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Audi A4 Performance Parts & Upgrades

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Front USR Series Sport Slotted Rotors - Pair (338x30mm)

ES#4213721 - USR2026 - Front USR Series Sport Slotted Rotors - Pair (338x30mm) - Upgrade to a Turbo slotted rotor for improved braking - EBC - Audi

Upgrade to a Turbo slotted rotor for improved braking 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
EBC - Corporate Logo
ES#:
4213721
Mfg#:
USR2026
In Stock
5% off MSRP

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

$513.99

This product was last offered at the strikethrough price on
07-24-2026

$487.99 USD

KW V1 Series Coilover Kit

ES#2091966 - 10210075 - KW V1 Series Coilover Kit - Variant 1 coilovers offer the best balance between sporty driving and comfort - KW Suspension - Audi

Variant 1 coilovers offer the best balance between sporty driving and comfort Fits sedan models without factory EDC. Range of lowering is 0.8-1.5" in the front and 0.4-1.5" in the rear.

Brand:
KW Suspension - Corporate Logo
ES#:
2091966
Mfg#:
10210075
In Stock at Vendor
$2194.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Audi B8 A4 Wheel Spacer Flush Fit Kit - Black Bolts

ES#2951811 - 011326ECS01KT1 - Audi B8 A4 Wheel Spacer Flush Fit Kit - Black Bolts - Includes spacers & Black bolts to obtain a flush look on your OE 18" wheels - ECS - Audi

Includes spacers & Black bolts to obtain a flush look on your OE 18" wheels 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2951811
Mfg#:
011326ECS01KT1
In Stock
ON SALE! SAVE 25%
$304.99

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

$228.74 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Performance Rear Differential Mount - Audi B6/B7 A4/S4

ES#2717984 - 003249ECS01 - Performance Rear Differential Mount - Audi B6/B7 A4/S4 - Increase drivetrain rigidity and response! - ECS - Audi

Increase drivetrain rigidity and response! 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2717984
Mfg#:
003249ECS01
In Stock
ON SALE!
$235.99

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

$228.04 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Unitronic Performance Software - With UniCONNECT+ Cable

ES#4464499 - 2.0T-B8-UC - Unitronic Performance Software - With UniCONNECT+ Cable - Choose the stage that meets your power goals! - Unitronic - Audi

Choose the stage that meets your power goals! This tune can be performed at home with the included UniCONNECT+ cable. Only available for purchase in th

Brand:
Unitronic - Corporate Logo
ES#:
4464499
Mfg#:
2.0T-B8-UC
In Stock
Starting at $714.99 USD
Customize
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Clutch Masters FX100 Clutch Kit & Single Mass Flywheel

ES#3971202 - 02390-HD00-SK - Clutch Masters FX100 Clutch Kit & Single Mass Flywheel - Features a Heavy duty pressure plate, Sprung hub Organic clutch disc, and a Steel Single Mass Flywheel. - Clutch Masters - Audi

Features a Heavy duty pressure plate, Sprung hub Organic clutch disc, and a Steel Single Mass Flywheel.

Brand:
Clutch Masters - Corporate Logo
ES#:
3971202
Mfg#:
02390-HD00-SK
Ships in 7 Business Days
$2162.99 USD
Free Shipping

3" High Flow Catalytic Converter

ES#2864552 - 034-105-4021 - 3" High Flow Catalytic Converter - complete drop-in upgrade will bolt up to stock/Stock Fit Turbo - 034Motorsport - Audi

complete drop-in upgrade will bolt up to stock/Stock Fit Turbo

Brand:
034Motorsport - Corporate Logo
ES#:
2864552
Mfg#:
034-105-4021
In Stock
$474.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

CTS Lowering Spring Set - B8/B8.5 A4/S4

ES#4686149 - CTS-LS-012 - CTS Lowering Spring Set - B8/B8.5 A4/S4 - Average lowering front: 2.0" rear: 2.0" - CTS - Audi

Average lowering front: 2.0" rear: 2.0"

Brand:
CTS - Corporate Logo
ES#:
4686149
Mfg#:
CTS-LS-012
Back Ordered
ON SALE! SAVE 15%
$249.99

This product was last offered at the strikethrough price on
07-10-2026

$212.49 USD
Free Shipping

ECS Wheel Spacers - 5mm (Pair)

ES#2167469 - 002411ECS01A05Kt - ECS Wheel Spacers - 5mm (Pair) - Get the right size wheel spacer for your vehicle - ECS - Audi BMW Porsche

Get the right size wheel spacer for your vehicle 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2167469
Mfg#:
002411ECS01A05KT
In Stock
ON SALE! SAVE 25%
$137.99

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

$103.48 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Audi B6/B7 A4/S4 Front 32mm & Rear 25mm Sway Bar Kit

ES#4609000 - 000601LA01FRKT - Audi B6/B7 A4/S4 Front 32mm & Rear 25mm Sway Bar Kit - Reduce body roll and enhance handling! - ECS - Audi

Reduce body roll and enhance handling! 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4609000
Mfg#:
000601LA01FRKT
In Stock
ON SALE! SAVE 10%
$672.99

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

$605.69 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Stage 2+ Clutch Kit

ES#2918851 - SA783H-2 - Stage 2+ Clutch Kit - Ideal for street, track, and drag use - Rated at 405 ft/lbs - Spec Clutches - Audi

Ideal for street, track, and drag use - Rated at 405 ft/lbs

Brand:
Spec Clutches - Corporate Logo
ES#:
2918851
Mfg#:
SA783H-2
Ships in 3 Business Days
$1059.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

More About Performance Parts & Upgrades

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