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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WAGNER BRAKE auto part

WAGNER BRAKE

CERAMIC DISC PAD SET

Suspension Techniques auto part

Suspension Techniques

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

Suspension Techniques auto part

Suspension Techniques

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

Suspension Techniques shock absorber

Suspension Techniques

ST Shock Kit Audi A4 (8E/B6-B7) Sedan 2WD Quattro Wagon Quattro Convertible

Suspension Techniques springs

Suspension Techniques

ST Adjustable Lowering Springs 2017+ Audi A4 Sedan 4WD w/EDC

Suspension Techniques springs

Suspension Techniques

ST Audi A4 / S4 (B9) Sedan A5 S5 (B9) Coupe 4WD Adjustable Lowering Springs

Suspension Techniques springs

Suspension Techniques

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

Suspension Techniques coilovers

Suspension Techniques

ST XA Coilover Kit 02-08 Audi A4 (8E/B6-B7) Sedan 2WD

Suspension Techniques springs

Suspension Techniques

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

S

STANDARD IGN

ABS SENSOR HARNESS

STANDARD IGN auto part

STANDARD IGN

AIR PUMP - NEW

FOUR SEASONS auto part

FOUR SEASONS

PARALLEL FLOW CONDENSER

STANDARD IGN auto part

STANDARD IGN

INTERMOTOR VARIABLE VALVE TIMING SO

S

STANDARD IGN

INTERMOTOR VARIABLE VALVE TIMING SO

S

STANDARD IGN

VVT CHAIN TENSIONER

S

STANDARD IGN

VARIABLE VALVE TIMING SOLENOID

STANDARD IGN auto part

STANDARD IGN

BRAKE BOOST SENSOR

TIMKEN auto part

TIMKEN

CLUTCH RELEASE BEARING

R

R/M BRAKES

DISC PAD

STANDARD IGN auto part

STANDARD IGN

AIR CHARGE TEMPERATURE SENSOR

FOUR SEASONS auto part

FOUR SEASONS

STANDARD ROTATION THERMAL

FOUR SEASONS auto part

FOUR SEASONS

STANDARD ROTATION THERMAL

STANDARD IGN auto part

STANDARD IGN

VVT SOLENOID

STANDARD IGN auto part

STANDARD IGN

INTRMTR VOLTAGE REGULATOR

STANDARD IGN auto part

STANDARD IGN

INTRMTR VOLTAGE REGULATOR

STANDARD IGN auto part

STANDARD IGN

LOCKS - IGNITION

S

STANDARD IGN

TURBOCHARGER - NEW

STANDARD IGN auto part

STANDARD IGN

DIVERTER VALVE

STANDARD IGN auto part

STANDARD IGN

CRANK SENS

STANDARD IGN auto part

STANDARD IGN

AUDI A4, A6 2.8L ACK 05-9

FOUR SEASONS auto part

FOUR SEASONS

CONDENSER /PARALLEL

STANDARD IGN auto part

STANDARD IGN

ABS SENSOR HARNESS

FOUR SEASONS auto part

FOUR SEASONS

SUCTION LINE HOSE ASSEMBL

D

DELPHI

CTRL ARM & BALL JNT ASSEM

FOUR SEASONS auto part

FOUR SEASONS

DISCHARGE LINE HOSE ASSEM

S

STANDARD IGN

ABS SENSOR HARNESS

R

R/M BRAKES

BRAKE PAD SET

FOUR SEASONS auto part

FOUR SEASONS

SUCTION LINE HOSE ASSEMBL

FOUR SEASONS air compressor

FOUR SEASONS

NEW COMPRESSOR

DELPHI auto part

DELPHI

ABS SPEED SENSOR

FOUR SEASONS auto part

FOUR SEASONS

NIPPONDNESO 7SB16C COMPR

DELPHI auto part

DELPHI

SUSP CTRL ARM

FOUR SEASONS auto part

FOUR SEASONS

PLATEFINEVAPORATORCORE

FOUR SEASONS auto part

FOUR SEASONS

NIPP 7SEU16C COMP W/CLUT

FOUR SEASONS auto part

FOUR SEASONS

COOLANT PUMP

FOUR SEASONS auto part

FOUR SEASONS

NIPPONDENS 6SEU16C CMPRSR

DELPHI auto part

DELPHI

CTRL ARM

DEA PRODUCTS auto part

DEA PRODUCTS

TRANSMISSION MOUNT

R

R/M BRAKES

BRAKE PAD SET

F

FOUR SEASONS

COMPLETE A/C KIT

FOUR SEASONS auto part

FOUR SEASONS

BLOWER MOTOR

DELPHI auto part

DELPHI

CRANKSHAFT SENSOR

D

DELPHI

CTRL ARM

DELPHI auto part

DELPHI

ABS SPEED SENSOR

DELPHI auto part

DELPHI

OXYGEN SENSOR

DELPHI control arms

DELPHI

CONTROL ARM AND BALL JOINT ASSEMBLY

DELPHI control arms

DELPHI

CONTROL ARM AND BALL JOINT ASSEMBLY

FOUR SEASONS auto part

FOUR SEASONS

RMFG DCW17B

S

STANDARD IGN

CLOCK SPRING

FOUR SEASONS auto part

FOUR SEASONS

PRESSURE SWITCH

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