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.

APR Tuning
Intake Filter B8 2.0T (323x128) Fits Audi A4 09-16, A4 allroad 17, A4 Quattro 09-16, A5 Quattro 10-17, allroad 13-16, Q5 11-17 APR

APR Tuning
Intake Filter B6/B7 1.8T/2.0T/3.0L/3.2L/4.2L (263x211) Fits Audi A4 02-09, A4 Quattro 02-09, RS4 07-08, S4 04-09? APR

SPC Performance
SPC Performance Replacement Bushing Kit For Audi Control Arms(81353, 81363, 81373)

Clutch Masters
Clutch Masters 10-17 Audi S5 B8 3.0L Supercharged Clutch Lines

APR Tuning
CENTER CAP 1, METAL, FORGED, GLOSS B
Gates
Gates 20-23 Audi Q5 4-Cyl. 2.0L Electric Assist Serpentine V-Ribbed Belt (E-Start)

APR Tuning
Wheel Lug Bolts Set of 10 40 mm APR

APR Tuning
Ignition Coils Fits Various Audi/Porsche/VW Models Blue APR

APR Tuning
Wheel Lug Bolts Set of 10 45 mm APR

ACCEL
Direct Ignition Coil Supercoil Volkswagen / Audi 1.8L I4 Direct OEM Replacement 15 Percent More Spark Energy Silicone Magnetic Steel Core Yellow Each ACCEL

Gates
Gates 09-17 Volkswagen Tiguan 4-Cyl. 2.0L Water Pump Automotive Timing Belt

Bosch
Bosch Fuel Pressure Regulator (OE 078133534C)

Bosch
Bosch Ignition Trigger Module

Supertech
Supertech Audi 1.8T/2.7T Exhaust Cam Follower 33.5x25.8x15.5mm Stem - Single (D/S Only)

Supertech
Supertech Audi 1.8T Manganese Bronze Intake/Exhaust Valve Guide Oversize OD 11.075mm - Set of 8
Torque Solution
Torque Solution Blow Off Valve Adapter: 2015+ VW/Audi 1.8T / 2.0T

Supertech
Supertech Audi/VW 1.8T AEB Spring Seat Locator - Set of 8

Hella
Hella 2013-2016 Audi S4 Fog Light Right

Hella
Hella 2013-2016 Audi S4 Fog Light Left

PowerStop
Power Stop 14-17 Audi SQ5 Rear Z23 Evo Sport Pad w/Hardware

Supertech
Supertech VW 1.8T AEB / 2.7T APB Sodium Filled Inconel Exhaust Valve - +1mm Oversize - Single

Supertech
Supertech Audi/VW 1.8T 5V Inconel Exhaust Valve - +1mm Oversize - Single (Drop Ship Only)

Stoptech
StopTech Audi Front Stainless Steel Brake Line Kit

Whiteline
Whiteline Plus 97-05 VAG MK4 A4/Type 1J Front Lower Inner Control Arm Bushing Kit -Standard Replacem

K&N Engineering
K&N 01-09 Audi A4/RS4/S4 Drop In Air Filter

KYB
KYB Shocks & Struts Strut Mount Front 09-15 Audi A4/A5

WeatherTech
WeatherTech 2017+ Audi A4 Sedan Front Side Window Deflectors - Dark Smoke

Hella
Hella Optilux H1 100W XB Extreme White Bulbs (Pair)

Hella
Hella Bulb H9 12V 65W Pgj195 T4 Sb

Bilstein
Bilstein 96-99 Audi A4 Quattro B3 OE Replacement Coil Spring - Front

Stoptech
StopTech 09 Audi A4 Sedan / 08-10 A5-S5 Rear Stainless Steel Brake Line Kit

Hella
Hella Bulb 7225 12V 21/4W Baz15D S8 (2)

Hella
Hella H1 12V 55W Hella High Performance Xenon Bulb (Pair)

Advanced Clutch
ACT 1997 Audi A4 Release Bearing

Stoptech
StopTech Audi Rear Stainless Steel Brake Line Kit

AutoMeter
Autometer 96-98 Audi A4 52mm Single Pod (Black)

NGK
NGK 2014 VW Passat COP Ignition Coil

NGK
NGK 1999-98 VW Passat COP Ignition Coil

AEM
AEM Dryflow Air Filter for 07-16 Audi A4 1.8L TFSI
Italian RP
Italian RP - IRPR193

034Motorsport
MOUNT,TRANS,B8 INSERTB8 TRANS

034Motorsport
MOUNT,TRANS,SD,TIPTRANSMISSIO

034Motorsport
DRIVESHAFT SUPPORT,B5 A4-S4 8

034Motorsport
Mount,RR Diff,Insert Set, B8

034Motorsport
SPACER,PHENOLIC,2.7T LARGE2.7

034Motorsport
HOSE,SIL,INLET,B8 BLKTURBO IN

034Motorsport
Shim Kit, Brake Pads, Ti, RS+

034Motorsport
Insert Set, Rr Subfrme, B9 A4

034Motorsport
Ctrl Arm Kit B8 Full Trck Late

034Motorsport
Ctrl Arm Kit, Up, B5 B6 B7

034Motorsport
BUSHING,SUBFRAME FRONT B5SUBF

034Motorsport
Hardware Kit, B8 LWR CA M14

034Motorsport
WSK, Ball, OEM

034Motorsport
Brake Pad, SS, Rear, B8 S4

034Motorsport
Ign Coil, 8pk, Red, MQB Style

034Motorsport
Rebuild Kit, End Links, 8J/8P/

034Motorsport
Mount,RR Diff Insert B6-B7Mou

034Motorsport
BRACKET,SNUB MOUNT A4 LATESNU

034Motorsport
MOUNT,TRANS,SD,B6-B7 6 SPEEDT

034Motorsport
BRACKET,SNUB,B6 1.8T STREETSN
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