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 Parts
8164 parts available
Shop aftermarket parts for the Audi A4. Verified fitment, free shipping, 30-day returns.

Stoptech
Centric OE Coated Front & Rear Brake Kit (4 Wheel)

KW
KW Coilover Kit V1 Audi A4 (8E/B6/8H) Avant + Convertible; FWD; all engines

EBC
EBC S5 Brake Pad and Rotor Kit

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

Stoptech
StopTech 12 Audi S4 Rear Right Drilled Rotor

EBC
S9KF1034 FRONT EBC Stage 9 Kit

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

Exedy
Exedy Flywheel

H&R
H&R 09-16 Audi A4 Quattro/S4 (AWD) B8 30mm Adj. 2 Hole Sway Bar - Front

Stoptech
StopTech 98-09 Audi A4/A6 Quattro/S4 355x32mm Rotors Front Big Brake Kit

EBC
EBC S9 Brake Pad and Rotor Kit

EBC
EBC S4 Brake Pad and Rotor Kit

South Bend Clutch
South Bend / DXD Racing Clutch 97-05 Audi A4/A4 Quattro B5 1.8T Stg 2 Daily Clutch Kit

CP Pistons
CP Piston & Ring Set for Audi/VW 1.8L 20V - Bore (81.5mm) - CR (8.5:1) - Set of 4

EBC
EBC S5 Brake Pad and Rotor Kit

EBC
EBC S5 Brake Pad and Rotor Kit

Stoptech
Centric OE Coated Front Brake Kit (2 Wheel)

aFe
aFe MagnumFORCE Intakes Stage-2 PDS AIS PDS Audi A4 06-08 L4-2.0L (t)

EBC
EBC S4 Brake Pad and Rotor Kit

South Bend Clutch
South Bend Clutch 97-05 VW Passat L 1.8T - Stg 4 Extreme Clutch Kit - No Flywheel
SPYDER
Spyder Audi A4 02-05 LED Tail Lights Black ALT-YD-AA402-LED-BK

EBC
EBC S10 Brake Pad and Rotor Kit

South Bend Clutch
South Bend / DXD Racing Clutch 09+ Audi A4 2.0L Turbo Stg. 2 Endurance Clutch Kit

Stoptech
Centric OE Grade Front & Rear Brake Kit (4 Wheel)

EBC
S9KF1638 FRONT EBC Stage 9 Kit

EBC
EBC S4 Brake Pad and Rotor Kit

Advanced Clutch
ACT 06-08 Audi A4 (B7) XACT Flywheel Streetlite

EBC
S9KF1562 FRONT EBC Stage 9 Kit

EBC
EBC S4 Brake Pad and Rotor Kit

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

JE Pistons
JE Pistons VW 1.8T 20V 83mm Bore (+2mm Oversize) 9.25:1 CR -7.7cc Dome Piston Kit (Set of 4)

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

South Bend Clutch
South Bend / DXD Racing Clutch 96-01 Audi A4/A4 Quattro AHA/ATQ 2.8L Stg 2 Daily Clutch Kit

KW
KW Coilover Kit V1 Audi A4 (8E/B6 8H QB6) Avant + Convertible; Quattro; all engines

EBC
EBC 09-11 Audi A4 2.0 Turbo USR Slotted Front Rotors

EBC
EBC 92-94 Audi 100 2.8 USR Slotted Front Rotors

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

Hawk Performance
Hawk Talon 2002 Audi A4 Sedan Drilled and Slotted Front Brake Rotor Set

EBC
S12KR1359 REAR EBC Stage 12 Kit
EBC
S10KR1315 REAR EBC Stage 10 Kit

EBC
EBC S11 Brake Pad and Rotor Kit

Advanced Clutch
ACT 1997 Audi A4 HD/Perf Street Rigid Clutch Kit

Stoptech
StopTech BBK 05-08 Audi A4 Quattro Front w/ Silver ST-40 Calipers Slotted 332x32mm Rotors Pads

Stoptech
StopTech Drilled Sport Brake Rotor

South Bend Clutch
South Bend / DXD Racing Clutch 97-05 Audi A4/A4 Quattro B5 1.8T Stg 3 Endur Clutch Kit

H&R
H&R 08-15 Audi A5/A5 Quattro/S5 (2WD/AWD) B8 OE Sport Spring

South Bend Clutch
South Bend / DXD Racing Clutch 96-97 Audi S6 20V AAN (Sol FW Conv) 2.2T Stg 4 Extr Clutch Kit w/ FW

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

EBC
S20K1431 FRONT/REAR EBC Stage 20 Kit

Magnaflow
MagnaFlow OEM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter 51461

Wiseco
Wiseco VW/Audi Turbo Conversion 20V Cyl Head 81.0mm Bore 8.5 CR Pistons (Inc Rings)

Hawk Performance
Talon Street Rotor/B

EBC
EBC S2 Brake Pad and Rotor Kit

EBC
EBC 2009-2011 Audi A4 2.0L Turbo BSD Front Rotors

H&R
H&R 09-16 Audi A4 Quattro/S4 (AWD) B8 24mm Non Adj. Sway Bar - Rear

JE Pistons
JE Pistons Volkswagen 2.0T TSI 83mm Bore 10.1 CR -5.2cc Dish Piston (Set of 4)

Magnaflow
MagnaFlow 2005-2009 Audi A4 Quattro OEM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter

EBC
S12KF1478 FRONT EBC Stage 12 Kit

EBC
S10KR1241 REAR EBC Stage 10 Kit

EBC
EBC S13 Brake Pad and Rotor 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