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 V3 Audi A4 (8E/B6 8H QB6) Avant + Convertible; Quattro; all engines

Bilstein
Bilstein B12 2003 Audi A4 Quattro Base Front and Rear Complete Suspension Kit

KW
KW Coilover Kit V3 Audi A4 S4 (8K/B8) w/o electronic dampening control Sedan FWD + Quattro

Bilstein
Bilstein B8 1996 Audi A4 Base Rear 36mm Monotube Shock Absorber

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

SPC Performance
SPC Performance Audi Rear Cam Adjusting Tool

KW
KW Coilover Kit V3 Audi A4 (8D/B5) Sedan + Avant; FWD; all engines VIN# up to 8D*X199999

H&R
H&R 09-14 Audi A4 Avant Quattro/S5 Cabrio (AWD) B8 Sport Spring

Bilstein
Bilstein B16 (DampTronic) 18-21 Audi S5 Front and Rear Suspension System

H&R
H&R 96-01 Audi A4 Quattro (AWD) B5 Race Spring

KONI
Koni STR.T (Orange) Shock 02-08 Audi A4 FWD and Quattro - Front

H&R
H&R 15-21 Mercedes-Benz C300 Cabrio/Sedan W205 VTF Adjustable Lowering Springs (Non AWD)

KYB
KYB Shocks & Struts Strut Mounts Rear AUDI A4 1995-01 VOLKSWAGEN Quantum 1982-88

Bilstein
Bilstein B4 1997 Audi A4 Quattro Base Rear Shock Absorber

H&R
H&R 98-01 Audi A4 Avant (2WD) B5 Street Perf. Coil Over

KYB
KYB Shocks & Struts Strut Boots Front AUDI A4 1995-10 AUDI A6 1998-10 AUDI A8 1997-03 AUDI RS4 2007-

H&R
H&R 02-08 Audi A4 Avant Quattro/A4 Quattro (AWD) 4 Cyl/V6 8E 20mm Adj. 2 Hole Sway Bar - Rear

Whiteline
Whiteline 94-05 Audi A4/ 97+ A6/10/97+ S4 / 96-05 VW Passat Front Camber Correction C/A U/I Bushing

Hotchkis
Hotchkis 96-02 Audi Quattro S4 Front Sway Bar Kit

Bilstein
Bilstein B12 1999 Audi A4 Base Front and Rear Suspension Kit

Bilstein
Bilstein 17-20 Audi A4 B4 OE Replacement Shock Absorber - Rear

Bilstein
Bilstein B4 2009 Audi A4 Trendy Plus Front Shock Absorber

Eibach
Eibach 09-15 Audi A4 4Dr/09-12 A4 5Dr/10-13 S4/08-11 S5 2Dr B8 2.0/3.2/4.2L Pro-Alignment 4 Arm Kit

KW
KW H.A.S. 2017+ Audi A4 Quattro / 2018+ Audi A5 Quattro/S5 (B9) AWD w/o Electronic Dampers (48.5mm)

KW
KW Electronic Damping Cancellation Kit 17-18 Audi S5 AWD

Bilstein
Bilstein B12 2002 Audi A4 Quattro Le Mans Front and Rear Suspension Kit

KW
KW Coilover Kit V1 Audi S4 (8E/8H QB6) Wagon/Convertible

KONI
Koni 1125 STR.T Kit 02-08 Audi A4 Quattro 4cyl Avant

Bilstein
Bilstein B12 2003 Audi A4 Cabriolet Front and Rear Suspension Kit

Bilstein
Bilstein B14 2004 Audi A4 Avant Front and Rear Suspension Kit

Bilstein
Bilstein B12 2002 Audi A4 Base Front and Rear Suspension Kit

KONI
Koni Sport (Yellow) Shock 83-94 Audi 100 Sedan & Avant FWD & Quattro w/ rear 10mm top nut - Front

KYB
KYB Shocks & Struts Excel-G Rear AUDI A4 2004-08

Bilstein
Bilstein B6 17-20 Audi A4 Rear Monotube Shock Absorber w/o Electronic Suspension

KYB
KYB Shocks & Struts Strut Boots Rear AUDI A4 2004-09 AUDI A6 2005-10 AUDI S4 2007-09 AUDI S6 2007-10

KW
KW Coilover Kit V3 Audi A4 (8E/B6) Sedan Quattro; all engines exc S4

Bilstein
Bilstein 17-20 Audi A4 B12 Pro-Kit

Bilstein
Bilstein B12 2004 Audi A4 Quattro Avant Front and Rear Suspension Kit

H&R
H&R 09-17 Audi A5 Cabrio/A5 Quattro (AWD) B8 30mm Adj. 2 Hole Sway Bar - Front

KYB
KYB Shocks & Struts Excel-G Rear AUDI A4 2000-06

H&R
H&R 09-14 Audi A4 Avant Quattro (AWD) B8 Sway Bar Kit - 30mm Front/24mm Rear

H&R
H&R 02-08 Audi A4/A4 Avant (2WD) 4 Cyl/V6 8E Sway Bar Kit - 32mm Front/20mm Rear

Bilstein
Bilstein B8 2009 Audi A4 Quattro Avant Rear 46mm Monotube Shock Absorber

H&R
H&R 98-01 Audi A4 Avant (2WD) B5 Sport Cup Kit (After 2/1/99)

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

KONI
Koni Special Active Shock FSD 02-08 Audi A4 Rear

Bilstein
Bilstein B12 2009 Audi A4 Base Front and Rear Suspension Kit

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

KONI
Koni 1125 STR.T Kit 02-08 Audi A4 Quattro 4cyl Sedan

H&R
H&R 96-01 Audi A4/A4 Avant (2WD) 4 Cyl/V6 B5 32mm Adj. 2 Hole Sway Bar - Front

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

KW
KW Street Comfort Kit Audi A4 S4 (8K/B8) w/o electronic dampening control Avant Quattro All

Eibach
Eibach Pro-Kit for 09-15 Audi A4 2.0L Sedan

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

H&R
H&R 00-04 Porsche 911/996 Turbo (AWD) Street Perf. Coil Over

SPC Performance
SPC Performance 17-19 Audi A4 Knuckle Pinch Hardware Bolt & Nut

H&R
H&R 02-08 Audi A4 Avant Quattro/A4 Quattro (AWD) V6 8E Sport Spring (Incl. Facelift Model)

Bilstein
Bilstein B6 1999 Audi A4 Base Rear 36mm Monotube Shock Absorber

H&R
H&R 96-01 Audi A4 Quattro (AWD) B5 Street Perf. Coil Over

Air Lift
Air Lift Performance 09-15 Audi A4/A5/S4/S5/RS4/RS5 Front Kit
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