QUATTRO MEETS PRACTICALITY
B5 through B9 — Audi's compact sedan with available Quattro AWD and turbo power.
Audi A4 HERITAGE
THE QUATTRO COMPACT
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
CATEGORIES
Top product categories for the Audi A4
BRANDS
Top brands for Audi A4 builds
READY TO BUILD YOUR AUDI A4?
Pick your year and trim to shop verified-fit Audi A4 parts.
Shop all Audi A4 parts →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.

KW
KW Coilover Kit V2 Audi A4 (8E/B6/B7) Sedan; FWD; all engines

Bilstein
Bilstein B6 2002 Audi A4 Base FWD Rear 46mm Monotube Shock Absorber

SPC Performance
SPC Performance 98-08 Audi A4/S4/RS4 / 98-05 VW Passat Front Upper Multi Control Arm - Left

KW
KW Street Comfort Kit Audi A4 (8E/B6/8H) Avant + Convertible; FWD; all engines

KYB
KYB Shocks & Struts Strut Mounts Front AUDI A4 1995-01 AUDI A6 1998-04 AUDI A8 1997-03 AUDI Allroad

H&R
H&R 09-17 Audi A5 Cabrio/A5 Quattro (AWD) B8 Sway Bar Kit - 30mm Front/24mm Rear

KONI
Koni Special Active Shock Front - 09-16 Audi A4 FWD/AWD

H&R
H&R 02-08 Audi A4/A4 Avant (2WD) 4 Cyl/V6 8E Street Perf. Coil Over (Incl. Facelift Model)

KW
KW A4 B9 Sedan 2WD 48.5mm H.A.S.

Bilstein
Bilstein B4 2009 Audi A4 Trendy Plus Rear Shock Absorber

H&R
H&R 96-01 Audi A4 4 Cyl (2WD) B5 Sport Spring

KW
KW Coilover Kit V3 Audi A4 S4 (8D/B5 B5S) Sedan + Avant; Quattro incl. S4; all engines

H&R
H&R 02-09 Audi A4 Cabrio (2WD/AWD) 4 Cyl/V6 8H Sport Spring (Incl. Facelift Model)

Hotchkis
Hotchkis 02-06 Mini Cooper Sport Rear Sway Bar Rebuild Kit (22800R)

Air Lift
Air Lift Performance 17-25 Audi A4 B9 Quattro Front Kit

SPC Performance
SPC Performance Audi B9 Upper Control Arm Front Right

SPC Performance
SPC Performance 09-17 Audi A4/RS4/S4 / 09-16 Audi A5/S5 Front Adj Upper Multi Link Control Arm Kit

KW
KW Coilover Kit V2 Audi A5 S5 (all engines all models) w/o electronic dampening control

KW
KW Coilover Kit V1 Audi A4 S4 (8D/B5 B5S) Sedan + Avant; Quattro incl. S4; all engines

KW
KW Coilover Kit V1 2018+ Audi A5 (B9) Sportback Quattro w/o Electronic Dampening (50mm)

KW
KW Coilover Kit V2 Audi A4 (8E/B6) Sedan Quattro; all engines exc S4

H&R
H&R 09-16 Audi A4/A5/S4/S5 Cabrio/Quattro (AWD) B8 VTF Adjustable Lowering Springs (Incl. MRC)

KW
KW A4 B9 Sedan 2WD With Electronic Dampers H.A.S.

H&R
H&R 09-16 Audi A4/A4 Quattro/S4 (2WD/4WD) B8 OE Sport Spring

KONI
Koni Sport (Yellow) Shock 95-01 Audi A4 Sedan & Avant Quattro - Front

SPC Performance
SPC Performance 01-08 Audi A4 Rear Toe Kit

H&R
H&R 09-16 Audi A4 Quattro/S4 (AWD) B8 Sway Bar Kit - 30mm Front/24mm Rear

KW
KW Coilover Kit V1 2017+ Audi A4 (B9) Sedan / A5 Coupe Quattro w/o Electronic Dampening (48.5mm)
H&R
H&R 17-21 Audi A4 Premium/A4 Premium Plus (2WD) B9 Street Perf. Coil Over (Before 7/11/16 & w/o MRC)

KONI
Koni Sport (Yellow) Shock 02-08 Audi A4 FWD & Quattro Sedan/ Avant & Cabriolet - Rear

Bilstein
Bilstein B6 1996 Audi A4 Base Front 36mm Monotube Shock Absorber

Bilstein
Bilstein 17-21 Audi A4 Quattro / 18-21 A5 Quattro Performance Shock Front

Bilstein
Bilstein B4 2009 Audi A4 Base Front Shock Absorber

KW
KW Coilover Kit V3 Audi A7 (4G)

KONI
Koni Sport (Yellow) Shock 09-13 Audi A4 FWD & Quattro excl. Audi S-line suspension - Front

Bilstein
Bilstein B4 2005 Audi S4 Base Rear Twintube Shock Absorber

Eibach
Eibach Pro-Kit for 02-08 Audi A4 Avant Wagon/Quattro/B6/B7

H&R
H&R Trak+ 10mm DR Wheel Adaptor Bolt 5/112 Center Bore 57.1 Bolt Thread 14x1.5 - Black

KYB
KYB Shocks & Struts Excel-G Front AUDI A4 2007

KONI
Koni Special Active Shock Kit 02-08 Audi A4 Quattro 4cyl. Sedan

KW
KW Street Comfort Kit Audi A4 S4 (8K/B8) w/o electronic dampening control Sedan FWD + Quattro

KYB
KYB Shocks & Struts Excel-G Front AUDI A4 1995-01

Bilstein
Bilstein B4 2009 Audi A4 Trendy Plus Rear Shock Absorber

Bilstein
Bilstein B8 1998 Audi A4 Quattro Avant Rear 36mm Monotube Shock Absorber

Bilstein
Bilstein B8 Performance Plus 17-19 Audi A4 / A4 Quattro Front Monotube Shock

KW
KW Street Comfort Kit Audi A7 (4G)

KYB
KYB Shocks & Struts Strut Mounts Rear AUDI A4 2003-09 AUDI A6 1995-10 AUDI RS4 2007-08 AUDI S4 2004-

KONI
Koni Special Active Shock 09-16 Audi A4 FWD / AWD Front

SPC Performance
SPC Performance 10-14 VW Golf / 05-10 VW Jetta / 06-09 VW Rabbit Rear Adjustable Camber Arm

Bilstein
Bilstein B8 95-00 Audi A4/A6 (Base/Avant)/96-00 VW Passat Front 36mm Monotube Shock Absorber

Bilstein
Bilstein B8 Performance Audi A4 2006-2002 / A4 Quattro 2006-2002 Rear Monotube Shock

KYB
KYB Shocks & Struts Excel-G Rear AUDI A4 1995-01

Bilstein
Bilstein B8 2002 Audi A4 Base FWD Front 46mm Monotube Shock Absorber

KYB
KYB Shocks & Struts Excel-G Front 2009-2012 AUDI A4/A4 Quattro

Bilstein
Bilstein B6 2009 Audi A4 Quattro Avant Rear 46mm Monotube Shock Absorber

KW
KW H.A.S. 2017+ Audi A4/S4 B9 w/ EDC

SPC Performance
SPC Performance 09-17 Audi A4/S4/RS4 /09-16 Audi A5/S5 Front Adj Upper Racing Control Arm Kit

KW
KW Street Comfort Kit Audi A6 (4F) Sedan; FWD + Quattro; all engines

KYB
KYB Shocks & Struts Excel-G 09-13 Audi A4 Rear Strut
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