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.

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Verified Fitment

Audi A4 Parts

8164 parts available

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

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CERAMIC DISC PAD SET

WAGNER BRAKE

CERAMIC DISC PAD SET

OXYGEN SENSOR

Walker Products Inc. - Sensors

OXYGEN SENSOR

OXYGEN SENSOR

Walker Products Inc. - Sensors

OXYGEN SENSOR

D

DAYCO HYDRAULIC

TIMING BELT WATER PUMP KT

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Suspension Techniques

ST Sport-tech Lowering Springs Audi A4 (8D/B5) Quattro Sedan+Wagon

OXYGEN SENSOR

Walker Products Inc. - Sensors

OXYGEN SENSOR

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Suspension Techniques

ST Front Anti-Swaybar Set 08+ Audi A4 & S4 (B8) Sedan & Wagon/2wd & Quattro

Suspension Techniques coilovers

Suspension Techniques

ST XA-Height Adjustable Coilovers 17+ Audi A4 (B9) Sedan 2WD - W/O Elec. Dampers

S

STANDARD IGN

HAZARD WARNING SWITCH

Suspension Techniques coilovers

Suspension Techniques

ST Coilover Kit 98-01 Audi A4 (8D/B5) Sedan 2WD

REMY red auto part

REMY

REMANUFACTURED STARTER

STANDARD IGN auto part

STANDARD IGN

INTRMTR FL INJ- MFI

MOTORAD auto part

MOTORAD

THERMOSTAT HOUSING

E

Extreme Dimensions

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

OXYGEN SENSOR

Walker Products Inc. - Sensors

OXYGEN SENSOR

OXYGEN SENSOR

Walker Products Inc. - Sensors

OXYGEN SENSOR

MONROE SHOCKS & STRUTS strut brace

MONROE SHOCKS & STRUTS

SENSA-TRAC STRUTS

MONROE SHOCKS & STRUTS strut brace

MONROE SHOCKS & STRUTS

SENSA-TRAC STRUTS

Hidden Hitch auto part

Hidden Hitch

SPORTFRAME HITCH

TIMKEN auto part

TIMKEN

PRESET PRE-GREASED AND PRE-SEALED

MOTORAD auto part

MOTORAD

ENGINE CRANKSHAFT POSITION SENSOR

R

REMY

NEW ALTERNATOR

MOTORAD auto part

MOTORAD

DRIVE MOTOR BATTERY PACK CHILLER AS

REMY auto part

REMY

IMPORT STARTER

W

Walker Products Inc. - Sensors

ENGINE VARIABLE VALVE TIMING (VVT)

MONROE SHOCKS & STRUTS strut brace

MONROE SHOCKS & STRUTS

QUICK-STRUT ASSEMBLY

OXYGEN SENSOR

Walker Products Inc. - Sensors

OXYGEN SENSOR

DAYCO HYDRAULIC auto part

DAYCO HYDRAULIC

WATER PUMP KIT

Hidden Hitch auto part

Hidden Hitch

INSTA-HITCH I

Suspension Techniques coilovers

Suspension Techniques

ST XA Coilover Kit 09-14 Audi A4/A4 Quattro (B8)

Suspension Techniques coilovers

Suspension Techniques

ST X HEIGHT ADJUSTABLE COILOVER KIT

OXYGEN SENSOR

Walker Products Inc. - Sensors

OXYGEN SENSOR

OXYGEN SENSOR

Walker Products Inc. - Sensors

OXYGEN SENSOR

STANDARD IGN auto part

STANDARD IGN

INTERMOTOR SWITCH - POWER

W

Walker Products Inc. - Sensors

OXYGEN SENSOR

REMY auto part

REMY

IMPORT ALTERNATOR

REMY red auto part

REMY

REMANUFACTURED STARTER

V

VALEO

LED FOG LIGHT BAR KIT

Suspension Techniques shock absorber

Suspension Techniques

ST Shock Kit Audi A4 (8D/B5) Quattro Sedan+Wagon

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

STANDARD IGN auto part

STANDARD IGN

LOCKS - IGNITION

Suspension Techniques springs

Suspension Techniques

ST Audi A4 (B9) Sedan 2WD Adjustable Lowering Springs

OXYGEN SENSOR

Walker Products Inc. - Sensors

OXYGEN SENSOR

T

TIMKEN

HA590924;A/AM-HUB BRG

Suspension Techniques auto part

Suspension Techniques

ST Sport-tech Suspension Kit Audi A4 (8E/B6-B7) Sedan 2WD

MASS AIR FLOW SENSOR

Walker Products Inc. - Sensors

MASS AIR FLOW SENSOR

R

REMY

IMPORT STARTER

Suspension Techniques coilovers

Suspension Techniques

ST Coilover Kit 02-08 Audi A4 Quattro (8E/B6-B7) Wagon

E

EXIDE

EXIDE SPRINTER MAX EXTREME

WAGNER BRAKE auto part

WAGNER BRAKE

BRAKE ROTOR

TIMKEN auto part

TIMKEN

PRESET PREGREASED PRESEALED BRG M

Hidden Hitch auto part

Hidden Hitch

SPORTFRAME HITCH & DRAWBAR

V

VALEO

V-RF40 LED LIGHT BAR DRIVING KIT

MASS AIR FLOW SENSOR

Walker Products Inc. - Sensors

MASS AIR FLOW SENSOR

DAYCO HYDRAULIC auto part

DAYCO HYDRAULIC

OAP/OAD

D

DAYCO HYDRAULIC

WATER PUMP AND TIMIMG BELY KIT

S

Suspension Techniques

ST Sport-tech Lowering Springs Audi A4 (8E/B6-B7) Sedan 2WD

The Wheel Group black auto part

The Wheel Group

KRAZE DOUBLE DOWN KR185 GLOSS BLACK 17X8 5x112/5x120 38MM 74.1MM

V

VALEO

LED FOG LIGHT BAR

OXYGEN SENSOR

Walker Products Inc. - Sensors

OXYGEN SENSOR

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