC
0912 AD A.4/S.4 HID W/O CURVE H.L RH

TYC
LH HEADLAMP ASSY COMPOSITE SEDAN/WAGON; HALOGEN AUDI A4 20092012; HALOGEN AUDI S4 20102012
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