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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NGK auto part

NGK

NGK Double Platinum Spark Plug for Audi/VW Box of 4 (PFR6Q)

NGK auto part

NGK

NGK Iridium Spark Plug Box of 4 (IFR6Q-G)

NGK auto part

NGK

NGK 2014 VW Passat COP Ignition Coil

NGK auto part

NGK

NGK Copper Core Spark Plug Box of 4 (BKUR6ET-10)

NGK auto part

NGK

NGK Nickel Spark Plug Box of 4 (BKR6EKUB)

NGK auto part

NGK

NGK 1999-98 VW Passat COP Ignition Coil

AEM air filter

AEM

AEM Dryflow Air Filter for 07-16 Audi A4 1.8L TFSI

R1 Concepts auto part

R1 Concepts

R1 00-11 Audi A6 Quattro Front Euro Ceramic Brake Pads

I

Italian RP

Italian RP - IRPR193

I

Italian RP

Italian RP - IRPR149-1

034Motorsport auto part

034Motorsport

MOUNT,TRANS,B8 INSERTB8 TRANS

034Motorsport auto part

034Motorsport

MOUNT,TRANS,SD,TIPTRANSMISSIO

034Motorsport auto part

034Motorsport

DRIVESHAFT SUPPORT,B5 A4-S4 8

034Motorsport auto part

034Motorsport

Mount,RR Diff,Insert Set, B8

034Motorsport auto part

034Motorsport

FLYWHEEL, 1.8T W/B7 RS4 CLUTCH

034Motorsport auto part

034Motorsport

Handling Pac, Stage 3, B9 A4/A

034Motorsport auto part

034Motorsport

MANIFOLD,1.8T LONGLONGITUDINA

034Motorsport auto part

034Motorsport

Radiator Relo Kit,B8 4.0T

034Motorsport catch can

034Motorsport

Catch Can Kit, B8 A4,A5,Q5 2.0

034Motorsport spacers

034Motorsport

SPACER,PHENOLIC,2.7T LARGE2.7

034Motorsport auto part

034Motorsport

HOSE,SIL,INLET,B8 BLKTURBO IN

034Motorsport auto part

034Motorsport

Shim Kit, Brake Pads, Ti, RS+

0

034Motorsport

Rotor Rings, Rear, 370x22, B9

034Motorsport auto part

034Motorsport

Rtr Upg, R, 370x22, B9 RS5,Blk

034Motorsport downpipe

034Motorsport

DOWNPIPE,B8 A4 HFCHIGH FLOW C

0

034Motorsport

Rotors, F, 1pc, 338x30, B9 A4

0

034Motorsport

RS+ Big Brake Pkg, Red, B9

0

034Motorsport

RS+ Big Brake Pkg, Black, B9

034Motorsport auto part

034Motorsport

VALVE SET,2.0T FSI SS INCONEL

034Motorsport strut brace

034Motorsport

Brace, Strut Tower, B9 A4/S4

034Motorsport auto part

034Motorsport

TIE ROD,REAR B5 SPHERICAL.TIE

034Motorsport auto part

034Motorsport

Insert Set, Rr Subfrme, B9 A4

034Motorsport auto part

034Motorsport

Ctrl Arm Kit, Up Adj, TS,B9 S4

034Motorsport auto part

034Motorsport

Ctrl Arm Kit B8 Full Trck Late

034Motorsport control arms

034Motorsport

Control Arm Kit, Frt, B6 B7

034Motorsport auto part

034Motorsport

Ctrl Arm Kit, Up, B5 B6 B7

034Motorsport auto part

034Motorsport

BUSHING,SUBFRAME FRONT B5SUBF

034Motorsport auto part

034Motorsport

Hardware Kit, B8 LWR CA M14

034Motorsport intake system

034Motorsport

X34, Intake Duct, Gloss, B9

034Motorsport auto part

034Motorsport

WSK, Ball, OEM

034Motorsport auto part

034Motorsport

Insert Pkg, Drvtrain, B8 Qtro

034Motorsport auto part

034Motorsport

Brake Pad, SS, Rear, B8 S4

034Motorsport red auto part

034Motorsport

Ign Coil, 8pk, Red, MQB Style

034Motorsport auto part

034Motorsport

Rebuild Kit, End Links, 8J/8P/

034Motorsport sway bar

034Motorsport

Sway Bar Kit, Rear, Audi B9

034Motorsport auto part

034Motorsport

Ctrl Arm Kit, Full, CC, B9 S4

0

034Motorsport

Ctrl Arm Kit, Lower, B6/B7

034Motorsport control arms

034Motorsport

CONTROL ARM PAIR,B5 REAR UPPER

034Motorsport auto part

034Motorsport

MOUNT, MOTOR, SD, B8 A4/S4

034Motorsport auto part

034Motorsport

Mount,RR Diff Insert B6-B7Mou

034Motorsport red auto part

034Motorsport

Rtr Upg, R, 370x22, B9 S4, Red

034Motorsport roof rack

034Motorsport

BRACKET,SNUB MOUNT A4 LATESNU

034Motorsport auto part

034Motorsport

S34 Accel Pk, Stg 2, B8 A4/A5/

034Motorsport auto part

034Motorsport

MOUNT,TRANS,SD,B6-B7 6 SPEEDT

034Motorsport roof rack

034Motorsport

BRACKET,SNUB,B6 1.8T STREETSN

034Motorsport auto part

034Motorsport

X34, Air Scoop, B9

034Motorsport auto part

034Motorsport

Res-X, B9 A4 2.0T

034Motorsport auto part

034Motorsport

Paddles, Billet, B9 A4, Ti

034Motorsport auto part

034Motorsport

Handling Pac, Stg2, B8 A4/A5/a

0

034Motorsport

Handling Pac, Stage 1, B8 A4/A

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