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?

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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.

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Clevite auto part

Clevite

Clevite VW 1.8L / 2.0L 4 Cyl Performance Con Rod Bearing Set

Thule black auto part

Thule

Thule AeroBlade Edge L Load Bar for Raised Rails (Single Bar) - Black

Hella auto part

Hella

Hella Bulb H11 12V 55W Pgj192 T4 (2)

Bilstein shock absorber

Bilstein

Bilstein B4 1998 Audi A4 Avant Rear Shock Absorber

K&N Engineering air filter

K&N Engineering

K&N 15-18 Audi A4 L4-1.4L 18-20 A5/RS5 2021 Q5 F/I Drop In Replacement Air Filter

Hella auto part

Hella

Hella Bulb 7507 12V 21W Bau15S S8 Namber (2)

Rhino-Rack USA roof rack

Rhino-Rack USA

Rhino-Rack 2500 Fitting Kit - 4 Pads/4 Clamps

Hella auto part

Hella

Hella Xenon D2S Bulb P32-2d 85V 35W 4300k

Hella auto part

Hella

Hella Bulb H1 12V 55W P145S T25 +50

SPYDER headlights

SPYDER

Spyder Audi A4 06-08 Projector Headlights Halogen Only - Light Tube DRL Blk PRO-YD-AA405-LTDRL-G2-BK

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 STD

SPYDER black headlights

SPYDER

Spyder Audi A4 06-08 Projector Headlights Halogen Model Only - DRL Black PRO-YD-AA405-DRL-BK

Hella auto part

Hella

Hella Optilux H8 12V/55W XB Xenon White Bulb (pair)

Rhino-Rack USA auto part

Rhino-Rack USA

RHINO WIND FAIRING #2 38 INCH/965 MM

Hella auto part

Hella

Hella Bulb H1 12V 55W P145S T25 Sb

WeatherTech auto part

WeatherTech

WeatherTech 2009-2016 Audi A4 Rear FloorLiner - Cocoa

Clevite auto part

Clevite

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

Thule black roof rack

Thule

Thule Rapid Podium Foot Pack - For Vehicles w/Fixed Points/Flush Railing/T-Track (4 Pack) - Black

Thule auto part

Thule

Thule Edge Clamp Foot Pack

Thule roof rack

Thule

Thule Roof Rack Fit Kit 6019 (Flush Rail)

Hella auto part

Hella

Hella Bulb 2723 12V 23W W2X46D T15

Hella auto part

Hella

Hella Bulb 921 12V 16W W2.1X9.5d T5

Stoptech auto part

Stoptech

Street Brake Pads w/Shims and Hardware

Hella blue auto part

Hella

Hella Optilux H7 100W XB Extreme Blue Bulbs (Pair)

Hella auto part

Hella

Hella Bulb 7528 12V 21/5W Bay15D S8 (2)

WeatherTech auto part

WeatherTech

WeatherTech 09-13 Audi A4/S4/RS4 Rear FloorLiner - Tan

Hella auto part

Hella

Hella Bulb H8 12V 35W Pgj191 T4 (2)

Hella auto part

Hella

Hella Bulb 1157 12V 27/8W BAY15d S8

Bilstein springs

Bilstein

Bilstein B3 02-06 Audi A4/A4 Quattro Replacement Rear Coil Spring

WeatherTech auto part

WeatherTech

WeatherTech 96-01 Audi A4 TechShade

WeatherTech auto part

WeatherTech

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

Hella auto part

Hella

Hella Bulb 7506 12V 21W BA15s S8

WeatherTech auto part

WeatherTech

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

K&N Engineering cabin air filter

K&N Engineering

K&N 13-16 Audi SQ5 3.0L V6 Cabin Air Filter

Rhino-Rack USA black roof rack

Rhino-Rack USA

Rhino-Rack Heavy Duty Bar - 44in - Single - Black

Hella blue auto part

Hella

Hella Optilux XB Extreme Type H11 12V 80W Blue Bulbs - Pair

Hella auto part

Hella

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

Stoptech auto part

Stoptech

StopTech Performance Brake Pads

Bilstein shock absorber

Bilstein

Bilstein B4 1996 Audi A4 Base Front Twintube Shock Absorber

Hella auto part

Hella

Hella H11 12V 55W PGJ19-2 T4 +50 Performance Halogen Bulb - Pair

Stoptech auto part

Stoptech

StopTech Street Select 08-17 Audi A5 Front Brake Pads

SPYDER black headlights

SPYDER

Spyder 13-16 Audi A4/S4 Halogen Model Only High-Power LED Headlights - Black PRO-YD-AA413HALAP-BK

Hella auto part

Hella

Hella Bulb H6W 12V 6W BAX9s T2.75

Hella auto part

Hella

Hella Bulb H7 12V 70W PX26d T4.625

Clevite auto part

Clevite

Clevite VW 1.8L / 2.0L 4 Cyl Performance Con Rod Bearing Set

Hella auto part

Hella

Hella Bulb H7 12V 55W Px26D T4625 (2)

Thule black roof rack

Thule

Thule Passage 2 - Hanging Strap-Style Trunk Bike Rack (Up to 2 Bikes) - Black

MGP red auto part

MGP

Set Of 4 Caliper Covers Engraved Front And Rear MGP Red Finish Silver Characters 2009-2017 Audi A6 MGP Caliper Covers

Bilstein springs

Bilstein

Bilstein B3 OE Replacement 96-01 Audi A4/A4 Quattro Front Coil Spring

Stoptech auto part

Stoptech

StopTech Street Select Brake Pads - Rear

SPYDER headlights

SPYDER

Spyder Audi A4 09-12 Projector Headlights Xenon/HID Model Only - DRL LED Blk PRO-YD-AA408-HID-DRL-BK

WeatherTech auto part

WeatherTech

WeatherTech 09-13 Audi A4/S4/RS4 Rear FloorLiner - Grey

Thule black roof rack

Thule

Thule AirScreen XT Roof Rack Wind Fairing S - 32in. (Black)

SPYDER black headlights

SPYDER

Spyder 13-16 Audi A4/S4 HID Model Only Projector Headlights - Black PRO-YD-AA413HIDSI-BK

Thule silver auto part

Thule

Thule AeroBlade Edge L Load Bar for Raised Rails (Single Bar) - Silver

Hella auto part

Hella

Hella Bulb 921 12V 16W W21X95D T5 (2)

WeatherTech black auto part

WeatherTech

WeatherTech 2017+ Audi A4 Sedan Rear FloorLiner - Black

Hella auto part

Hella

Hella Bulb 7506 12V 21W Ba15S S8 (2)

S

SPYDER

Spyder Audi A4 02-05 LED Tail Lights Red Clear ALT-YD-AA402-LED-RC

WeatherTech auto part

WeatherTech

WeatherTech 09-15 Audi A4 / S4 / RS4 TechShade

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