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 8H QB6) Avant + Convertible; Quattro; all engines

Bilstein
Bilstein B1 iRC - B16 Ridecontrol System

KYB
KYB Shocks & Struts Strut Boots Rear AUDI A4 1995-06

SPC Performance
SPC Performance Pinch Bolt Kit Audi

H&R
H&R 09-16 Audi A4 Quattro/S4 (AWD) B8 Super Sport Spring

KONI
Koni Special Active Shock 11-16 Audi A6 FWD / AWD Front

Bilstein
Bilstein B16 2017+ Audi A4 / A4 Quattro Front and Rear Performance Suspension System

H&R
H&R 09-14 Audi A4 Avant Quattro (AWD) B8 24mm Non Adj. Sway Bar - Rear

SPC Performance
SPC Performance EZ Cam XR Bolts (Pair) (Replaces 17mm Bolts)

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

KW
KW H.A.S. Audi A4 S4 (8K/B8) Avant Quattro All

H&R
H&R 96-01 Audi A4 V6 (2WD) B5 Sport Spring

H&R
H&R 17-20 Audi A4 Premium/A4 Premium Plus/A4 Prestige (2WD) B9 Sport Spring

H&R
H&R 09-16 Audi A4 Quattro/S4 (AWD) B8 RSS+ Coil Over (Damping Adjustable/Tuner Fitment)

KW
KW Street Comfort Kit Audi A4 (8E/B6 8H QB6) Avant + Convertible; Quattro; all engines

KONI
Koni Special Active Shock FSD 02-08 Audi A4 FWD/AWD Front

KW
KW Coilover Kit V3 Audi A4 (8E/B6/B7) Sedan; FWD; all engines

Bilstein
Bilstein B12 1998 Audi A4 Avant Front and Rear Suspension Kit

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

Bilstein
Bilstein B12 1996 Audi A4 Quattro Base Front and Rear Suspension Kit

H&R
H&R 98-01 Audi A4 Avant (2WD) B5 Sport Cup Kit (Before 1/31/99)

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

KW
KW Coilover Kit V2 Audi A4 S4 (8D/B5 B5S) Sedan + Avant; Quattro incl. S4; all engines

Hotchkis
Hotchkis 02-07 Audi A4 B6/B7 Sway Bar Set Rebuild Kit (22823)

Bilstein
Bilstein 2017 Audi A4 B4 OE Replacement Shock Absorber - Front

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

KW
KW Coilover Kit V1 2017+ Audi A4 (B9) Sedan / A5 Coupe Quattro w/o Electronic Dampening (50mm)

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

KW
KW Audi A4 B9 Sedan 2WD Without EDC 50mm Coilover Kit V1

KW
KW Coilover Kit V2 Audi A7 (4G)

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

KYB
KYB Shocks & Struts Strut Mount Rear Audi A4 (inc Quattro) 02-09 / Audi S4 (Exc Cabriolet) 04-08

Bilstein
Bilstein B12 2002 Audi A4 Quattro Avant Front and Rear Suspension Kit

KW
KW Coilover Kit DDC ECU A4/ S4 (8K/B8) w/o Electronic Dampening Control

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

KW
KW Coilover Kit V1 Audi A4 S4 (8K/B8) w/o electronic dampening control Sedan FWD + Quattro

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

Air Lift
Air Lift Replacement Air Spring Double Bellows Type

H&R
H&R 02-08 Audi A4/A4 Avant (2WD) V6 8E Sport Spring (Incl. Facelift Model)

Air Lift
Air Lift Replacement Air Spring Double Bellows Type

Bilstein
Bilstein B12 (Pro-Kit) 17-20 Audi A4 Front Suspension Lowering Kit (w/o Electronic Suspension)

Eibach
Eibach Pro-Kit for 17-18 Audi A4 Quattro B9

Bilstein
Bilstein B8 17-19 A4/A4 Quattro / 18-19 S4/S5 18-20 A5/S5 Sportback w/ Sport Susp 49mm Front Shock

KW
KW A4 B9 Sedan 2WD 50mm H.A.S.

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

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

KONI
Koni 1145 Sport Kit 02-08 Audi A4 Quattro 4cyl Sedan

Bilstein
Bilstein B16 2001 Audi S4 Base Front and Rear Performance Suspension System

KW
KW Coilover Kit V1 Audi A7 (4G)

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

H&R
H&R Trak+ 25mm DRA Wheel Adapter 5/112 - 57.1 CB - 14x1.5 to 5/112 - 66.5 CB - 14x1.5

H&R
H&R 02-09 Audi A4 Cabrio (2WD/AWD) 4 Cyl/V6 8H Street Perf. Coil Over (Incl. Facelift Model)

SPC Performance
SPC Performance Audi B9 Front Upper Control Arm Set Left & Right Pair

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

Bilstein
Bilstein B8 02-06 Audi A4 Front 46mm Monotube Shock Absorber

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

Bilstein
Bilstein 17-20 Audi A4 B8 Performance Plus Shock Absorber - Front

Eibach
Eibach Sportline Kit for 2017+ Audi A4 / A5 Quattro / S5 (B9)

KW
KW Coilover Kit V1 Audi A4 (8D/B5) Sedan + Avant; FWD; all engines VIN# up to 8D*X199999
H&R
H&R 02-08 Audi A4 Avant Quattro/A4 Quattro (AWD) 4 Cyl/V6 8E 32mm Adj. 2 Hole Sway Bar - Front
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