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Audi B9 A4 Quattro 2.0T

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Audi B9 A4 Quattro 2.0T Performance Parts & Upgrades

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Complete Drivetrain Mount Insert Kit

ES#3194637 - 019208ecs01KT1 - Complete Drivetrain Mount Insert Kit - Decrease slop and increase drivetrain rigidity and response! - ECS - Audi

Decrease slop and increase drivetrain rigidity and response! 10X Entries Into Our F80 M3 Sweepstakes

Does not fit manual transmission models

Brand:
ECS - Corporate Logo
ES#:
3194637
Mfg#:
019208ECS01KT1
In Stock
ON SALE! SAVE 10%
$242.99

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

$218.69 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Carbon Fiber Rear Diffuser - Audi B9 A4

ES#3145741 - 019193ECS01A - Carbon Fiber Rear Diffuser - Audi B9 A4 - Hand-laid carbon fiber to upgrade your exterior styling - ECS - Audi

Hand-laid carbon fiber to upgrade your exterior styling 10X Entries Into Our F80 M3 Sweepstakes

Fits pre-facelift, S-line models (up to 2019), without integrated tips in the rear valance

Brand:
ECS - Corporate Logo
ES#:
3145741
Mfg#:
019193ECS01A
In Stock
ON SALE!
$774.99

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

$719.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Competition Intercooler Kit

ES#4017642 - 200001126 - Competition Intercooler Kit - The high performance intercooler core provides a 134% larger frontal area and 105% more volume compared to the stock mounted intercooler. - Wagner Tuning - Audi

The high performance intercooler core provides a 134% larger frontal area and 105% more volume compared to the stock mounted intercooler.

Brand:
Wagner Tuning - Corporate Logo
ES#:
4017642
Mfg#:
200001126
Ships on Sep 22, 2026
$1040.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cat-Back Exhaust System - Non-Resonated

2.76" stainless steel with your choice of tip style

Brand:
Milltek Sport - Corporate Logo
ES#:
4159437
Mfg#:
B9A4NONRESONATED
Ships in 5 Business Days
Starting at $2026.99 USD
Customize
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Carbon Fiber Engine Cover Overlay

ES#3426555 - 022526ecs01KT - Carbon Fiber Engine Cover Overlay - Add a touch of carbon fiber to your stock engine cover! - ECS - Audi

Add a touch of carbon fiber to your stock engine cover! 10X Entries Into Our F80 M3 Sweepstakes

For vehicles with production dates up to 03/22/2021

Brand:
ECS - Corporate Logo
ES#:
3426555
Mfg#:
022526ECS01KT
In Stock
ON SALE! SAVE 15%
$262.99

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

$223.54 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Carbon Fiber Trunk Spoiler - Audi B9 A4/S4

ES#3141741 - 019220ECS01A - Carbon Fiber Trunk Spoiler - Audi B9 A4/S4 - Add a touch of style and real carbon fiber to your Audi - ECS - Audi

Add a touch of style and real carbon fiber to your Audi 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
3141741
Mfg#:
019220ECS01A
In Stock
ON SALE! SAVE 28%
$694.99

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

$500.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Turbo Systems B9 A4/A5 Hybrid Turbocharger Upgrade (400+ HP)

The Turbo Systems hybrid turbocharger is an original turbocharger that has been reworked to suit larger compressor and turbine wheels, along with a ball bearing cartridge.

Brand:
Emmanuele Design - Corporate Logo
ES#:
4415827
Mfg#:
TS-B9-STG1
Ships in 2 Business Days
$2000.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

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 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
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.

$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

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
08-24-2026

$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 Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
4017053
Mfg#:
B9A4PWRPK
Ships on Jan 26, 2027
ON SALE!
Starting at $0.00 USD
Customize
Free Shipping
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 5 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
08-24-2026

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

IE Lowering Springs

ES#5457158 - IESSCK2 - IE Lowering Springs - Performance without the punishment: get a connected, aggressive stance while maintaining the ride comfort of your factory dampers. - Integrated Engineering - Audi

Performance without the punishment: get a connected, aggressive stance while maintaining the ride comfort of your factory dampers.

Brand:
Integrated Engineering - Corporate Logo
ES#:
5457158
Mfg#:
IESSCK2
In Stock
$324.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Rear Performance Air Ride Kit

ES#3972077 - 78670 - Rear Performance Air Ride Kit - Allow your B9 Audi to sit on the ground! - Air Lift - Audi

Allow your B9 Audi to sit on the ground!

Brand:
Air Lift - Corporate Logo
ES#:
3972077
Mfg#:
78670
Ships in 5 Business Days
$1889.99 USD
This product is lifetime replacement eligible Lifetime Replacement

19" Wheel Spacer Flush Fit Kit - Black Bolts

ES#4476369 - B9FLUSH1KT - 19" Wheel Spacer Flush Fit Kit - Black Bolts - Includes H&R spacers & Black bolts to obtain a flush look on your OE 19" wheels - Assembled By ECS - Audi

Includes H&R spacers & Black bolts to obtain a flush look on your OE 19" wheels 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
4476369
Mfg#:
B9FLUSH1KT
Back Ordered
ON SALE! SAVE 10%
$299.99

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

$269.49 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

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