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.

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.

Free Shipping
30-Day Returns
BMC air filter

BMC

BMC 07-12 Audi A4 (8K/B8) 1.8 TFSI Replacement Panel Air Filter

SHW Performance auto part

SHW Performance

SHW 09-11 Audi A4 2.0L Front Smooth Monobloc Brake Rotor (8K0615301A)

Victor Reinz auto part

Victor Reinz

MAHLE Original Audi A4 01-97 Valve Cover Set

Victor Reinz auto part

Victor Reinz

MAHLE Original Audi A4 05-02 Valve Cover Set

Victor Reinz auto part

Victor Reinz

MAHLE Original Audi A3 08-06 Timing Cover Set

MAHLE Original Audi A4 08-06 Valve Cover Set

Victor Reinz

MAHLE Original Audi A4 08-06 Valve Cover Set

SuperPro control arms

SuperPro

SuperPro 2002 Audi A4 Base Front Lower Shock Absorber-to-Lower Control Arm Mount Bushing Kit

Torque Solution silver auto part

Torque Solution

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

Victor Reinz auto part

Victor Reinz

MAHLE Original Audi 90 95-93 Cylinder Head Gasket

Torque Solution auto part

Torque Solution

Torque Solution Billet Shift Knob (Gold) Vokswagen/Audi Manual Transmission

Victor Reinz auto part

Victor Reinz

MAHLE Original Audi A4 06-97 Valve Cover Set

3D MAXpider auto part

3D MAXpider

3D MAXpider 2017-2019 Audi A4/S4/A5 Sportback/S5 Sportback Kagu 2nd Row Floormats - Tan

3D MAXpider auto part

3D MAXpider

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

Victor Reinz auto part

Victor Reinz

MAHLE Original Volvo 740 89 Eng Valve Steam Seat Set

3D MAXpider auto part

3D MAXpider

3D MAXpider 2017-2019 Audi A4/S4/A5 Sportback/S5 Sportback Kagu 2nd Row Floormats - Gray

WeatherTech black auto part

WeatherTech

WeatherTech 09-13 Audi A4/A5 Front Rubber Mats - Black

Hella auto part

Hella

Hella Bulb H8 12V 35W PGJ19-1 T4

KYB shock absorber

KYB

KYB Shocks & Struts Excel-G Rear AUDI A4 1999-01

Rhino-Rack USA black roof rack

Rhino-Rack USA

Rhino-Rack 01-05 Audi A4/S4/RS4 B6/7 4 Door Sedan Vortex ROC25 Flush 2 Bar Roof Rack - Black

Thule silver roof rack

Thule

Thule WingBar Evo 135 Load Bars for Evo Roof Rack System (2 Pack / 53in.) - Silver

King Engine Bearings auto part

King Engine Bearings

King Engine Bearings Audi/VW 83-03 1.6L/1.8L/2.0L Performance Rod Bearing Set - Size STDX

Clevite auto part

Clevite

Clevite VW 2792cc AHA V6 Con Rod Bearing Set

Hella auto part

Hella

Hella Bulb 6411 12V 10W Sv858 T325 10X41(2)

WeatherTech auto part

WeatherTech

WeatherTech 2017+ Audi A4 (Sedan) Rear FloorLiner - Grey

EBC auto part

EBC

EBC 09-11 Audi A4 2.0 Turbo Ultimax2 Rear Brake Pads

Thule auto part

Thule

Thule WingBar Edge 95cm Roof Bar (1-Pack)

Bilstein shock absorber

Bilstein

Bilstein B4 2005 Audi A4 Quattro Base Front Twintube Shock Absorber

Mishimoto auto part

Mishimoto

Mishimoto 99-05 VW GTI 1.8T 180 Degree Racing Thermostat

SPYDER black headlights

SPYDER

Spyder Audi A4 09-12 Projector Headlights Halogen Model Only - DRL LED Black PRO-YD-AA408-DRL-BK

Thule black roof rack

Thule

Thule AirScreen XT Roof Rack Wind Fairing XL - 52in. (Black)

Hella auto part

Hella

Hella Bulb H1 12V 55W P145S T25 +50 (2)

WeatherTech auto part

WeatherTech

WeatherTech 2019+ Audi A4/S4/A5/S5 Rear (2nd Row) FloorLiners - Cocoa (Sedan & Sportback)

Hella auto part

Hella

Hella H9 12V 65W PGJ19-5 HP 2.0 Halogen Bulbs

WeatherTech black auto part

WeatherTech

WeatherTech 2019+ Audi A4/S4/A5/S5 Rear (2nd Row) FloorLiners - Black (Sedan & Sportback)

KYB shock absorber

KYB

KYB Shocks & Struts Strut Mount Rear Audi A4 (inc Quattro) 09-12/ Audi S4 (Exc Cabriolet) 10-12

Clevite auto part

Clevite

Clevite VW 1780cc Turbo AEB 1998-02 VW 1896cc Turbo Diesel 1993-02 Main Bearing Set

Stoptech auto part

Stoptech

Street Brake Pads w/Shims and Hardware

WeatherTech auto part

WeatherTech

WeatherTech 09-13 Audi A4/A5 Front Rubber Mats - Tan

Stoptech auto part

Stoptech

StopTech Performance 96-2/97 Audi A4 / 96-01 A4 Quattro / 95-98 A6 Rear Brake Pads

Bilstein shock absorber

Bilstein

Bilstein B4 OE Replacement 02-06 Audi A4/A4 Quattro Rear Twintube Shock Absorber

Hella auto part

Hella

Hella Bulb 2821 12V 3W W2.1x9.5d T3.25 E1 SB

WeatherTech auto part

WeatherTech

FloorMat

WeatherTech auto part

WeatherTech

WeatherTech 07-15 Audi Q7 / 07-14 Cadillac Escalade / 09-14 Ford F-150 Tan Rear Seat Protector

WeatherTech auto part

WeatherTech

WeatherTech 03-08 Audi A4/S4/RS4 TechShade

WeatherTech auto part

WeatherTech

WeatherTech 97-17 Ford F550 Tan Bucket Seat Protector

WeatherTech auto part

WeatherTech

WeatherTech 2017+ Audi A4 / Audi A4 Allroad Lampguards

Hella auto part

Hella

Hella Bulb H21W 12V 21W Bay9S T275

Mishimoto auto part

Mishimoto

Mishimoto Volkswagen Golf/Jetta/Passat VR6 Racing Thermostat

WeatherTech auto part

WeatherTech

WeatherTech Universal Seat Protector - Cocoa

Hella auto part

Hella

Hella High Wattage Bulb H7 12V 100W PX26d T4.6

WeatherTech black auto part

WeatherTech

WeatherTech 09-13 Audi A4/S4/RS4 Cargo Liners - Black

WeatherTech black auto part

WeatherTech

WeatherTech 2019+ Audi A4 Sedan Rear FloorLiner - Black

WeatherTech auto part

WeatherTech

WeatherTech 09-13 Audi A4/S4/RS4 Cargo Liners - Grey

King Engine Bearings auto part

King Engine Bearings

King Engine Bearings Volkswagen AMB/BYK/BBX Silicon Bi-Metal Aluminum Main Bearing Set - Size STD

WeatherTech auto part

WeatherTech

WeatherTech 2008-2015 Audi A5/S5/RS5 Front Rubber Mats - Cocoa

Bilstein springs

Bilstein

Bilstein 02-08 Audi A4 Quattro B3 OE Replacement (Air) Coil Spring - Rear

DBA auto part

DBA

DBA 2016+ Audi A4 SP Performance Front Brake Pads

Hella auto part

Hella

Hella Xenon D1S Bulb PK32d-2 85V 35W 5000k

WeatherTech auto part

WeatherTech

WeatherTech 59.75in W x 19in Depth x 25in H Seat Protector - Cocoa

Hella auto part

Hella

Hella Bulb 7528 12V 21/5W Bay15D S8 Sb

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