QUATTRO MEETS PRACTICALITY

B5 through B9 — Audi's compact sedan with available Quattro AWD and turbo power.

Audi A4 HERITAGE

THE QUATTRO COMPACT

The Audi A4 has been the German compact sport sedan since 1994. The B5 (1.8T) launched the tuner-friendly chassis, the B6/B7 added the K04 turbo upgrade culture, and the B8/B9 brought EA888 turbocharged 2.0T engines that share parts with the VW Golf R / Jetta GLI.

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

3,135
Parts that fit
3,000+
MOTORMIA Builds
EBC
#1 brand by SKUs
$711
Average MSRP

READY TO BUILD YOUR AUDI A4?

Pick your year and trim to shop verified-fit Audi A4 parts.

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Verified Fitment

Audi A4 Parts

8164 parts available

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

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B8 AUDI & VW RACING ARM SET

Specialty Products Inc.

B8 AUDI & VW RACING ARM SET

R1 Concepts Brake Rotor- Blank with Optimum Oe Pads Hdw Fits Audi A4

R1 Concepts

R1 Concepts Brake Rotor- Blank with Optimum Oe Pads Hdw Fits Audi A4

R

R1 Concepts

R1 Concepts Brake Rotor Drilled and Slotted Silver Fits Audi A4

R1 Concepts Brake Rotor- Slotted - Black Fits Audi A4

R1 Concepts

R1 Concepts Brake Rotor- Slotted - Black Fits Audi A4

ACCELERATOR PEDAL SENSOR

STANDARD IGN

ACCELERATOR PEDAL SENSOR

R1 11-17 Audi A4 Allroad Front Left Drilled & Slotted Geoperformance Rotor

R1 Concepts

R1 11-17 Audi A4 Allroad Front Left Drilled & Slotted Geoperformance Rotor

R1 92-08 Audi A6 Quattro Front Left Drilled & Slotted Geoperformance Rotor

R1 Concepts

R1 92-08 Audi A6 Quattro Front Left Drilled & Slotted Geoperformance Rotor

S

STANDARD IGN

SPEED SENSOR

R1 95-07 Ford E-450 Super Duty Front Right Drilled & Slotted Black Brake Rotor

R1 Concepts

R1 95-07 Ford E-450 Super Duty Front Right Drilled & Slotted Black Brake Rotor

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R1 Concepts

R1 Concepts E- Line Series Brake Rotor with Ceramic Brake Pads Hdw Fits Audi A4

R1 Concepts E- Line Series Brake Rotor with Ceramic Brake Pads Hdw Fits Audi TTS

R1 Concepts

R1 Concepts E- Line Series Brake Rotor with Ceramic Brake Pads Hdw Fits Audi TTS

R1 Concepts E- Line Series Brake Rotor with Ceramic Brake Pads Hdw Fits Audi A4

R1 Concepts

R1 Concepts E- Line Series Brake Rotor with Ceramic Brake Pads Hdw Fits Audi A4

R

R1 Concepts

R1 Concepts Brake Rotor Drilled and Slotted Silver Fits Audi A4

R

R1 Concepts

R1 E- Line Series Brake Rotor - D/S - Black w/ Ceramic Pads Hdw

R1 E- Line Series Brake Rotor - D/S - Black w/ Ceramic Pads Hdw Fits Audi A4

R1 Concepts

R1 E- Line Series Brake Rotor - D/S - Black w/ Ceramic Pads Hdw Fits Audi A4

R

R1 Concepts

R1 Concepts Disc Brake Kit Fits Audi A4

R1 11-17 Audi Q5 Front & Rear Drilled & Slotted Carbon Coated Brake Rotor Set

R1 Concepts

R1 11-17 Audi Q5 Front & Rear Drilled & Slotted Carbon Coated Brake Rotor Set

R

R1 Concepts

R1 Concepts Disc Brake Kit Fits Audi A4

R1 E- Line Series Brake Rotor - D/S - Black w/ Ceramic Pads Hdw

R1 Concepts

R1 E- Line Series Brake Rotor - D/S - Black w/ Ceramic Pads Hdw

R1 Concepts Brake Rotors - Slotted - Black w/ Semi-Met Pads Hdw Fits Audi A4

R1 Concepts

R1 Concepts Brake Rotors - Slotted - Black w/ Semi-Met Pads Hdw Fits Audi A4

R1 17-19 Audi A4 Quattro Front Left Drilled & Slotted Silver Brake Rotor

R1 Concepts

R1 17-19 Audi A4 Quattro Front Left Drilled & Slotted Silver Brake Rotor

R1 00-08 Audi A4 Quattro Rear Left Slotted Black Brake Rotor

R1 Concepts

R1 00-08 Audi A4 Quattro Rear Left Slotted Black Brake Rotor

R1 Concepts Brake Rotors - Carbon Coated w/ Optimum Oe Pads Hdw Fits Audi A4

R1 Concepts

R1 Concepts Brake Rotors - Carbon Coated w/ Optimum Oe Pads Hdw Fits Audi A4

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R1 Concepts

R1 Concepts Brake Rotor- Carbon D/S Fits Audi A4

R1 92-08 Audi A4 (USA/Canada) Front Left Drilled & Slotted Silver Brake Rotor

R1 Concepts

R1 92-08 Audi A4 (USA/Canada) Front Left Drilled & Slotted Silver Brake Rotor

R1 Concepts Brake Rotors - Carbon Coated w/ Optimum Oe Pads Hdw Fits Audi A4

R1 Concepts

R1 Concepts Brake Rotors - Carbon Coated w/ Optimum Oe Pads Hdw Fits Audi A4

R

R1 Concepts

R1 Concepts Brake Rotors - Carbon Coated w/ Optimum Oe Pads Hdw Fits Audi A4

R1 Concepts Brake Rotors - Carbon Coated w/ Optimum Oe Pads Hdw Fits Audi A4

R1 Concepts

R1 Concepts Brake Rotors - Carbon Coated w/ Optimum Oe Pads Hdw Fits Audi A4

R

R1 Concepts

R1 Concepts E- Line Series Brake Rotor with Ceramic Brake Pads Hdw

19 IN REPLICA WHEEL AU29 FITS AUDI S4 RIM 19X8.5 MACHINED WHEEL

4Play OE Wheels

19 IN REPLICA WHEEL AU29 FITS AUDI S4 RIM 19X8.5 MACHINED WHEEL

R1 Concepts E- Line Series Brake Rotor with Ceramic Brake Pads Hdw Fits Audi A4

R1 Concepts

R1 Concepts E- Line Series Brake Rotor with Ceramic Brake Pads Hdw Fits Audi A4

R

R1 Concepts

R1 Concepts Brake Rotor- Blank with Optimum Oe Pads Hdw Fits Audi A4

OIL SEAL

NATIONAL

OIL SEAL

R1 Concepts Brake Rotor- Slotted - Black

R1 Concepts

R1 Concepts Brake Rotor- Slotted - Black

R

R1 Concepts

R1 12-17 Audi A4 allroad Front Drilled & Slotted Silver Brake Rotor Set w/Ceramic Pads and Hardware

R

R1 Concepts

R1 Concepts Brake Rotor- Carbon D/S Fits Audi A4

R

R1 Concepts

R1 Concepts Brake Rotor- Carbon D/S Fits Audi A4

R1 Concepts Brake Rotor- Slotted - Black

R1 Concepts

R1 Concepts Brake Rotor- Slotted - Black

R

R1 Concepts

R1 Concepts Brake Rotor- Blank with Optimum Oe Pads Hdw Fits Audi A6

R1 2008-2025 Audi A4 (Mexico) Rear Right Drilled & Slotted Black Brake Rotor

R1 Concepts

R1 2008-2025 Audi A4 (Mexico) Rear Right Drilled & Slotted Black Brake Rotor

ELECTRONIC TB

STANDARD IGN

ELECTRONIC TB

R1 00-08 Audi A4 Quattro Rear Right Drilled Black Brake Rotor

R1 Concepts

R1 00-08 Audi A4 Quattro Rear Right Drilled Black Brake Rotor

R1 17-19 Audi A4 Quattro Front Left Drilled & Slotted Black Brake Rotor

R1 Concepts

R1 17-19 Audi A4 Quattro Front Left Drilled & Slotted Black Brake Rotor

R1 E- Line Series Brake Rotor - D/S - Black w/ Ceramic Pads Fits Chevrolet Matiz

R1 Concepts

R1 E- Line Series Brake Rotor - D/S - Black w/ Ceramic Pads Fits Chevrolet Matiz

R1 Concepts Brake Rotor- Carbon D/S Fits Audi A4

R1 Concepts

R1 Concepts Brake Rotor- Carbon D/S Fits Audi A4

R1 Concepts Brake Rotor Drilled and Slotted Silver Fits Audi A4

R1 Concepts

R1 Concepts Brake Rotor Drilled and Slotted Silver Fits Audi A4

R1 2011-2017 Audi A4 Allroad Front Left Drilled & Slotted Black Brake Rotor

R1 Concepts

R1 2011-2017 Audi A4 Allroad Front Left Drilled & Slotted Black Brake Rotor

R1 96-05 Audi A4 Quattro Rear Left Drilled & Slotted Black Brake Rotor

R1 Concepts

R1 96-05 Audi A4 Quattro Rear Left Drilled & Slotted Black Brake Rotor

R1 2011-2017 Audi A4 (USA/Canada) Front Right Drilled & Slotted Black Brake Rotor

R1 Concepts

R1 2011-2017 Audi A4 (USA/Canada) Front Right Drilled & Slotted Black Brake Rotor

AUDI ADJUSTABLE UCA - KIT

Specialty Products Inc.

AUDI ADJUSTABLE UCA - KIT

R

R1 Concepts

R1 Concepts Disc Brake Kit Fits Audi A4

R

R1 Concepts

R1 00-08 Audi A4 Quattro Rear Left Drilled Black Brake Rotor

S

Specialty Products Inc.

AUDI A4 CONTROL ARMS KIT

R

R1 Concepts

R1 00-09 Audi A4 Quattro Rear Left Drilled & Slotted Black Brake Rotor

INTRMTR SWITCH-MISC

STANDARD IGN

INTRMTR SWITCH-MISC

R1 E- Line Series Brake Rotor - D/S - Black w/ Ceramic Pads Hdw Fits Audi A4

R1 Concepts

R1 E- Line Series Brake Rotor - D/S - Black w/ Ceramic Pads Hdw Fits Audi A4

S

Specialty Products Inc.

UCA S AUDI AND VW - KIT

INTERMOTOR MASS AIR FLOW

STANDARD IGN

INTERMOTOR MASS AIR FLOW

R1 98-08 Audi A4 Front Drilled & Slotted Silver Brake Rotor Set w/Euro Ceramic Pads and Hardware

R1 Concepts

R1 98-08 Audi A4 Front Drilled & Slotted Silver Brake Rotor Set w/Euro Ceramic Pads and Hardware

DFC 12-17 Audi Q5 Rear Drilled & Slotted Geoperformance Rotors 5000 Advanced Brake Pads w/Hardware

R1 Concepts

DFC 12-17 Audi Q5 Rear Drilled & Slotted Geoperformance Rotors 5000 Advanced Brake Pads w/Hardware

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