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

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Audi A4 Category:air and fuel Parts

502 parts available

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

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aFe intake system

aFe

aFe MagnumFORCE Intakes Stage-2 PDS AIS PDS Audi A4 06-08 L4-2.0L (t)

Injen black cold air intake

Injen

Injen 09-16 Audi A4 2.0L (t) Black Cold Air Intake

DeatschWerks auto part

DeatschWerks

DeatschWerks 02-08 Mini Cooper S 1.6L Supercharged 550cc Injectors - Set of 4

Aeromotive auto part

Aeromotive

Aeromotive Fuel Rails - Volkswagen 1.8L Turbo

AEM cold air intake

AEM

AEM 13-15 Audi A4 2.0L / 14-15 A5 2.0L Cold Air Intake

aFe air filter

aFe

aFe MagnumFLOW Air Filters OER PDS A/F PDS Audi A4 09-11 / Q5 09-10 L4-2.0L (t)

aFe intake system

aFe

aFe Momentum GT Intakes Stage-2 P5R AIS 9-16 Audi A4 (B8) L4-2.0L

aFe intake system

aFe

aFe MagnumFORCE Intakes Stage-2 P5R AIS P5R Audi A4 02-05 L4-1.8L (t)

aFe cold air intake

aFe

aFe Momentum GT Cold Air Intake System w/ Pro 5R Media Audi A4/Quattro (B9) 16-19 I4-2.0L (t)

aFe intake system

aFe

aFe Momentum GT Pro Dry S Intakes Stage-2 9-16 Audi A4 (B8) L4-2.0L

aFe air filter

aFe

aFe MagnumFLOW Air Filters OER P5R A/F P5R Audi A4 09-11 / Q5 09-10 L4-2.0L (t)

aFe intake system

aFe

aFe POWER Momentum GT Pro Dry S Intake System 16-19 Audi A4/Quattro I4-2.0L (T)

aFe intake system

aFe

aFe MagnumFORCE Intakes Stage-2 P5R AIS P5R Audi A4 06-08 L4-2.0L (t)

HOSE,SIL,BRTHR A4 B6 PRV OUTS

034Motorsport

HOSE,SIL,BRTHR A4 B6 PRV OUTS

HOSE,SIL,BRTHR AEB L-HOSESILI

034Motorsport

HOSE,SIL,BRTHR AEB L-HOSESILI

Hose,Sil,Brthr A4 L-HoseRepla

034Motorsport

Hose,Sil,Brthr A4 L-HoseRepla

HOSE,SIL,AUDI 1.8T N75FITS A

034Motorsport

HOSE,SIL,AUDI 1.8T N75FITS A

HOSE,SIL,BRTHR A4 EARLY CHKBR

034Motorsport

HOSE,SIL,BRTHR A4 EARLY CHKBR

HOSE,SIL,BRTHR A4 B6 INLETB6

034Motorsport

HOSE,SIL,BRTHR A4 B6 INLETB6

Mahle Engine Air Filter LX 593 1

Mahle

Mahle Engine Air Filter LX 593 1

INTRMTR VACUUM REGULATOR

STANDARD IGN

INTRMTR VACUUM REGULATOR

MANIFOLD ABSOLUTE PRESSURE SENSOR

Walker Products Inc. - Sensors

MANIFOLD ABSOLUTE PRESSURE SENSOR

TETHERED FUEL CAP

MOTORAD

TETHERED FUEL CAP

MANIFOLD ABSOLUTE PRESSURE SENSOR

Walker Products Inc. - Sensors

MANIFOLD ABSOLUTE PRESSURE SENSOR

IGNITION KNOCK (DETONATION) SENSOR

Walker Products Inc. - Sensors

IGNITION KNOCK (DETONATION) SENSOR

W

Walker Products Inc. - Sensors

PIGTAIL KIT

ENGINE CAMSHAFT POSITION SENSOR

Walker Products Inc. - Sensors

ENGINE CAMSHAFT POSITION SENSOR

AIR CHARGE TEMPERATURE SENSOR

Walker Products Inc. - Sensors

AIR CHARGE TEMPERATURE SENSOR

STANDARD IGN auto part

STANDARD IGN

OXYGEN SENSOR CN

W

Walker Products Inc. - Sensors

IGNITION KNOCK (DETONATION) SENSOR

VEHICLE SPEED SENSOR

Walker Products Inc. - Sensors

VEHICLE SPEED SENSOR

F

Fram

FLEX PANEL AIR FILTER 2PK

Fram air filter

Fram

PANEL AIR FILTER

INTAKE MANIFOLD GASKET

Dana

INTAKE MANIFOLD GASKET

D

Dana

THROTTLE BODY GASKET

D

Dana

THROTTLE BODY GASKET

INTAKE MANIFOLD GASKET

Dana

INTAKE MANIFOLD GASKET

FUEL INJECTOR O-RING KIT

Dana

FUEL INJECTOR O-RING KIT

PIGTAIL OR SOCKET

Dorman

PIGTAIL OR SOCKET

FUEL FILTER MIN ORDER QTY12

WIX

FUEL FILTER MIN ORDER QTY12

D

Dorman

BRAKE HOSE

W

WIX

AIR FILTER

CABIN AIR FILTER MIN ORDER QTY1

WIX

CABIN AIR FILTER MIN ORDER QTY1

W

WIX

CABIN AIR FILTER

AIR FILTER

WIX

AIR FILTER

T

Torque Solution

Torque Solution Thermal Throttle Body Gasket: Audi A4 Quattro 1997-2001

B

Bosch

GASOLINE INJECTOR

TURBOCHARGER MOUNTING GASKET SET

Clevite

TURBOCHARGER MOUNTING GASKET SET

M

Mahle

~(0 lbs. 96X4X4)~ Turbo Oil Drain AUDI / VOLKSWAGEN 1781CC 1.8L 2671CC 2.7L 1999-2006

AIR FILTER ELEMENT

Mahle

AIR FILTER ELEMENT

PRESSURE SENSOR

Bosch

PRESSURE SENSOR

CABIN AIR FILTER

Bosch

CABIN AIR FILTER

~(0.2 lbs. 16X6X0)~ Intake Manifold Gasket 13-17 Audi/VW 1.8L/2.0L

Mahle

~(0.2 lbs. 16X6X0)~ Intake Manifold Gasket 13-17 Audi/VW 1.8L/2.0L

SENDER UNIT INTAKE AIR TEMPERATURE

Hella

SENDER UNIT INTAKE AIR TEMPERATURE

AIR FILTER

Denso

AIR FILTER

~(0 lbs. 7X7X0)~ Volkswagen ABA SOHC 2.0L 1994-1999

Mahle

~(0 lbs. 7X7X0)~ Volkswagen ABA SOHC 2.0L 1994-1999

Intake Manifold Set Audi:9090 Quattro100100 Quattro w 2771ccAAH V6 Eng.(92-95)(int)

Mahle

Intake Manifold Set Audi:9090 Quattro100100 Quattro w 2771ccAAH V6 Eng.(92-95)(int)

VW AUDI 2771CC 2.8L DOHC 30V 1997-2005

Mahle

VW AUDI 2771CC 2.8L DOHC 30V 1997-2005

C

Clevite

AUDI 3.0L 3.2L DOHC 24V 20052012 PLENUM CHAMBER

~(0.9 lbs. 11X9X1)~ Audi A4 2.0L TDI 3.2L A5 3.2L Q5 3.2L S5 4.2L 08-09

Mahle

~(0.9 lbs. 11X9X1)~ Audi A4 2.0L TDI 3.2L A5 3.2L Q5 3.2L S5 4.2L 08-09

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.

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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