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 exhaust Parts

238 parts available

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

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B

BRE EXHAUST

EXHAUST KIT 02-05 AUDI A4 QUATTRO

B

BRE EXHAUST

DIRECT-FIT RESONATOR - 05-09 AUDI A

DIRECTFIT EXHAUST SYSTEM 0203 AUDI A4 QUATRO 1.8L

BRExhaust

DIRECTFIT EXHAUST SYSTEM 0203 AUDI A4 QUATRO 1.8L

EXHAUST KIT 05-09 AUDI A4 2.0L

BRE EXHAUST

EXHAUST KIT 05-09 AUDI A4 2.0L

FRONT PIPE KIT - 98-05 PASSAT 1.8L

BRE EXHAUST

FRONT PIPE KIT - 98-05 PASSAT 1.8L

EXHAUST KIT - 97-01 AUDI A4 QUATTRO

BRE EXHAUST

EXHAUST KIT - 97-01 AUDI A4 QUATTRO

B

BRE EXHAUST

DIRECT-FIT PIPE - 97-01 AUDI A4 QUA

FRONT PIPE KIT - 02-05 A4 QUATTRO,

BRE EXHAUST

FRONT PIPE KIT - 02-05 A4 QUATTRO,

DIRECT-FIT PIPE - 05-08 AUDI A4 QUA

BRE EXHAUST

DIRECT-FIT PIPE - 05-08 AUDI A4 QUA

DIRECTFIT EXHAUST SYSTEM 0205 AUDI A4 QUATTRO 1.8L

BRExhaust

DIRECTFIT EXHAUST SYSTEM 0205 AUDI A4 QUATTRO 1.8L

FRONT PIPE KIT - 02-05 A4 QUATTRO,

BRE EXHAUST

FRONT PIPE KIT - 02-05 A4 QUATTRO,

FRONT PIPE KIT - 05-08 A4 QUATTRO 2

BRE EXHAUST

FRONT PIPE KIT - 05-08 A4 QUATTRO 2

FRONT PIPE KIT - 05-08 A4 QUATTRO 2

BRE EXHAUST

FRONT PIPE KIT - 05-08 A4 QUATTRO 2

B

BRE EXHAUST

DIRECT-FIT EXHAUST SYSTEM REPLACEME

0916 AUDI A4 DIRECTFIT EXHAUST SYSTEM

BRExhaust

0916 AUDI A4 DIRECTFIT EXHAUST SYSTEM

DIRECTFIT EXHAUST SYSTEM 9801 AUDI A4 QUATTRO 1.8L

BRExhaust

DIRECTFIT EXHAUST SYSTEM 9801 AUDI A4 QUATTRO 1.8L

Walker Exhaust muffler

Walker Exhaust

MUFFLER ASSEMBLY - QUIET-

Walker Exhaust auto part

Walker Exhaust

RESONATOR ASSEMBLY - IMPO

Walker Exhaust auto part

Walker Exhaust

CONVERTER- DF- CARB- CALC

Walker Exhaust auto part

Walker Exhaust

CONVERTER- DF- EPA- ULTRA

W

Walker Exhaust

RESONATOR ASSEMBLY - IMPO

AP Exhaust Products muffler

AP Exhaust Products

MUFFLER REAR ANSA OER

A

AP Exhaust Products

MUFFLER CENTER ANSA OER

A

AP Exhaust Products

MUFFLER REAR ANSA OER

A

AP Exhaust Products

MUFFLER CENTER ANSA OER

A

AP Exhaust Products

MUFFLER REAR ANSA OER

A

AP Exhaust Products

EXHAUST PIPE FRONT ANSA OER

AP Exhaust Products auto part

AP Exhaust Products

AUDI A4 QUATTRO OBDII CATALYTIC CONVERTER DIRECT FIT

A

AP Exhaust Products

MUFFLER REAR ANSA OER

AP Exhaust Products muffler

AP Exhaust Products

MUFFLER REAR ANSA OER

A

AP Exhaust Products

MUFFLER CENTER ANSA OER

AP Exhaust Products exhaust

AP Exhaust Products

9601 A4 2.8L PREBENT EXHAUST PIPE

AP Exhaust Products muffler

AP Exhaust Products

MUFFLER REAR ANSA OER

A

AP Exhaust Products

EXHAUST PIPE FRONT ANSA OER

AP Exhaust Products muffler

AP Exhaust Products

MUFFLER REAR ANSA OER

A

AP Exhaust Products

CATALYTIC CONVERTER UNIVERSAL OBDII CALIFORNIA STD OVAL ANGLED

A

AP Exhaust Products

CATALYTIC CONVERTER UNIVERSAL OBDII CALIFORNIA STD ROUND O2

W

Walker Exhaust

MUFFLER ASSEMBLY - QUIET-

W

Walker Exhaust

Catalytic Converter: Variuos Makes and Models; direct fit

FLEX PIPE VW PASSAT

Walker Exhaust

FLEX PIPE VW PASSAT

Magnaflow auto part

Magnaflow

CONV DF 2002 - 2004 AUDI A4 QUATTRO

Borla black auto part

Borla

A4 QUATTRO 1719 2.0L i4 AT/MT AWD 4DR 2.00/2.75/3.00IN STYPE BLACK CHROME TIP

Magnaflow auto part

Magnaflow

CONV DF 2009 AUDI A4 QUATTRO 3.2L

C

CORSA Performance

Exhaust Downpipe 3.0 Inch 09-14 Audi A4 A5 B8 2.0T

Magnaflow auto part

Magnaflow

Direct-Fit Pipe - 02-03 Audi A4 Quattro 1.8L

Magnaflow auto part

Magnaflow

Direct-Fit Pipe - 05-08 Audi A4 Quattro 2.0L

M

Magnaflow

Direct-Fit Resonator - 05-09 Audi A4 Quattro 2.0L

SENSOR EXHAUST GAS TEMPERATURE

Hella

SENSOR EXHAUST GAS TEMPERATURE

B

Borla

A4 QUATTRO 1719 2.0L i4 AT/MT AWD 4DR 2.00/2.75/3.00IN STYPE

Borla auto part

Borla

A4 QUATTRO AVANT/ALLROAD 1719 2.0L i4 AT/MT AWD 4DR STYPE STAINLESS BRUSHED TIP

Magnaflow auto part

Magnaflow

CONV DF 2001 MAZDA PROTEGE 1.6L

M

Magnaflow

DF CONVERTER

Magnaflow auto part

Magnaflow

Direct-Fit Pipe - 98-05 A4 Passat 1.8L

M

Magnaflow

Direct-Fit Pipe - 02-05 Audi A4 Quattro 1.8L

Borla auto part

Borla

A4 QUATTRO 1719 2.0L i4 AT/MT 4DR 2.00/2.75/3.00IN STYPE STAINLESS BRUSHED TIP

Borla black auto part

Borla

A4 QUATTRO AVANT/ALLROAD 1719 2.0L i4 AT/MT AWD 4DR STYPE BLACK CHROME TIP

M

Magnaflow

Direct-Fit Pipe - 04-05 Audi A4 Quattro 1.8L

M

Magnaflow

Direct-Fit Pipe - 04-16 Highlander RX330 RX350 Sienna

M

Magnaflow

Direct-Fit Pipe - 97-05 A4 Passat 1.8L

SENSOR EXHAUST GAS TEMPERATURE

Hella

SENSOR EXHAUST GAS TEMPERATURE

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