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:exterior components Parts
2182 parts available
Shop aftermarket parts for the Audi A4. Verified fitment, free shipping, 30-day returns.

PowerStop
Power Stop 06-09 Audi A4 Front Evolution High Carbon Geomet Coated Rotor

Putco
Putco LumaCore 1157 Red - Pair (x3 Strobe w/ Bright Stop)

Putco
Putco F1 LED Kit - Pair H7 High Power

Putco
Putco Mini-Halogens - 3157 Super Orange

Putco
Putco 1156 - Amber Metal 360 LED

Putco
Putco Mini-Halogens - 3157 Jet Yellow

Putco
Putco LumaCore 3157 Red - Pair (x3 Strobe w/ Bright Stop)

Putco
Putco 194 - Green Metal 360 LED

Putco
Putco Mini-Halogens - 194 Mega Red

Putco
Putco Mini-Halogens - 1157 - Super Orange

Putco
Putco Double White H1 - Pure Halogen HeadLight Bulbs

Putco
Putco 1156 - Plasma LED Bulbs - Red

Putco
Putco Mini-Halogens - 3157 Night White

Putco
Putco Optic 360 - High Power LED Fog Lamp Bulbs - H11 / H16 Type 2

Putco
Putco Jet Yellow H1 - Pure Halogen HeadLight Bulbs

Putco
Putco High Intensity Discharge Bulb - Ion Spark White/5000K - D1S

Putco
Putco 3157 - Amber Metal 360 LED

PowerStop
Power Stop 96-99 Audi A4 Front Z17 Evolution Ceramic Brake Pads w/Hardware

PowerStop
Power Stop 10-13 Audi A3 Rear Z26 Extreme Street Brake Pads w/Hardware

Putco
Putco LumaCore 3157 White - Pair

Putco
Putco Mini-Halogens - 921 Jet Yellow

Putco
Putco Mini-Halogens - 921 Mega Red

Putco
Putco Nitro 360 Fog Light Bulbs - White/Yellow - H7

Putco
Putco 194 - Warm White Metal 360 LED

Putco
Putco 1157 - Plasma SwitchBack LED Bulbs - White/Amber

Putco
Putco 1157 - White Metal 360 LED

Putco
Putco Mini-Halogens - 921 Night White

PowerStop
Power Stop 05-09 Audi A4 Rear Evolution High Carbon Geomet Coated Rotor

PowerStop
Power Stop 96-01 Audi A4 Quattro Rear Autospecialty Brake Rotor

PowerStop
Power Stop 96-01 Audi A4 Quattro Rear Evolution High Carbon Geomet Coated Rotor

PowerStop
Power Stop 17-18 Audi A4 Front Z16 Evolution Ceramic Brake Pads

PowerStop
Power Stop 17-19 Audi A4 Front Z17 Evolution Ceramic Brake Pads w/Hardware

PowerStop
Power Stop 96-04 Audi A4 Front Autospecialty Brake Rotor

PowerStop
Power Stop 17-19 Audi A4 Front Autospecialty Brake Rotor

PowerStop
Power Stop 99-06 Audi A4 Front Z17 Evolution Ceramic Brake Pads w/Hardware

PowerStop
Power Stop 10-13 Audi A3 Rear Z17 Evolution Ceramic Brake Pads w/Hardware

PowerStop
Power Stop 02-06 Audi A4 Rear Autospecialty Brake Rotor

Gates
Gates Micro-V Belt

3D MAXpider
3D MAXpider 2009-2017 Audi A4/S4/RS4/A5/S5 Kagu 1st Row Floormat - Gray

Torque Solution
Torque Solution Billet Shift Knob (Black) Volkswagen/Audi Manual Transmission

3D MAXpider
3D MAXpider 2017-2019 Audi A4/S4/A5/S5 Kagu 1st Row Floormat - Tan

3D MAXpider
3D MAXpider 2017-2019 Audi A4/ S4 Kagu Cargo Liner - Gray

3D MAXpider
3D MAXpider 2009-2016 Audi A4/ S4/ RS4 Sedan Kagu Cargo Liner - Tan

BMC
BMC 2016+ Audi A4 (8W) 2.0 TDI Replacement Cylindrical Air Filter

BMC
BMC 01-08 Audi A4 1.6L Replacement Panel Air Filter

Victor Reinz
MAHLE Original Audi A4 05-02 Valve Cover Set

Victor Reinz
MAHLE Original Audi A4 05-02 Camshaft Seal

Torque Solution
Torque Solution Coil Pack Adapter: Audi / VW 1.8t ALL

Torque Solution
Torque Solution Billet Shift Knob (Neo Chrome) Volkswagen/Audi Manual Transmission

Torque Solution
Torque Solution Boost Tap: Volkswagen 2.0T / Audi

Torque Solution
Torque Solution Billet Shift Knob (Red) Volkswagen/Audi Manual Transmission

3D MAXpider
3D MAXpider 2017-2019 Audi A4/ S4 Kagu Cargo Liner - Black

3D MAXpider
3D MAXpider 2009-2016 Audi A4/S4/RS4 Kagu 2nd Row Floormats - Black

Victor Reinz
MAHLE Original Audi A4 05-97 Intake Manifold Set

Torque Solution
Torque Solution Boost Tap Kit Volkswagen 2.0T / Audi

Victor Reinz
MAHLE Original Audi A3 08-06 Camshaft Seal

Victor Reinz
MAHLE Original Audi 90 95-93 Intake Manifold Set

Victor Reinz
MAHLE Original Audi A4 01 Timing Cover Set

BMC
BMC 93-94 Alpina B10 I 4.0 Replacement Panel Air Filter

Torque Solution
Torque Solution Throttle Body Spacer (Black): Audi / Volkswagen 2.0T FSI SI
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