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.

R1 Concepts
R1 11-17 Audi A4 ALLROAD Front Right Drilled Black Brake Rotor

R1 Concepts
R1 08-12 Audi A4 FWD Front Left Drilled Black Brake Rotor

R1 Concepts
R1 97-06 Audi A4 FWD Front Left Drilled Black Brake Rotor
R1 Concepts
R1 02-06 Audi A4 FWD Rear Right Drilled Black Brake Rotor
R1 Concepts
R1 02-06 Audi A4 FWD Rear Left Drilled Black Brake Rotor

Brembo
Brembo OE Ceramic Disc Brake Kit
R1 Concepts
R1 11-16 Audi A4 Quattro Front Optimum OE Pads & Hardware Kit
do88
do88 01-04 Audi A4 1.8T (B6 190hp) Pressure Hoses - Blue
R1 Concepts
R1 02-05 Volkswagen Passat Front Right Slotted Black Brake Rotor
R1 Concepts
R1 96-05 Audi A4 Quattro Rear Right Slotted Black Brake Rotor

R1 Concepts
R1 17-19 Audi A4 Quattro Front Right Slotted Black Brake Rotor
R1 Concepts
R1 17-19 Audi A4 Quattro Front Left Slotted Black Brake Rotor

Supertech
Supertech Toyota 4AGE 20v Exhaust Valve Springs - Set of 20

R1 Concepts
R1 11-17 Audi A4 ALLROAD Front Left Slotted Black Brake Rotor

R1 Concepts
R1 08-12 Audi A4 FWD Front Right Slotted Black Brake Rotor

R1 Concepts
R1 02-06 Audi A4 FWD Rear Right Slotted Black Brake Rotor
R1 Concepts
R1 02-06 Audi A4 FWD Rear Left Slotted Black Brake Rotor

do88
do88 Audi/Seat/Skoda/Volkswagen 1.8T/2.0T (MQB) Pressure Hoses - Blue

R1 Concepts
R1 2000-2018 Audi A6 Quattro Rear R1 Performance Sport Pads & Hardware Kit

do88
do88 01-04 Audi A4 1.8T Inlet Hose - Black

Diode Dynamics
Diode Dynamics H7 White SL2 Pro LED Bulbs (Pair)

do88
do88 01-05 Audi A4 1.8T/09-10 Seat Exeo 1.8T Pressure Hoses - Blue
R1 Concepts
R1 2016-2025 Audi A4 (Mexico) Front R1 Optimum OE Pads & Hardware Kit

do88
do88 01-04 Audi A4 1.8T (B6 190hp) Pressure Hoses - Black

R1 Concepts
R1 16-25 Audi A4 Allroad Front Optimum OE Pads & Hardware Kit

do88
do88 01-04 Audi A4 1.8T Inlet Hose - Blue

R1 Concepts
R1 08-17 Audi A5 Rear Brake Rotor Set w/Euro Ceramic Pads and Hardware

do88
do88 01-05 Audi A4 1.8T/09-10 Seat Exeo 1.8T Pressure Hoses - Black

Gates
Gates 00-02 Volkswagen Passat 4-Cyl. 1.8L Valve Cover to Tube Emission Control Hose

Gates
Gates 98-05 Volkswagen Passat 4-Cyl. 1.8L Heater To Pipe-1 Molded Heater Hose

Gates
Gates 95-98 Audi A6 V-6 2.8L Cam. Belt Automotive Timing Belt

Gates
Gates 05-08 Audi A4 4-Cyl. 2.0L Upper Molded Coolant Hose

Gates
Gates 98-05 Volkswagen Passat 4-Cyl. 1.8L Upper Molded Coolant Hose

Torque Solution
Torque Solution 17+ Audi A4 2.0 Transmission Mount Insert

Gates
Gates 05-06 Toyota Corolla 4-Cyl. 1.8L Serpentine Standard V-Ribbed Belt

Seibon
Seibon 17-22 Audi A4/S4 (B9) OEM-Style Carbon Fiber Hood

Gates
Gates 02-06 Audi A4 4-Cyl. 1.8L Hot Side Turbocharger Hose

Moog
MOOG 98-04 Audi A6 Front Right Upper Forward Control Arm

Moog
MOOG 20-17 Audi A4 Allroad Front Right Upper Rearward Control Arm

Moog
MOOG 20-17 Audi A4 Allroad Front Left Upper Rearward Control Arm

Moog
MOOG 17-19 Audi A4 allroad Front Upper Forward Control Arm

Moog
MOOG 13-15 Audi RS5 Front Right Upper Forward Control Arm

Moog
MOOG 13-15 Audi RS5 Front Left Upper Rearward Control Arm
Stoptech
Centric 09-16 Audi A4/A4 Quattro/A5 / 17-20 Porsche Macan Rear Brake Hose

Covercraft
UVS100 Premier Series Custom Sunscreen

Covercraft
UVS100 Premier Series Custom Sunscreen

Covercraft
UVS100 Premier Series Custom Sunscreen

Covercraft
Covercraft UVS100 Custom Sunscreen - Blue

Stoptech
Centric 96-01 Audi A4/A4 Quattro / 98-01 Audi A6/A6 Quattro Semi-Loaded Brake Caliper - Front Left

Fel-Pro
Fel-Pro Volkswagen Passat OS 30736 Engine Oil Pan Gasket Set PermaDry Molded Rubber

Covercraft
Covercraft Custom Fit Car Covers - 3-Layer Moderate Climate Gray

Covercraft
UVS100 Premier Series Custom Sunscreen

Covercraft
UVS100 Premier Series Custom Sunscreen

Covercraft
UVS100 Premier Series Custom Sunscreen

Covercraft
Covercraft UVS100 Custom Sunscreen - Blue

Covercraft
Covercraft Custom Fit Car Covers - WeatherShield HP Black

Covercraft
Covercraft Custom Fit Car Covers - WeatherShield HD Gray

Fel-Pro
Fel-Pro Audi A6 Quattro VS 50866 R Engine Valve Cover Gasket Set

Fel-Pro
Fel-Pro Volkswagen Passat ES 71172 Engine Cylinder Head Bolt Set

Fel-Pro
Fel-Pro Audi A4 Quattro VS 50857 R Engine Valve Cover Gasket Set
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