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.
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Audi A4 Category:suspension and components Parts
659 parts available
Shop aftermarket parts for the Audi A4. Verified fitment, free shipping, 30-day returns.
H&R
H&R 09-14 Audi A4 Avant Quattro (AWD) B8 30mm Adj. 2 Hole Sway Bar - Front

KYB
KYB Shocks & Struts Strut Boots Rear AUDI A4 2002-04 AUDI RS4 2007-08 AUDI TT (Exc. Quattro) 2008-09

KONI
Koni 1145 SPORT Kit Audi A4 (B8) FWD & Quattro & S4

H&R
H&R 17-21 Audi A4 Premium/Premium Plus/Prestige (2WD) B9 Street Perf. Coil Over Kit (w/o MRC)

KW
KW Audi A4 B9 Sedan 2WD Without EDC 48.5mm Coilover Kit V1

Air Lift
Air Lift Performance 17-25 Audi A4 / A5 / S4 / S5 Rear Air Suspension Lowering Kit

H&R
H&R 02-08 Audi A4/A4 Avant (2WD) 4 Cyl 8E Sport Spring (Incl. Facelift Model)

KW
KW Coilover Kit V1 Audi A4 S4 (8K/B8) w/ electronic dampening control Sedan FWD + Quattro

Bilstein
Bilstein B6 (DampTronic) 17-21 Audi A4 Allroad Front Monotube Shock Absorber

H&R
H&R 00-03 Audi S4 (AWD) Street Perf. Coil Over (Ultra Performance/Tuner Fitment)

Bilstein
Bilstein B12 Audi A4 Avant (8K5) K 2 PK Suspension Kit

H&R
H&R Trak+ 25mm Wheel Adapter 5/112 - 66.5 CB - 14x1.5 to 5/112 - 57.1 CB - 14x1.5

Whiteline
Whiteline Audi A4/A6/A8/S4/S6 (B5/B6/C5/C6/D2) Front Caster Correction Radius Arm to Chassis Bushing

Bilstein
Bilstein B12 2002 Audi A4 Quattro Avant Front and Rear Suspension Kit

KW
KW Coilover Kit V2 Audi A4 S4 (8K/B8) w/ electronic dampening control Sedan FWD + Quattro

Hotchkis
Hotchkis 96-02 Audi Quattro S4 Rear Swaybar Rebuild Kit (22801R)

Bilstein
Bilstein B12 2002 Audi A4 Base Front and Rear Suspension Kit

H&R
H&R 98-01 Audi A4 Avant (2WD) B5 Touring Cup Kit (Before 1/31/99)

H&R
H&R 09-15 Audi A4/A5 2WD Typ B8 VTF Adjustable Lowering Springs (Incl. MRC)

Bilstein
Bilstein B16 (PSS10) 17-19 Audi A4 Front and Rear Suspension Kit

KONI
Koni Sport (Yellow) Shock 02-08 Audi A4 FWD & Quattro Sedan/ Avant & Cabriolet - Front

Bilstein
Bilstein B12 2002 Audi A4 Base Front and Rear Suspension Kit

KW
KW Coilover Kit V1 2017+ Audi A4 (B9) Sedan / A5 Coupe Quattro w/ Electronic Dampening

Eibach
Eibach Sportline Kit for 17-18 Audi A4 B9 Quattro

KW
KW Coilover Kit V1 Audi A4 S4 (8K/B8) w/o electronic dampening control Avant Quattro All

Bilstein
Bilstein B12 2007 Audi A4 Cabrio Elite Front and Rear Suspension Kit

Bilstein
Bilstein B12 2009 Audi A4 Base Front and Rear Suspension Kit

KYB
KYB Shocks & Struts Excel-G Front AUDI A4 2000-08

Bilstein
Bilstein B12 1996 Audi A4 Base Front and Rear Suspension Kit

H&R
H&R 98-01 Audi A4 Avant Quattro/A4 Quattro (AWD) B5 32mm Adj. 2 Hole Sway Bar - Front

KONI
Koni 1145 Sport Kit 02-08 Audi A4 4cyl Quattro Avant

KW
KW H.A.S. 2017+ Audi A4/S4 Quattro (B9) AWD w/o Electronic Dampers (50mm)

Bilstein
Bilstein B4 17-19 Audi A4 / A4 Quattro Front Twintube Shock Absorber

Eibach
Eibach Sportline Kit for 09-15 Audi A4 2.0L Sedan

H&R
H&R 09-16 Audi A4 Quattro/S4 (AWD) B8 Ultra Low Coil Over (Tuner Fitment)

SPC Performance
SPC Performance 17+ Audi A4/S4/ 18+ Audi A5/S5 Front Adj Upper Multi Link Control Arm Kit

Bilstein
Bilstein B4 OE Replacement 17-19 Audi A4 / 17-18 Allroad / 18-19 S4 Front DampTronic Shock Absorber

H&R
H&R 17-22 Audi A4(B9) Sway Bar Kit - 32mm Front/22mm Rear

Bilstein
Bilstein B12 2004 Audi A4 Avant Front and Rear Suspension Kit

Bilstein
Bilstein B8 Performance Plus 17-19 Audi A4 / A4 Quattro Rear Monotube Shock

Bilstein
Bilstein B6 2009 Audi A4 Quattro Avant Front 46mm Monotube Shock Absorber

SPC Performance
SPC Performance 98-08 Audi A4/S4/RS4 / 98-05 VW Passat Front Adj Upper Racing Control Arm Kit

Bilstein
Bilstein B4 OE Replacement 17-19 Audi A4 / 17-18 Allroad / 18-19 S4 Rear DampTronic Shock Absorber

Bilstein
Bilstein B4 2008 Audi A4 Quattro Trendy Front Twintube Shock Absorber

Bilstein
Bilstein B4 17-19 Audi A4 / A4 Quattro Rear Twintube Shock Absorber

SPC Performance
SPC Performance 09-17 Audi A4/RS4/S4 / 09-16 Audi A5/S5 Front Upper Multi Link Control Arm - Right

Bilstein
Bilstein B12 2002 Audi A4 Quattro Avant Front and Rear Suspension Kit

Bilstein
Bilstein B12 2002 Audi A4 Base Front and Rear Suspension Kit

KYB
KYB Shocks & Struts Excel-G Rear AUDI A4 1995-99

Bilstein
Bilstein B12 1997 Audi A4 Base Front and Rear Suspension Kit

Bilstein
Bilstein B6 1996 Audi A4 Quattro Base Rear 36mm Monotube Shock Absorber

KONI
Koni Sport (Yellow) Shock 09-13 Audi A4 FWD & Quattro with Audi S-line suspension - Front

H&R
H&R 02-08 Audi A4 Avant Quattro/A4 Quattro (AWD) 4 Cyl 8E Sport Spring (Incl. Facelift Model)

Eibach
Eibach Pro-Kit for 00-08 Audi A4 Quattro Sedan

H&R
H&R 98-01 Audi A4 Avant Quattro (AWD) B5 Race Spring

KYB
KYB Shocks & Struts Excel-G Front A4 Quattro 2014-2009

Bilstein
Bilstein B6 2002 Audi A4 Base Front 46mm Monotube Shock Absorber

KW
KW H.A.S. Audi A4 S4 (8K/B8) Sedan FWD + Quattro; A5 S5

Bilstein
Bilstein B12 2002 Audi A4 Quattro Base Front and Rear Suspension Kit

KONI
Koni 1145 Sport Kit 09-13 Audi A4 2.0 Sedan FWD & Quattro
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.
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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