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Audi A4 Performance Parts & Upgrades

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Front Big Brake Kit - stage 1 - ECS V5 Cross Drilled & Slotted Rotors (312x25)

ES#91 - B5A8BBKNPAX/S - Front Big Brake Kit - stage 1 - ECS V5 Cross Drilled & Slotted Rotors (312x25) - Upgrade your stopping power with larger diameter rotors - Assembled By ECS - Audi Volkswagen

Upgrade your stopping power with larger diameter rotors 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
91
Mfg#:
B5A8BBKNPAX/S
Ships on Feb 22, 2027
ON SALE!
$644.80

This product was last offered at the strikethrough price on
05-02-2026

$593.93 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Audi Thrust Arm Monoball Upgrade - Pre-Installed in Meyle HD Arms (M12 Ball Joints)

ES#4429964 - 012596LA01 - Audi Thrust Arm Monoball Upgrade - Pre-Installed in Meyle HD Arms (M12 Ball Joints) - Eliminate deflection caused by stock rubber bushings! - ECS - Audi

Eliminate deflection caused by stock rubber bushings! 10X Entries Into Our F80 M3 Sweepstakes

Up to production date 11/2/2009 (M12 Ball Joints)

Brand:
ECS - Corporate Logo
ES#:
4429964
Mfg#:
012596LA01
In Stock
ON SALE! SAVE 19%
$732.99

This product was last offered at the strikethrough price on
06-13-2026

$591.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

B6 A4/S4 Master LED Interior Lighting Kit

ES#2215391 - B6A4LEDINT - B6 A4/S4 Master LED Interior Lighting Kit - Transform your complete interior in minutes with new LED interior bulbs from Ziza - ZiZa - Audi

Transform your complete interior in minutes with new LED interior bulbs from Ziza 10X Entries Into Our F80 M3 Sweepstakes
Sedan models only

Brand:
ZiZa - Corporate Logo
ES#:
2215391
Mfg#:
B6A4LEDINT
In Stock
ON SALE! SAVE 50%
$117.99

This product was last offered at the strikethrough price on
05-02-2026

$59.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front Big Brake Kit - Stage 1 - ECS V5 Slotted Rotors (312x25)

ES#90 - B5A8BBKNPASLT - Front Big Brake Kit - Stage 1 - ECS V5 Slotted Rotors (312x25) - Upgrade your stopping power with larger diameter rotors - ECS - Audi Volkswagen

Upgrade your stopping power with larger diameter rotors 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
90
Mfg#:
B5A8BBKNPASLT
Ships on Feb 22, 2027
ON SALE! SAVE 10%
$651.92

This product was last offered at the strikethrough price on
06-13-2026

$586.73 USD
This product is lifetime replacement eligible Lifetime Replacement

Carbon Fiber Mirror Cap Set - Audi B9 A4/A5/S4/S5

ES#3411933 - 024564ECS02 - Carbon Fiber Mirror Cap Set - Audi B9 A4/A5/S4/S5 - Upgrade your exterior look - ECS - Audi

Upgrade your exterior look 10X Entries Into Our F80 M3 Sweepstakes

For vehicles without lane change assist

Brand:
ECS - Corporate Logo
ES#:
3411933
Mfg#:
024564ECS02
Ships on Jan 25, 2027
ON SALE! SAVE 20%
$365.99

This product was last offered at the strikethrough price on
06-13-2026

$292.79 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

DR Series Wheel Spacers - 18mm (1 Pair)

ES#2561830 - 3655668 - DR Series Wheel Spacers - 18mm (1 Pair) - Get a new set of spacers and widen the stance of your vehicle - H&R - Audi Mercedes Benz Porsche

Get a new set of spacers and widen the stance of your vehicle We Price Match - Give Us A Call or Chat!

Brand:
H&R - Corporate Logo
ES#:
2561830
Mfg#:
3655668
Ships in 3 Business Days
10% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$129.99

This product was last offered at the strikethrough price on
07-01-2026

$116.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
Scratch and Dent Item

Carbon Fiber Front Lip Spoiler - Audi B9 A4/S4 - (NO LONGER AVAILABLE) *Scratch And Dent*

ES#5396163 - 019196ECS01A - Carbon Fiber Front Lip Spoiler - Audi B9 A4/S4 - (NO LONGER AVAILABLE) *Scratch And Dent* - Hand-laid carbon fiber to upgrade your exterior styling - Scratch & Dent - Audi

Hand-laid carbon fiber to upgrade your exterior styling ALL SALES FINAL. ITEMS MAY BE DAMAGED OR MISSING COMPONENTS. PLEASE SEE IMAGES BEFORE PURCHASING. Want To Haggle? Give Us A Call Or Chat To Make An Offer On This Product!

Brand:
Scratch & Dent - Corporate Logo
ES#:
5396163
Mfg#:
019196ECS01A
In Stock
ON SALE! SAVE 34%
$875.99

This product was last offered at the strikethrough price on
05-02-2026

$581.40 USD

Rear Replacement Rings For ES4608924

Replace your rotors with 2-piece rotors from Giro Disc.

Brand:
Girodisc - Corporate Logo
ES#:
4699048
Mfg#:
D2-130
Ships in 2 Business Days
$580.00 USD
Free Shipping

Chrome-Moly Forged Lightweight Flywheel

ES#4046131 - SMFL-B7A420-KIT - Chrome-Moly Forged Lightweight Flywheel - 8lbs lights than the OEM flywheel! - JH Motorsports - Audi

8lbs lights than the OEM flywheel! To be used with B7 RS4 clutch kits only

Brand:
JH Motorsports - Corporate Logo
ES#:
4046131
Mfg#:
SMFL-B7A420-KIT
Ships in 10 Business Days
$579.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Performance Stainless 2.5" Downpipe

ES#3175279 - 251130R - Performance Stainless 2.5" Downpipe - High flow, stainless downpipe kit to be used with factory exhaust - Techtonics Tuning - Audi

High flow, stainless downpipe kit to be used with factory exhaust Fits quattro 6-speed transmission models only - To be used with factory exhaust

Brand:
Techtonics Tuning - Corporate Logo
ES#:
3175279
Mfg#:
251130R
Ships on Oct 13, 2026
$286.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Harmonic Damper Crankshaft Pulley

ES#3557367 - 551201_AEB - Harmonic Damper Crankshaft Pulley - Provides broad range control of destructive crankshaft torsional vibration for optimum horsepower and durability - Fluidampr - Audi Volkswagen

Provides broad range control of destructive crankshaft torsional vibration for optimum horsepower and durability This is a custom product and requires 2-3 week lead time to manufacture due to the zinc plating process.
Engine codes AEB & ATW

Brand:
Fluidampr - Corporate Logo
ES#:
3557367
Mfg#:
551201_AEB
Back Ordered
$569.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear Upper Control Arm Bushing Set - Outer - Race

ES#2650519 - PFR3-208Bx2 - Rear Upper Control Arm Bushing Set - Outer - Race - Improves handling and control - Upgrade to a more engaging driving experience - Powerflex Black Series - Audi

Improves handling and control - Upgrade to a more engaging driving experience

Brand:
Powerflex Black Series - Corporate Logo
ES#:
2650519
Mfg#:
PFR3-208BX2
Back Ordered
$70.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Stage 2 Daily Clutch Kit

ES#3106492 - k70205hdosmfKT - Stage 2 Daily Clutch Kit - Designed for the daily-driven, weekend track warrior. Conservatively rated at 280ft/lbs. - South Bend Clutch - Audi Volkswagen

Designed for the daily-driven, weekend track warrior. Conservatively rated at 280ft/lbs. For use with single mass flywheel

Brand:
South Bend Clutch - Corporate Logo
ES#:
3106492
Mfg#:
K70205HDOSMFKT
Ships in 1 Business Day
$566.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

LED Reverse Light Kit

ES#2996217 - 003276ECS01 - LED Reverse Light Kit - Illuminate the path behind you with these bright LED's from Ziza! - ZiZa - Audi

Illuminate the path behind you with these bright LED's from Ziza! 10X Entries Into Our F80 M3 Sweepstakes
For vehicles from the 2013 model year only (B8.5 models only)

Brand:
ZiZa - Corporate Logo
ES#:
2996217
Mfg#:
003276ECS01
In Stock
ON SALE! SAVE 10%
$69.99

This product was last offered at the strikethrough price on
05-02-2026

$62.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

HPA Wheel Spacer & Bolt Kit - 15mm

ES#5434344 - HVW-832 - HPA Wheel Spacer & Bolt Kit - 15mm - Push your wheels out for a bold stance with HPAs 15mm Wheel Spacer & Bolt Kit - precision CNC machined hubcentric spacers and extended hardware for a secure, vibration free fit. - HPA Motorsports - Audi BMW Porsche

Push your wheels out for a bold stance with HPA’s 15mm Wheel Spacer & Bolt Kit - precision CNC machined hubcentric spacers and extended hardware for a secure, vibration free fit.

Brand:
HPA Motorsports - Corporate Logo
ES#:
5434344
Mfg#:
HVW-832
Back Ordered
Starting at $140.00 USD
Customize
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Performance Parts & Upgrades

All the performance upgrade options from the best brands in the business to help build your dreams. Our performance parts catalog is the largest anywhere and constantly growing to keep your build on track.

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