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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Audi A4 Category:engines and components Parts

763 parts available

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

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Ferrea Racing titanium springs

Ferrea Racing

Ferrea VW 2.0T FSI Single Spring 7 Deg Pro CNC Titanium Retainer - Set of 16

Cloyes Gear & Products auto part

Cloyes Gear & Products

ENGINE TIMING CHAIN KIT

Cloyes Gear & Products auto part

Cloyes Gear & Products

ENGINE TIMING CHAIN KIT

Cloyes Gear & Products auto part

Cloyes Gear & Products

ENGINE TIMING CHAIN KIT

Ferrea Racing springs

Ferrea Racing

Ferrea Audi 2.0T FSI 16V Single Valve Spring - Set of 16

Cloyes Gear & Products auto part

Cloyes Gear & Products

ENGINE TIMING CHAIN KIT

JE Pistons auto part

JE Pistons

VW TS1 2.0T TSI 22MM PIN 83.5MM 10

JE Pistons auto part

JE Pistons

VW TS1 2.0 23MM PIN 82.5MM 9.6

J

JE Pistons

VW 2.0T FSI 20MM PIN 83MM 9.25 FSR

J

JE Pistons

VOLKSWAGEN 1.8T 5V -7CC DISH 81.00M

JE Pistons auto part

JE Pistons

VW 1.8T 20V 20MM PIN 82.5MM 8.5 FSR

JE Pistons auto part

JE Pistons

VW 1.8T 20V 20MM PIN 82.5MM 8.5 FSR

JE Pistons auto part

JE Pistons

VW 1.8T 20V 20MM PIN 82MM 8.5 FSR

J

JE Pistons

VW 2.0T FSI 83.5 KIT

JE Pistons auto part

JE Pistons

VW 2.0T FSI 82.5 KIT

OIL PAN

Dorman

OIL PAN

OIL PAN

Dorman

OIL PAN

JE Pistons auto part

JE Pistons

VW 2.0T TSI ULTRA SERIES 23MM PIN

JE Pistons auto part

JE Pistons

VW 2.0T TSI 23MM PIN 83.5MM 10.0 FS

J

JE Pistons

VW 2.0T TSI 23MM PIN 83.5MM 10.0

JE Pistons auto part

JE Pistons

VW TS1 2.0L TURBO 23MM PIN

JE Pistons auto part

JE Pistons

VW 2.0T TSI ULTRA SERIES 23MM PIN

JE Pistons auto part

JE Pistons

VW 2.0T TSI ULTRA SERIES 21MM PIN

J

JE Pistons

VW 1.8T ULTRA SERIES

EN VAR TIME SOLENOID

NGK

EN VAR TIME SOLENOID

M

Mahle

Head Set AUDI 2976CC 3.0L AVK BGN 2002-2006

J

JE Pistons

FORD 302 BLOWER/TURBO -18CC DISH

G

Gates

Gates 4 Components (1 Belt 1 Tensioner 1 Idler 1 Water Pump) - Includes Gasket

G

Gates

Gates Hydraulic Type - Steel Smooth/Backside (65 mm x 10 mm x 33 mm) - W/Bushing Bolt Washer

G

Gates

Gates Hydraulic Cylinder Type - No Pulley Attached

G

Gates

Gates Steel Smooth/Backside (28 mm x 9 mm x 29 mm)

JE Pistons auto part

JE Pistons

VW TS1 2.0 TURBO KIT

JE Pistons auto part

JE Pistons

SRP PRO 2618- SBF-4.135/1.090 CD/-1

SENSOR ENGINE OIL LEVEL FOR VW AUDI

Hella

SENSOR ENGINE OIL LEVEL FOR VW AUDI

NTK VV0059 VVT SOLENOID

NGK

NTK VV0059 VVT SOLENOID

J

JE Pistons

VW 1.8T 20V 8.5 KIT

JE Pistons auto part

JE Pistons

VW 2.0T FSI ULTRA SERIES 20MM PIN

Carrillo auto part

Carrillo

Carillo Audi 2.5L TFSI (2017-19) 23mm pin Std Bore 82.5mm 10:1 - SC7635-SINGLE

C

Clevite

TURBOCHARGER-NEW

G

Gates

Gates K06 13/16in x 73 7/8in

OIL PAN

Dorman

OIL PAN

J

JE Pistons

VW 2.0T FSI 82.5 KIT

JE Pistons auto part

JE Pistons

VW 1.8T 20V KIT 82.5

Piston With Rings Audi 2.8L AFC O S 0.25MM R C 0.30MM

Mahle

Piston With Rings Audi 2.8L AFC O S 0.25MM R C 0.30MM

J

JE Pistons

VW 1.8T 20V KIT 81.0

G

Gates

Gates 3 Components (1 Belt 1 Tensioner 1 Idler)

Gates auto part

Gates

Gates Hydraulic Cylinder Type - No Pulley Attached

J

JE Pistons

AUDI/VW EA113 -10.5CC DISH 1.1654 X

C

Clevite

PISTON WITH RINGS

JE Pistons auto part

JE Pistons

VW 1.8T ULTRA SERIES

J

JE Pistons

VOLKSWAGEN 1.8T 5V -7CC DISH 82.00M

J

JE Pistons

VLKSWGN 1.8T 5V DISHED -7CC 82MM

C

Carrillo

BH57-1075-040 GEN3 DODGE HEMI 3.957 BORE 4.080 STROKE 6.125 ROD .866 PIN. 03-08 5.7L HEAD 2.6CC 10.75:1 COMP.

JE Pistons auto part

JE Pistons

FORD -5CC FLAT TOP 1.230 X 4.020

D

Dorman

TIMING BELT ADJUSTER

Dorman auto part

Dorman

TIMING BELT ADJUSTER

JE Pistons auto part

JE Pistons

VW 1.8T 20V 20MM PIN 81.5MM 9.25FSR

J

JE Pistons

VW 20V DISHED -14CC 1.1614 X 3.2087

G

Gates

Gates Heavy-Duty Engine Water Pump

N

NGK

ENGINE CAMSHAFT POSITION SENSOR

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