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?

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Verified Fitment

Audi A4 Category:exterior components Parts

2182 parts available

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

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X34, Air Scoop, B9

034Motorsport

X34, Air Scoop, B9

Res-X, B9 A4 2.0T

034Motorsport

Res-X, B9 A4 2.0T

Paddles, Billet, B9 A4, Ti

034Motorsport

Paddles, Billet, B9 A4, Ti

HOSE,SIL,BRTHR AEB LWRSILICON

034Motorsport

HOSE,SIL,BRTHR AEB LWRSILICON

HEAD GASKET,1.8T 83MM BOREBIG

034Motorsport

HEAD GASKET,1.8T 83MM BOREBIG

SPACER,PHENOLIC,1.8T LARGE1.8

034Motorsport

SPACER,PHENOLIC,1.8T LARGE1.8

HOSE SET,A4 1.8T EARLY BREATH

034Motorsport

HOSE SET,A4 1.8T EARLY BREATH

Mount, Trans, B9 Insert, A4 DS

034Motorsport

Mount, Trans, B9 Insert, A4 DS

MOUNT,TRANS,SD,B6 5 SPEEDSTRE

034Motorsport

MOUNT,TRANS,SD,B6 5 SPEEDSTRE

Turbo Inlet Hose, B9 2.0T

034Motorsport

Turbo Inlet Hose, B9 2.0T

Ign Coil, 8pk, Yel, MQB Style

034Motorsport

Ign Coil, 8pk, Yel, MQB Style

Ign Coil, 5pk, Red, Style

034Motorsport

Ign Coil, 5pk, Red, Style

MOUNT,MOTOR,TD,A4TRACK DENSIT

034Motorsport

MOUNT,MOTOR,TD,A4TRACK DENSIT

FUEL RAIL,1.8T 034 KITFUEL RA

034Motorsport

FUEL RAIL,1.8T 034 KITFUEL RA

0

034Motorsport

ADAPTER,TB 1.8T TO 2.7TTHROTT

Control Arm Kit, B8 Full Late

034Motorsport

Control Arm Kit, B8 Full Late

Bracket, Rr Brake Upgrade, B5

034Motorsport

Bracket, Rr Brake Upgrade, B5

Mount, Rear Diff, Inserts B9

034Motorsport

Mount, Rear Diff, Inserts B9

Brake Pad, SS, Front, B8 S4

034Motorsport

Brake Pad, SS, Front, B8 S4

HARDWARE KIT, FP34 NIPPLE*OPT

034Motorsport

HARDWARE KIT, FP34 NIPPLE*OPT

FUEL PUMP KIT,BILLET ONLY60 M

034Motorsport

FUEL PUMP KIT,BILLET ONLY60 M

BRACKET,SUBFRAME,B5 SWAYBARB5

034Motorsport

BRACKET,SUBFRAME,B5 SWAYBARB5

Mount, Motorsport, B8 3.0T

034Motorsport

Mount, Motorsport, B8 3.0T

End Links, Rear, MS, B8/B8.5

034Motorsport

End Links, Rear, MS, B8/B8.5

HOSE SET,A4 1.8T MID BREATHER

034Motorsport

HOSE SET,A4 1.8T MID BREATHER

MOUNT,TRANS,MS,B5 S4MOTORSPOR

034Motorsport

MOUNT,TRANS,MS,B5 S4MOTORSPOR

Ign Coil, 6pk, Red, Style

034Motorsport

Ign Coil, 6pk, Red, Style

DRIVESHAFT SUPPORT,B6 A4 C5 A6

034Motorsport

DRIVESHAFT SUPPORT,B6 A4 C5 A6

Rebld Kit, D+ Frt End Link, B9

034Motorsport

Rebld Kit, D+ Frt End Link, B9

BYPASS VALVE,710N710N BYPASS

034Motorsport

BYPASS VALVE,710N710N BYPASS

END LINK,B8 FRONT SWAYSPHERIC

034Motorsport

END LINK,B8 FRONT SWAYSPHERIC

Control Arm Kit, B8 Upper

034Motorsport

Control Arm Kit, B8 Upper

Rebuild Kit, RS+ Calipers, B9

034Motorsport

Rebuild Kit, RS+ Calipers, B9

Ctrl Arm Kit B8 Full Trck Earl

034Motorsport

Ctrl Arm Kit B8 Full Trck Earl

Control Arm Kit, B8 Full Early

034Motorsport

Control Arm Kit, B8 Full Early

Brace, Driveshaft Tunnel, B9

034Motorsport

Brace, Driveshaft Tunnel, B9

Rotors, R, 1-pc, 330x22, B8 B9

034Motorsport

Rotors, R, 1-pc, 330x22, B8 B9

Billet Rear Main Seal, 2.7T

034Motorsport

Billet Rear Main Seal, 2.7T

REBUILD KIT,DENSITY ADJ CNTLR

034Motorsport

REBUILD KIT,DENSITY ADJ CNTLR

Oil Filler Cap, MQB EVO

034Motorsport

Oil Filler Cap, MQB EVO

Oil Filter Housing, B8 3.0T

034Motorsport

Oil Filter Housing, B8 3.0T

Billet Frt Main Seal, B8 3.0T

034Motorsport

Billet Frt Main Seal, B8 3.0T

End Link Kit, D+, Front, B9

034Motorsport

End Link Kit, D+, Front, B9

End Link Kit, D+, Rear, B8

034Motorsport

End Link Kit, D+, Rear, B8

0

034Motorsport

GASKET, VALVE COVER 1.8TVALVE

End Link Kit, Front, B9 Audi

034Motorsport

End Link Kit, Front, B9 Audi

EndLink, Rear, B9 Audi Adjusta

034Motorsport

EndLink, Rear, B9 Audi Adjusta

End Links, Frt, MS, B5/6/7 C5

034Motorsport

End Links, Frt, MS, B5/6/7 C5

Tie Rod Kit, B8

034Motorsport

Tie Rod Kit, B8

Tow Hook Kit, B6 B7

034Motorsport

Tow Hook Kit, B6 B7

Rebld Kit, EL, Frt, B5/6/7 C5

034Motorsport

Rebld Kit, EL, Frt, B5/6/7 C5

Brace, Driveshaft Tunnel, B8

034Motorsport

Brace, Driveshaft Tunnel, B8

Ign Coil, 5pk, Ylw, MQB Style

034Motorsport

Ign Coil, 5pk, Ylw, MQB Style

HOSE SET,A4 058 LATEBREATHER

034Motorsport

HOSE SET,A4 058 LATEBREATHER

HOSE SET,A4 058 EARLYBREATHER

034Motorsport

HOSE SET,A4 058 EARLYBREATHER

Insert, Rear Subframe B8 A4

034Motorsport

Insert, Rear Subframe B8 A4

End Link Kit, D+, Rear, B9

034Motorsport

End Link Kit, D+, Rear, B9

END LINK,SWAYBAR,SPH REAR B5S

034Motorsport

END LINK,SWAYBAR,SPH REAR B5S

END LINK,B6-B7 REAR ADJADJUST

034Motorsport

END LINK,B6-B7 REAR ADJADJUST

REGULATOR,FUEL,ADJ INTERNAL03

034Motorsport

REGULATOR,FUEL,ADJ INTERNAL03

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