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Audi A4 Performance Parts & Upgrades

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DR Series Wheel Spacers (Black) - 10mm (1 Pair)

ES#3618484 - 2055668SW - DR Series Wheel Spacers (Black) - 10mm (1 Pair) - Get that stance that you've been craving with these new spacers - H&R - Audi MINI Porsche

Get that stance that you've been craving with these new spacers 10X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
Maximum factory hub height of up to 13.5mm. Inside wheel bevel = 5.0 x 45 degrees

Brand:
H&R - Corporate Logo
ES#:
3618484
Mfg#:
2055668SW
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.

$109.99

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

$98.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

VTF Adjustable Lowering Springs

Aggressive looks and ultimate handling. Average lowering of 1.0"F 1.8"R 10X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
For all wheel drive models only

Brand:
H&R - Corporate Logo
ES#:
4070750
Mfg#:
23013-1
Ships in 3 Business Days
$989.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Pro-Kit Performance Springs

ES#4140195 - E10-15-023-04-22 - Pro-Kit Performance Springs - High performance handling & aggressive looks - Average lowering of 1.2" front and rear - Eibach - Audi

High performance handling & aggressive looks - Average lowering of 1.2" front and rear

Brand:
Eibach - Corporate Logo
ES#:
4140195
Mfg#:
E10-15-023-04-22
In Stock
10% off MSRP

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

$439.99

This product was last offered at the strikethrough price on
07-27-2026

$395.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Build Your Own Power Package - Audi B9 A4 2.0T

ES#4017053 - B9A4PWRPK - Build Your Own Power Package - Audi B9 A4 2.0T - Go from mild to wild! Select the options you want for your build. - Assembled By ECS - Audi

Go from mild to wild! Select the options you want for your build. 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
4017053
Mfg#:
B9A4PWRPK
Ships on Dec 28, 2026
ON SALE!
Starting at $0.00 USD
Customize
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Supertech Stainless Intake Valve - Priced Each

ES#3624375 - ST-AIVN-1103 - Supertech Stainless Intake Valve - Priced Each - Standard sized valve head diameter, factory triple groove keeper setup - Supertech - Audi Volkswagen

Standard sized valve head diameter, factory triple groove keeper setup *Valves priced individually - For 1.8T - qty 12 needed / For 2.7T - qty 18 needed - Please see long description for additional valve seal/keeper informa

Brand:
Supertech - Corporate Logo
ES#:
3624375
Mfg#:
ST-AIVN-1103
In Stock
$28.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

EMD Auto Lowering Spring Kit

ES#3218658 - EMD-B9Q-LS - EMD Auto Lowering Spring Kit - Approximately 1.6" Front & Rear drop - Emmanuele Design - Audi

Approximately 1.6" Front & Rear drop

Brand:
Emmanuele Design - Corporate Logo
ES#:
3218658
Mfg#:
EMD-B9Q-LS
Ships in 4 Business Days
3% off MSRP

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

$290.00

This product was last offered at the strikethrough price on
07-27-2026

$280.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ECS Wheel Spacer & Bolt Kit - 10mm With Conical Seat Bolts

ES#2649763 - 00240302A10KT1 - ECS Wheel Spacer & Bolt Kit - 10mm With Conical Seat Bolts - Includes everything you need to install spacers on two wheels - ECS - Audi Volkswagen

Includes everything you need to install spacers on two wheels 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2649763
Mfg#:
00240302A10KT1
In Stock
ON SALE! SAVE 25%
$144.99

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

$108.74 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

B9 A4/S4 Carbon Fiber Inlet Scoop

ES#3537354 - 024641ecs02KT - B9 A4/S4 Carbon Fiber Inlet Scoop - Channel air to your intake with performance syle! - ECS - Audi

Channel air to your intake with performance syle! 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3537354
Mfg#:
024641ECS02KT
Ships on Dec 18, 2026
ON SALE! SAVE 10%
$271.61

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

$244.45 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Stage 4 Extreme Clutch Kit

Designed for extreme power that needs to be put to the wheels. Conservatively rated at 550+ ft/lbs. Includes single mass flywheel

Brand:
South Bend Clutch - Corporate Logo
ES#:
3106539
Mfg#:
K70350FSSXKT
Ships in 1 Business Day
$1953.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

2-Piece Lightweight Rear Brake Rotors - Pair (300x12)

ES#4883799 - 050887la01KT - 2-Piece Lightweight Rear Brake Rotors - Pair (300x12) - Direct bolt-on, dimpled and slotted replacements that offer improved braking and increased brake cooling capacity! - ECS - Audi

Direct bolt-on, dimpled and slotted replacements that offer improved braking and increased brake cooling capacity! 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4883799
Mfg#:
050887LA01KT
In Stock
ON SALE! SAVE 10%
$722.99

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

$650.69 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

F23L Hybrid Turbocharger

ES#3082363 - F23L-CERAMIC - F23L Hybrid Turbocharger - Complete bolt on Turbo upgrade - With ceramic coated turbine/manifold option - FrankenTurbo - Audi

Complete bolt on Turbo upgrade - With ceramic coated turbine/manifold option

Brand:
FrankenTurbo - Corporate Logo
ES#:
3082363
Mfg#:
F23L-CERAMIC
Ships on Aug 12, 2026
$1949.00 USD
This product is lifetime replacement eligible Lifetime Replacement

Wheel Spacer & Bolt Kit - 15mm With Conical Seat Bolts

ES#2603080 - 002411ECS03AKT - Wheel Spacer & Bolt Kit - 15mm With Conical Seat Bolts - Complete kit for two wheels, comes with everything you need to install spacers on your aftermarket wheels - ECS - Audi

Complete kit for two wheels, comes with everything you need to install spacers on your aftermarket wheels 10X Entries For Our 25th Anniversary Sweepstakes!
Fits most aftermarket wheels that use conical seat wheel bolts

Brand:
ECS - Corporate Logo
ES#:
2603080
Mfg#:
002411ECS03AKT
In Stock
ON SALE! SAVE 25%
$171.99

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

$128.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

RA4 240mm Clutch Conversion Kit - Stage 2

ES#5486 - ra4s2-steel - RA4 240mm Clutch Conversion Kit - Stage 2 - ECS RA4 Lightweight Flywheel with the Audi RS4 clutch kit - ECS - Audi Volkswagen

ECS RA4 Lightweight Flywheel with the Audi RS4 clutch kit 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
5486
Mfg#:
RA4S2-STEEL
Ships on Sep 14, 2026
Auto Notify
ON SALE! SAVE 10%
$1067.99

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

$961.19 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Stage 2 Clutch Kit - Endurance

ES#3106544 - k70614hdofeKT - Stage 2 Clutch Kit - Endurance - Designed for track use while still streetable - Rated at 440 ft/lbs - South Bend Clutch - Audi

Designed for track use while still streetable - Rated at 440 ft/lbs

Brand:
South Bend Clutch - Corporate Logo
ES#:
3106544
Mfg#:
K70614HDOFEKT
Ships in 1 Business Day
$1920.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Audi B8 S4 Pre-facelift Rear Diffuser & Trunk Spoiler

ES#4751215 - 026861ECS01EB2KT - Audi B8 S4 Pre-facelift Rear Diffuser & Trunk Spoiler - Add some aggressive styling to your Audi! - Enthusiast Bundles - Audi

Add some aggressive styling to your Audi! Don't See A Bundle You Want - Give Us A Call Or Chat - We Will Make One!
Fits pre-facelift B8 S-Line models with quad tips only

Brand:
Enthusiast Bundles - Corporate Logo
ES#:
4751215
Mfg#:
026861ECS01EB2KT
In Stock
ON SALE! SAVE 35%
$733.99

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

$478.97 USD
Free Shipping
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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