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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Verified Fitment

Audi A4 Category:suspension and components Parts

659 parts available

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

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D

Dorman

CONTROL ARM

Megan Racing sway bar

Megan Racing

Megan Audi A4 A5 17 Rear Sway Bar (25.4mm)

Dorman auto part

Dorman

LATERAL ARM

M

Megan Racing

Megan Audi A4 A5 17 Front Sway Bar (32mm)

Dorman control arms

Dorman

CONTROL ARM

Megan Audi A4 09-13 A5 08-13 S5 08-11 Front Sway Bar 30mm 3pcs

Megan Racing

Megan Audi A4 09-13 A5 08-13 S5 08-11 Front Sway Bar 30mm 3pcs

Megan Racing auto part

Megan Racing

Megan Audi A4 A4 S4 A5 S5 B8 8K 08-14 Front Lower Arm Front 2pcs

D

Dorman

CONTROL ARM

Megan Audi A4 A5 17 Lowering Springs (EXC Wagon)

Megan Racing

Megan Audi A4 A5 17 Lowering Springs (EXC Wagon)

Megan Lowering Springs A4 96-01 FWD 25 LBs Spring Rate: Front K1-146 K2-224 Rear K1-65 K2-168

Megan Racing

Megan Lowering Springs A4 96-01 FWD 25 LBs Spring Rate: Front K1-146 K2-224 Rear K1-65 K2-168

CONTROL ARM

Dorman

CONTROL ARM

SPL PARTS INC. auto part

SPL PARTS INC.

SPL Parts 09-16 Audi B8 & B8.5 A4/A5/S4/S5 Front Endlinks

CONTROL ARM BALL JNT

Dorman

CONTROL ARM BALL JNT

Megan Lowering Springs Audi A4 02-06 FWD 31 LBs Spring Rate: Front K1-202 K2-262 Rear K1-353 K2-353

Megan Racing

Megan Lowering Springs Audi A4 02-06 FWD 31 LBs Spring Rate: Front K1-202 K2-262 Rear K1-353 K2-353

D

Dorman

CONTROL ARM

D

Dorman

CONTROL ARM W/ BALL JOINT

D

Dorman

CONTROL ARM W/ BALL JOINT

BC Racing coilovers

BC Racing

BC Racing BR Series Coilovers For 17- Audi A4/S4 (48.5mm Front Strut) With 10kg/8kg Spring Rates

D

D2 Racing

RS Coilovers w Front Air Cups Gold Control System #D-MI-10-VACF-20 D2-ACK02

CONTROL ARM

Dorman

CONTROL ARM

Dorman control arms

Dorman

CONTROL ARM

Dorman control arms

Dorman

CONTROL ARM

D

D2 Racing

AIR SUSP KIT S4 (AWD) 09-

D

D2 Racing

AIR SUSP KIT S4 (AWD) 09-

H&R springs

H&R

H R Springs Street Perf. Coil Over Kit

H

H&R

H&R 2025 Audi S5 Sedan B10 AWD Sport Springs

B

BC Racing

BC Racing Coilover BR 96-01 A4 FWD

D2 Racing strut brace

D2 Racing

AIR STRUTS A4 (FWD) B9 WA

D2 Racing auto part

D2 Racing

AIR SUSP KIT S4 (AWD) 09-

D2 Racing coilovers

D2 Racing

D2 COILOVERS S4 (AWD) 09-

D2 Racing auto part

D2 Racing

AIR SUSP KIT A4 (FWD) B8

D2 Racing coilovers

D2 Racing

D2 COILOVERS A4 (FWD) B8

D2 Racing coilovers

D2 Racing

RS Coilovers w Front Air Cups Gold Control System #D-AU-40-VACF-20 D2-ACK02

Eibach springs

Eibach

Eibach PRO-KIT Set of 4 Springs Fits AUDI A4 Quattro 2002 to 2008

B

Bilstein

AUDI A4 QUATTRO SPORT;F;B8

Eibach springs

Eibach

Eibach PRO-KIT Set of 4 Springs Fits AUDI S4 2000 to 2002

D2 Racing auto part

D2 Racing

AIR SUSP KIT S4 (AWD) 09-

Eibach springs

Eibach

Eibach PRO-KIT Set of 4 Springs Fits AUDI A4 Quattro 2009 to 2016

D2 Racing auto part

D2 Racing

AIR SUSP KIT A4 (FWD) B9

D2 Racing strut brace

D2 Racing

AIR STRUTS S4 (AWD) 03-08

D2 Racing coilovers

D2 Racing

D2 COILOVERS S4 (AWD) 03-

Eibach springs

Eibach

Eibach PRO-KIT Set of 4 Springs Fits AUDI A4 Quattro 2002 to 2008

CONTROL ARM

Dorman

CONTROL ARM

CONTROL ARM

Dorman

CONTROL ARM

D

D2 Racing

AIR SUSP KIT RS6 4B 02-04

D2 Racing auto part

D2 Racing

AIR SUSP KIT A4 (FWD) B8

D

D2 Racing

AIR SUSP KIT S4 (AWD) 03-

D2 Racing auto part

D2 Racing

AIR SUSP KIT S4 (AWD) 03-

BC Racing coilovers

BC Racing

BC Racing Coilover BR 96-01 A4 AWD

B

BC Racing

BC Racing Coilover BR 08- A4/S5

BC Racing coilovers

BC Racing

BC Racing Coilovers DS Series 96-01 Audi A4 FWD

Dorman control arms

Dorman

SUSPENSION CONTROL ARM AND BALL JOI

D

D2 Racing

AIR SUSP KIT S4 (AWD) 03-

D2 Racing strut brace

D2 Racing

AIR STRUTS S4 (AWD) 09-16

D2 Racing auto part

D2 Racing

AIR SUSP KIT A4 (FWD) B8

D2 Racing auto part

D2 Racing

AIR SUSP KIT A4 (FWD) B8

LATERAL ARM

Dorman

LATERAL ARM

TRACK BAR

Dorman

TRACK BAR

D

D2 Racing

AIR SUSP KIT A6 C5 (AWD)

D2 Racing auto part

D2 Racing

AIR SUSP KIT A4 (FWD) B9

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