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:engines and components Parts

763 parts available

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

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Ferrea Audi/VW 1.8T 20V/2.7T 30V Intake Spring Seat Locators - Set of 6 (For S10056)

Ferrea Racing

Ferrea Audi/VW 1.8T 20V/2.7T 30V Intake Spring Seat Locators - Set of 6 (For S10056)

C

Cloyes Gear & Products

ENGINE TIMING CHAIN GUIDE

C

Cloyes Gear & Products

BELT IDLER

CAMSHAFT SENSOR

Dorman

CAMSHAFT SENSOR

F

Ferrea Racing

Ferrea Audi Spring Seat Locator - Single (Required for S10055 / Drop Ship Only)

Ferrea Racing exhaust

Ferrea Racing

Ferrea VW 1.8T 20V Exhaust Dual Valve Spring - Single (Drop Ship Only)

Ferrea Audi 2.0T FSI DOHC 16 Valve Lifter Shim - Single

Ferrea Racing

Ferrea Audi 2.0T FSI DOHC 16 Valve Lifter Shim - Single

OIL FILTER

WIX

OIL FILTER

SPLASH SHIELD SCREW/CLIP

Dorman

SPLASH SHIELD SCREW/CLIP

OIL FILTER

WIX

OIL FILTER

Ferrea Audi Spring Seat Locator - Single (Required for S10056 / Drop Ship Only)

Ferrea Racing

Ferrea Audi Spring Seat Locator - Single (Required for S10056 / Drop Ship Only)

C

Cloyes Gear & Products

TIMING GEARS

C

Cloyes Gear & Products

TIMING BELT

OIL FILTER

WIX

OIL FILTER

Valve Cover Set AUDI 2976CC 3.0L AVK BGN 2002-2006

Mahle

Valve Cover Set AUDI 2976CC 3.0L AVK BGN 2002-2006

C

Clevite

INTAKE VALVE

Mahle Oil Filter Audi Allroad 4.2l 2003-2005 A8 S8 4.2l 5.2l 2004 - 2005

Mahle

Mahle Oil Filter Audi Allroad 4.2l 2003-2005 A8 S8 4.2l 5.2l 2004 - 2005

Audi 2.0L Turbo DOHC A3 A4 Quattro TT Quattro 2009

Mahle

Audi 2.0L Turbo DOHC A3 A4 Quattro TT Quattro 2009

AUDI / VOLKSWAGEN 1984CC 2.0L BPGBPYBWTCDMA 20052014 TIMING COVER SET

Clevite

AUDI / VOLKSWAGEN 1984CC 2.0L BPGBPYBWTCDMA 20052014 TIMING COVER SET

OIL DRAIN PLUG M14-1.50

Dorman

OIL DRAIN PLUG M14-1.50

ACL Bearings VW 4 1595-1781-1984cc 1983 on STD

ACL

ACL Bearings VW 4 1595-1781-1984cc 1983 on STD

M

Mahle

AUDI 3.2L BKH 2005-2009

C

Clevite

VW 1984CC 2.0L TURBO L4 BPY 20062007 VALVE COVER GASKET

C

Clevite

THERMOSTAT HOUSING GSKT.

AUDI 3.2L DOHC 24V BKH 2005-2006

Mahle

AUDI 3.2L DOHC 24V BKH 2005-2006

C

Clevite

AUDI 3123CC 3.2L BKH 20052009 VALVE COVER GASKET (RIGHT)

C

Clevite

EXHAUST VALVE

C

Clevite

AUDI 3.2L DOHC 24V BKH 20052006 WATER OUTLET GASKET

~(1 lbs. 8X8X4)~ AUDI / VW 3.0L 3.2L DOHC 24V 2005-2012

Mahle

~(1 lbs. 8X8X4)~ AUDI / VW 3.0L 3.2L DOHC 24V 2005-2012

OIL FILTER

Bosch

OIL FILTER

B

Bosch

OIL FILTER

~(0.4 lbs. 24X6X0)~ 49-56 GM V8 324cid 317cid 303cid

Mahle

~(0.4 lbs. 24X6X0)~ 49-56 GM V8 324cid 317cid 303cid

C

Clevite

SLEEVE ASSEMBLY RING SET

SLEEVE ASSEMBLY RING SET

Clevite

SLEEVE ASSEMBLY RING SET

EXHAUST VALVE

Clevite

EXHAUST VALVE

INTAKE VALVE

Clevite

INTAKE VALVE

M

Mahle

~(0.1 lbs. 8X5X0)~ Timing Cover Gasket 14-17 Audi/VW 1.8L/2.0L

M

Mahle

VW 2.0L TURBO BPY 2006-2008 CCTA 2008 CBFA 2008

FOR AUDI AUK BKH BYU

King Engine Bearings

FOR AUDI AUK BKH BYU

M

Mahle

~(0 lbs. 6X4X0)~ Volkswagen / BMW

H

Hella

OIL PRESSURE SWITCH VAG

M

Mahle

Audi:1.5L1.6L1.7L1.8L1.9L2.0L(70-91) VW:1.51.6L(73-85)1.8L(84-88)

Sleeve Assembly Ring Set Volkswagen PISTON RING SET-LV-Piston Ring Set-PISTON RING SET

Mahle

Sleeve Assembly Ring Set Volkswagen PISTON RING SET-LV-Piston Ring Set-PISTON RING SET

Sleeve Assembly Ring Set PISTON RING SET-LV-Piston Ring Set-PISTON RING SET

Mahle

Sleeve Assembly Ring Set PISTON RING SET-LV-Piston Ring Set-PISTON RING SET

M

Mahle

Sleeve Assembly Ring Set Volkswagen PISTON RING SET-LV-Piston Ring Set-Piston ring set

VW-Pass 1.9L TDI ALH 10 00-2004 BEW 2004-2006 BRM 2005-2006

Mahle

VW-Pass 1.9L TDI ALH 10 00-2004 BEW 2004-2006 BRM 2005-2006

C

Clevite

SLEEVE ASSEMBLY RING SET

INTAKE VALVE

Clevite

INTAKE VALVE

AUDI 2771CC 2.8L SOHC 12V 1996-1998

Mahle

AUDI 2771CC 2.8L SOHC 12V 1996-1998

AUDI / VOLKSWAGEN 1984CC 2.0L GASOLINE TURBOCHARGED 20082014 VALVE COVER SET

Clevite

AUDI / VOLKSWAGEN 1984CC 2.0L GASOLINE TURBOCHARGED 20082014 VALVE COVER SET

SENSOR CAMSHAFT POSITION

Hella

SENSOR CAMSHAFT POSITION

AUDI 2976CC 3.0L 20022006 TIMING COVER SET

Clevite

AUDI 2976CC 3.0L 20022006 TIMING COVER SET

MAHLE FILTERS

Clevite

MAHLE FILTERS

M

Mahle

Oil Pan Set HYUNDAI 1975CC 2.0L BETA 1997-2007

AUDI / VW 3.0L 3.2L DOHC 24V 20052012 CYLINDER HEAD BOLTS

Clevite

AUDI / VW 3.0L 3.2L DOHC 24V 20052012 CYLINDER HEAD BOLTS

Engine Oil Filter

Mahle

Engine Oil Filter

D

Dorman

ELBOW HOSE

C

Clevite

PISTON PIN BUSHING

AUDI/VW 1.8LAND 2.0L 2013-2018 Cylinder Head Bolts

Mahle

AUDI/VW 1.8LAND 2.0L 2013-2018 Cylinder Head Bolts

M

Mahle

Volkswagen ABA SOHC 2.0L 1993-2002

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