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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30-Day Returns
Magnaflow auto part

Magnaflow

DF CONVERTER

Magnaflow auto part

Magnaflow

CONV DF 2002 - 2004 AUDI A4 QUATTRO

Magnaflow exhaust

Magnaflow

BRE Exhaust 04-05 Audi A4 Quatro 1.8L Exhaust Kit

Magnaflow exhaust

Magnaflow

BRE Exhaust 02-05 A4 Quattro A4 1.8L Front Pipe Kit

Fel-Pro exhaust

Fel-Pro

Fel-Pro Audi Q5 61845 Exhaust Pipe Flange Gasket

Magnaflow exhaust

Magnaflow

BRE Exhaust 05-08 A4 Quattro 2.0L Front Pipe Kit

Fel-Pro auto part

Fel-Pro

Fel-Pro Audi Q5 61924 Catalytic Converter Gasket

Magnaflow exhaust

Magnaflow

BRE Exhaust 05-08 A4 Quattro 2.0L Front Pipe Kit

Magnaflow exhaust

Magnaflow

BRE Exhaust 02-05 A4 Quattro A4 1.8L Front Pipe Kit

Magnaflow exhaust

Magnaflow

BRE Exhaust 97-01 A4 Quattro 1.8L Front Pipe Kit

Magnaflow exhaust

Magnaflow

BRE Exhaust 98-05 Passat 1.8L Front Pipe Kit

Magnaflow exhaust

Magnaflow

BRE Exhaust 05-08 A4 Quattro 2.0L Front Pipe Kit

Magnaflow exhaust

Magnaflow

BRE Exhaust 02-05 A4 Quattro A4 1.8L Front Pipe Kit

Magnaflow exhaust

Magnaflow

MagnaFlow BRE Exhaust Kit 09-16 Audi A4 Quattro 2L

Magnaflow exhaust

Magnaflow

MagnaFlow BRE Exhaust Kit 02-05 Audi A4 Quattro 1.8L

Magnaflow exhaust

Magnaflow

MagnaFlow BRE Exhaust Kit 05-09 Audi A4 2.0L

Fel-Pro exhaust

Fel-Pro

Fel-Pro Volkswagen Passat 61782 Exhaust Pipe Flange Gasket

Fel-Pro exhaust

Fel-Pro

Fel-Pro Volkswagen Jetta 61458 Exhaust Pipe Flange Gasket

Fel-Pro exhaust

Fel-Pro

Fel-Pro Volkswagen Passat MS 96882 Exhaust Manifold Gasket Set

Fel-Pro exhaust

Fel-Pro

Fel-Pro Volkswagen Tiguan MS 96784 Exhaust Manifold Gasket Set

Fel-Pro exhaust

Fel-Pro

Fel-Pro Volkswagen Passat 61198 Exhaust Pipe Flange Gasket

Fel-Pro exhaust

Fel-Pro

Fel-Pro Volkswagen Passat 61197 Exhaust Pipe Flange Gasket

Fel-Pro exhaust

Fel-Pro

Fel-Pro Audi TT Quattro 61171 Exhaust Pipe Flange Gasket

R

Remus

Remus 2008 Audi A4 B8 1.8L/2.0L TDI Axle Back Exhaust w/Carbon Tail Pipe Set

R

Remus

Remus 2008 Audi A4 B8 1.8L/2.0L TDI Axle Back Exhaust w/Polished Tail Pipe Set

Magnaflow auto part

Magnaflow

MagnaFlow 2018-2020 Audi Q5 OEM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter

Borla cat-back exhaust

Borla

Borla 17-19 A4 Quattro Avant/Allroad 2.0L i4 AT/MT Awd 4DR S-Type Catback

Magnaflow auto part

Magnaflow

MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 448304

Magnaflow auto part

Magnaflow

MagnaFlow 2006-2008 Audi A4 Quattro California Grade CARB Compliant Direct-Fit Catalytic Converter

Magnaflow auto part

Magnaflow

MagnaFlow 2006-2008 Audi A4 Quattro California Grade CARB Compliant Direct-Fit Catalytic Converter

Magnaflow auto part

Magnaflow

MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 4481659

Magnaflow auto part

Magnaflow

MagnaFlow 2006-2009 Audi A4 Quattro California Grade CARB Compliant Direct-Fit Catalytic Converter

Magnaflow auto part

Magnaflow

MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 4561062

Magnaflow auto part

Magnaflow

MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 4481355

Magnaflow auto part

Magnaflow

MagnaFlow 2006-2009 Audi A4 Quattro California Grade CARB Compliant Direct-Fit Catalytic Converter

Magnaflow auto part

Magnaflow

MagnaFlow 2005-2006 Audi A4 Quattro California Grade CARB Compliant Direct-Fit Catalytic Converter

AWE Tuning black exhaust

AWE Tuning

AWE Tuning Audi B8 A4 Touring Edition Exhaust - Single Side Diamond Black Tips

AWE Tuning black exhaust

AWE Tuning

AWE Tuning Audi B7 A4 3.2L Track Edition Quad Tip Exhaust - Diamond Black Tips

Torque Solution muffler

Torque Solution

Torque Solution 2014 Audi MK3 TT w/ IHI Turbochargers Turbo Muffler Delete

AWE Tuning black exhaust

AWE Tuning

AWE Tuning Audi B7 A4 3.2L Touring Edition Dual Tip Exhaust - Diamond Black Tips

AWE Tuning black exhaust

AWE Tuning

AWE Tuning Audi B7 A4 3.2L Track Edition Dual Tip Exhaust - Diamond Black Tips

Victor Reinz exhaust

Victor Reinz

MAHLE Original Audi TT Quattro 13-12 Exhaust Pipe Gasket

AWE Tuning black exhaust

AWE Tuning

AWE Tuning Audi B8.5 All Road Touring Edition Exhaust - Dual Outlet Diamond Black Tips

AWE Tuning black exhaust

AWE Tuning

AWE Tuning Audi B7 A4 3.2L Touring Edition Quad Tip Exhaust - Diamond Black Tips

AWE Tuning silver exhaust

AWE Tuning

AWE Tuning Audi B8 A4 Touring Edition Exhaust - Quad Tip Polished Silver Tips - Does Not Fit Cabrio

AWE Tuning downpipe

AWE Tuning

AWE Tuning Audi B8 2.0T Resonated Performance Downpipe for A4 / A5

AWE Tuning auto part

AWE Tuning

AWE Tuning Drivetrain Stabilizer (DTS) Mount Package - Polyurethane

AWE Tuning roof rack

AWE Tuning

AWE Tuning B9 A4 A5 Track to Touring Conversion Kit

Remus axle-back exhaust

Remus

Remus Audi A4 B8 Sedan and Avant Axle Back

AWE Tuning silver exhaust

AWE Tuning

AWE Tuning Audi B8 A4 Touring Edition Exhaust - Single Side Polished Silver Tips

AWE Tuning black exhaust

AWE Tuning

AWE Tuning Audi B9 A4 Touring Edition Exhaust Dual Outlet - Diamond Black Tips (Includes DP)

AWE Tuning black exhaust

AWE Tuning

AWE Tuning Audi B9 A4 Track Edition Exhaust Dual Outlet - Diamond Black Tips (Includes DP)

AWE Tuning silver exhaust

AWE Tuning

AWE Tuning Audi B9 A4 Touring Edition Exhaust Dual Outlet - Chrome Silver Tips (Includes DP)

AWE Tuning silver exhaust

AWE Tuning

AWE Tuning Audi B9 A4 Track Edition Exhaust Dual Outlet - Chrome Silver Tips (Includes DP)

AWE Tuning black exhaust

AWE Tuning

AWE Tuning Audi B8 A4 Touring Edition Exhaust - Quad Tip Diamond Black Tips - Does not fit Cabriolet

Victor Reinz exhaust

Victor Reinz

MAHLE Original Audi A4 99-97 Exhaust Manifold Set

AWE Tuning silver exhaust

AWE Tuning

AWE Tuning Audi B9 A4 SwitchPath Exhaust Dual Outlet - Chrome Silver Tips (Includes DP and Remote)

Victor Reinz exhaust

Victor Reinz

MAHLE Original Audi A3 13-06 Exhaust Manifold Gasket

AWE Tuning silver exhaust

AWE Tuning

AWE Tuning Audi B7 S4 Track Edition Exhaust - Polished Silver Tips

AWE Tuning black exhaust

AWE Tuning

AWE Tuning Audi B9 A4 SwitchPath Exhaust Dual Outlet - Diamond Black Tips (Includes DP and Remote)

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