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.

FOUR SEASONS
FLOOR MODE ACTUATOR

FOUR SEASONS
PRESSURE SWITCH

DELPHI
CTRL ARM & BALL JNT ASSEM

DEA PRODUCTS
MOUNT FRONT RIGHT

DELPHI
CTRL ARM & BALL JNT ASSEM

GAS TANK CO
OXYGEN SENSOR
COVERKING
CUSTOM TAILORED DASHBOARD

R/M BRAKES
BRAKE PAD SET

R/M BRAKES
BRAKE PADS

DELPHI
ABS WHEEL SPEED SENSOR

DELPHI
AIR CHARGE TEMPERATURE SENSOR

DEA PRODUCTS
MOUNT FRONT LEFT RIGHT

DELPHI
TIE ROD END ASSEM

DELPHI
MANIFOLD ABSOLUTE PRESSURE SENSOR

Samco
Samco Turbo Clamp Kit A4 1800 Turbo FWD (2001) Man Trans AWM B5 US Spec (4)

Dana
ENGINE HEAD GASKET

Sherman Parts
RH COVER OUTER GRILLE AUDI A4 9699 (TO VIN#X199999)

Dana
ENGINE HEAD GASKET
A1 REMFG INC
HONDA R/FT '97-92

A1 REMFG INC
FRICTION CHOICE CALIPERS

Sherman Parts
RH FRT FENDER INR PANEL W/SLINE PKG; MAT: PE/VACUUM FORM;OEM:PP+EPDM/INJECTION AUDI A4/S4 1724

TYC
CAPA 0508 AD A4 FRT REFLECTOR ASSY LH

TYC
RH FRONT SIDE REFLECTOR AUDI A4 20052008

TYC
CAPA 0508 AD A4 FRT REFLECTOR ASSY RH

A1 REMFG INC
CALIPER BRACKETS

Sherman Parts
RH FRONT BUMPER INSERT FOG LAMP BEZEL; W/O ADAPTIVE CRUISE CONTROL; W/O SLINE PKG AUDI A4 1316

Dana
ENGINE HEAD GASKET
Dana
ENGINE HEAD GASKET

Sherman Parts
LH FRONT FENDER BRACE SDN/WAGON; LOWER FENDER SUPPORT AUDI A4/S4/ALLROAD 1316

TYC
1620 AUDI Q5 Q7 CABIN AIR FILTER

TYC
0920 AD A4/ S4 CABIN AIR FILTER

Samco
Samco Turbo Clamp Kit A4 Turbo B6 AVJ/AMB/BFB (3)
TYC
0920 AD A.4 NEGATIVE ION CABIN AIR FILTER

Sherman Parts
TOW HOOK COVER W/O SPORT PACKAGE AUDI A4 0508

A1 REMFG INC
AUDI A4,A4 QUATTRO 06-02

TYC
LH FOG LAMP ASSY AUDI A5 QUATTRO 0812; S5 0812;AUDI WGN S5 0812; A4 WGN 0912; CC 0912

TYC
RH FOG LAMP ASSY AUDI A5 QUATTRO 0812; S5 0812;AUDI WGN S5 0812; A4 WGN 0912; CC 0912
Samco
Samco 1995 - 2000 A4 1800 Turbo B5 AEB/AVJ

TYC
LH FRONT SIDE REFLECTOR AUDI A4 20052008

Dana
ENGINE HEAD GASKET
Dana
FUEL INJECTOR O-RING KIT

Sherman Parts
LH FRONT BUMPER INSERT FOG LAMP BEZEL; W/O ADAPTIVE CRUISE CONTROL; W/O SLINE PKG AUDI A4 1316
Sherman Parts
FRONT BUMPER COVER REINFORCEMENT IMPACT BAR COVER STRIP AUDI A4 0912
Sherman Parts
LT REAR BUMPER COVER RETAINER SEDAN; OUTER COVER GUIDE AUDI A4 0912

Sherman Parts
LH COVER OUTER GRILLE AUDI A4 9699 (TO VIN#X199999)

Dana
VALVE COVER GASKET SET

A1 REMFG INC
AUDI A4,A4 QUATTRO 06-02

Dana
ENGINE HEAD GASKET

Dana
ENGINE HEAD GASKET

SPEC D TUNING
96-01 A4 HEADLIGHT EYELID

TYC
LH FOG LAMP ASSY H/B; W/SPORT PKG AUDI A3 0613; SDN/WGN AUDI S4 0508; AUDI SDN A4 0508

TYC
RH FOG LAMP ASSY H/B; W/SPORT PKG AUDI A3 0613; SDN/WGN AUDI S4 0508; AUDI SDN A4 0508

Sherman Parts
LT FRONT FENDER INNER PANEL W/O SLINE PKG; FRONT; MAT:PE/VACUUM FORM; OEM:PP/INJECTION A4 20172017

Dana
CYLINDER HEAD GASKET

Sherman Parts
LH FRONT FENDER INNER PANEL; MAT: PE/VACUUM FORM; OEM: PP+EPDM/INJECTION AUDI A4/S4 1718

Dana
SEAL SET, VALVE STEM

Dana
ENGINE VALVE COVER GASKET SET

Raybestos Brakes
BRAKE ROTRS

Raybestos Brakes
Brake Rotors: Various Makes and Models; Rotor; Outside Diameter 9.64"; 5 Bolt Holes; Solid

Raybestos Brakes
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