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Audi A4 Performance Parts & Upgrades

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Audi B8.5 S4 / A4 S-Line Forged Carbon Fiber Front Lip

ES#4490853 - 013875ECS01-02 - Audi B8.5 S4 / A4 S-Line Forged Carbon Fiber Front Lip - Hand-laid chopped carbon fiber to upgrade your exterior styling - ECS - Audi

Hand-laid chopped carbon fiber to upgrade your exterior styling 10X Entries For Our 25th Anniversary Sweepstakes!

For S-Line models from the 2013 model year (Facelift)

Brand:
ECS - Corporate Logo
ES#:
4490853
Mfg#:
013875ECS01-02
In Stock
ON SALE! SAVE 36%
$940.99

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

$599.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Audi B8/B8.5 A4 And S4 Front And Rear Adjustable Sway Bar Kit

ES#4213431 - 022846ecs01kt2 - Audi B8/B8.5 A4 And S4 Front And Rear Adjustable Sway Bar Kit - Reduce body roll and increase cornering speed - ECS - Audi

Reduce body roll and increase cornering speed 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4213431
Mfg#:
022846ECS01KT2
In Stock
ON SALE! SAVE 10%
$733.99

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

$660.59 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

M14 Wheel Stud Kit - Black - Set Of 20

ES#4487785 - VAG-STUD-KIT-20 - M14 Wheel Stud Kit - Black - Set Of 20 - M14x1.5x75mm with conical nuts - Vargas Turbo Technologies - Audi Volkswagen

M14x1.5x75mm with conical nuts 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Vargas Turbo Technologies - Corporate Logo
ES#:
4487785
Mfg#:
VAG-STUD-KIT-20
Ships in 9 Business Days
Auto Notify
$137.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Adjustable Damping Performance Coilover System - Audi B8/B8.5 & Thrust Arm Monoball Upgrade (M14 Ball Joints)

ES#4751074 - 025412ECS01EB2KT - Adjustable Damping Performance Coilover System - Audi B8/B8.5 & Thrust Arm Monoball Upgrade (M14 Ball Joints) - Take control of your ride while going low with our sport-tuned coilover system! - Enthusiast Bundles - Audi

Take control of your ride while going low with our sport-tuned coilover system! Don't See A Bundle You Want - Give Us A Call Or Chat - We Will Make One!

Brand:
Enthusiast Bundles - Corporate Logo
ES#:
4751074
Mfg#:
025412ECS01EB2KT
In Stock
ON SALE! SAVE 22%
$1887.31

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

$1478.77 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

034Motorsport Wheel Spacer Pair - 10mm

ES#4020172 - 034-604-7006 - 034Motorsport Wheel Spacer Pair - 10mm - Designed to fit most Audi & Volkswagen vehicles with a 66.5mm center bore and 5x112mm wheel bolt patterns. - 034Motorsport - Audi

Designed to fit most Audi & Volkswagen vehicles with a 66.5mm center bore and 5x112mm wheel bolt patterns.

Brand:
034Motorsport - Corporate Logo
ES#:
4020172
Mfg#:
034-604-7006
In Stock
$98.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Mahle PowerPak Piston Set - 82.5mm Bore

ES#3508315 - MAHFSI197799948 - Mahle PowerPak Piston Set - 82.5mm Bore - Forged alloy pistons - 82.5mm Bore (stock), 20mm wrist pins, 9.0:1 compression ratio - Integrated Engineering - Audi Volkswagen

Forged alloy pistons - 82.5mm Bore (stock), 20mm wrist pins, 9.0:1 compression ratio 5X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Integrated Engineering - Corporate Logo
ES#:
3508315
Mfg#:
MAHFSI197799948
Ships in 4 Business Days
$839.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

F23L Hybrid Turbocharger

ES#2840948 - f23l - F23L Hybrid Turbocharger - Complete bolt on Turbo upgrade - FrankenTurbo - Audi

Complete bolt on Turbo upgrade

Brand:
FrankenTurbo - Corporate Logo
ES#:
2840948
Mfg#:
F23L
Ships in 3 Business Days
$1949.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

X34 Carbon Fiber Intake System

ES#4500832 - 034-108-1051 - X34 Carbon Fiber Intake System - Delivers improved power, sound, and acceleration in a clean OEM+ package. - 034Motorsport - Audi

Delivers improved power, sound, and acceleration in a clean OEM+ package.

Brand:
034Motorsport - Corporate Logo
ES#:
4500832
Mfg#:
034-108-1051
Back Ordered
Auto Notify
$833.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Billet X-Brace - Red - Audi B8

ES#4220371 - 004802LA01AKT4 - Billet X-Brace - Red - Audi B8 - Improve steering feel and handling! - ECS - Audi

Improve steering feel and handling! 10X Entries For Our 25th Anniversary Sweepstakes!

Fits Pre-Facelift models up to the 2012 model year

Brand:
ECS - Corporate Logo
ES#:
4220371
Mfg#:
004802LA01AKT4
Ships on Aug 17, 2026
Auto Notify
ON SALE! SAVE 25%
$483.99

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

$362.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

AWE Resonated Performance Downpipe - B8/B8.5 2.0T

ES#4043930 - 3215-11020 - AWE Resonated Performance Downpipe - B8/B8.5 2.0T - Designed using CAD modeling software to produce smooth gradual bends, eliminating flow interference. - AWE - Audi

Designed using CAD modeling software to produce smooth gradual bends, eliminating flow interference.

Brand:
AWE - Corporate Logo
ES#:
4043930
Mfg#:
3215-11020
In Stock
$645.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

TTE440L Turbo Upgrade - B9 A4/A5 2.0T

ES#4642790 - TTE10029 - TTE440L Turbo Upgrade - B9 A4/A5 2.0T - Designed to put out over 370HP! - The Turbo Engineers - Audi

Designed to put out over 370HP! Custom tuning software required for installation.

Brand:
The Turbo Engineers - Corporate Logo
ES#:
4642790
Mfg#:
TTE10029
In Stock
ON SALE!
$2999.99

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

$2899.95 USD
This product is lifetime replacement eligible Lifetime Replacement

Street Density Line Transmission Mount - Priced Each

ES#2951988 - 034-509-4006sd - Street Density Line Transmission Mount - Priced Each - Increase performance and durability without sacrificing comfort - 034Motorsport - Audi

Increase performance and durability without sacrificing comfort Automatic transmission only

Brand:
034Motorsport - Corporate Logo
ES#:
2951988
Mfg#:
034-509-4006SD
In Stock
$131.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Audi B6/B7 A4/S4 Rear Sway Bar & Bushing Kit - 25mm

ES#4460442 - 000601LA02 - Audi B6/B7 A4/S4 Rear Sway Bar & Bushing Kit - 25mm - 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#:
4460442
Mfg#:
000601LA02
In Stock
ON SALE! SAVE 17%
$288.99

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

$239.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

034Motorsport Wheel Spacer Pair - 15mm

ES#3618566 - 034-604-7005 - 034Motorsport Wheel Spacer Pair - 15mm - Designed to fit most Audi & Volkswagen vehicles with a 66.6mm center bore and 5x112mm wheel bolt patterns. - 034Motorsport - Audi

Designed to fit most Audi & Volkswagen vehicles with a 66.6mm center bore and 5x112mm wheel bolt patterns.

Brand:
034Motorsport - Corporate Logo
ES#:
3618566
Mfg#:
034-604-7005
In Stock
$115.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

V3 Series Coilover System - Double adjustable damping

ES#2092328 - 35210032 - V3 Series Coilover System - Double adjustable damping - The ultimate in coilover technology featuring double adjustable dampening - KW Suspension - Audi

The ultimate in coilover technology featuring double adjustable dampening Range of lowering is 1.5-2.9" in the front and rear.

Brand:
KW Suspension - Corporate Logo
ES#:
2092328
Mfg#:
35210032
In Stock at Vendor
$2874.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

More About Performance Parts & Upgrades

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