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Audi A4 Performance Parts & Upgrades

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Ignition Service Kit

ES#2561324 - 06C905115M1KT - Ignition Service Kit - Includes four OE red coil packs and four NGK copper core spark plugs - Assembled By ECS - Audi Volkswagen

Includes four OE red coil packs and four NGK copper core spark plugs 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2561324
Mfg#:
06C905115M1KT
In Stock
ON SALE!
$154.99

This product was last offered at the strikethrough price on
05-29-2026

$153.66 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Carbon Fiber Strut Tower Brace - Audi B8 A4/A5/S4/S5

ES#3195022 - 008049ecs01KT - Carbon Fiber Strut Tower Brace - Audi B8 A4/A5/S4/S5 - Provides additional support to the strut towers for flex reduction to enhance your driving experience - ECS - Audi

Provides additional support to the strut towers for flex reduction to enhance your driving experience 10X Entries For Our 25th Anniversary Sweepstakes!
Vehicle must feature an M8 stud on the passenger shock tower for proper install. Please see product photo

Brand:
ECS - Corporate Logo
ES#:
3195022
Mfg#:
008049ECS01KT
In Stock
ON SALE!
$355.99

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

$345.31 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Transmission Mount Bushing Insert Kit

ES#3170153 - 019209ECS01 - Transmission Mount Bushing Insert Kit - Decrease transmission mount slop for better drivetrain response! - ECS - Audi

Decrease transmission mount slop for better drivetrain response! 10X Entries For Our 25th Anniversary Sweepstakes!

Does not fit manual transmission models

Brand:
ECS - Corporate Logo
ES#:
3170153
Mfg#:
019209ECS01
In Stock
ON SALE! SAVE 15%
$93.99

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

$79.89 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Stage 2 IE Performance ECU Tune - Includes TCU Tune & POWERlink Cable

ES#5375506 - IESOCGT2+TCU - Stage 2 IE Performance ECU Tune - Includes TCU Tune & POWERlink Cable - Average gain of 83 horsepower and 82 lb-ft of torque on 91 Octane - Integrated Engineering - Audi

Average gain of 83 horsepower and 82 lb-ft of torque on 91 Octane 5X Entries For Our 25th Anniversary Sweepstakes!
For 8-speed automatic transmissions only

Brand:
Integrated Engineering - Corporate Logo
ES#:
5375506
Mfg#:
IESOCGT2+TCU
In Stock
$1177.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

034Motorsport Res-X Resonator Delete

ES#3426672 - 034-105-7044 - 034Motorsport Res-X Resonator Delete - Unleashes a throaty growl and exotic tone that exudes the sound of performance - Deletes front-most resonator - 034Motorsport - Audi

Unleashes a throaty growl and exotic tone that exudes the sound of performance - Deletes front-most resonator

Brand:
034Motorsport - Corporate Logo
ES#:
3426672
Mfg#:
034-105-7044
In Stock
$222.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Hi-Volume Fuel Pump Upgrade Kit

ES#3146299 - 10-127-101K - Hi-Volume Fuel Pump Upgrade Kit - Up to a 5% Torque increase and additional 10Bar of fuel rail pressure! - Autotech - Audi Volkswagen

Up to a 5% Torque increase and additional 10Bar of fuel rail pressure!

Brand:
Autotech - Corporate Logo
ES#:
3146299
Mfg#:
10-127-101K
Ships in 6 Business Days
$339.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

High Flow High Pressure Fuel Pump

ES#2837251 - 10127100ck - High Flow High Pressure Fuel Pump - Achieve flow rates 50% higher than the original pump! - Autotech - Audi Volkswagen

Achieve flow rates 50% higher than the original pump!

Brand:
Autotech - Corporate Logo
ES#:
2837251
Mfg#:
10127100CK
Ships in 3 Business Days
$749.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

JHM Front Mount Intercooler Kit

ES#4045994 - JHM-B820TFMIC - JHM Front Mount Intercooler Kit - Featuring a robust 3" thick core, ensuring the best cooling performance possible - Requires no trimming or cutting of the bumper! - JH Motorsports - Audi

Featuring a robust 3" thick core, ensuring the best cooling performance possible - Requires no trimming or cutting of the bumper!

Brand:
JH Motorsports - Corporate Logo
ES#:
4045994
Mfg#:
JHM-B820TFMIC
Ships in 5 Business Days
$499.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Billet Aluminum Front Strut Brace - Audi B9 A4/A5/S4/S5/RS5

ES#3188267 - 019218ECS01 - Billet Aluminum Front Strut Brace - Audi B9 A4/A5/S4/S5/RS5 - Provides additional support to the strut towers for flex reduction to enhance your driving experience - ECS - Audi

Provides additional support to the strut towers for flex reduction to enhance your driving experience 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3188267
Mfg#:
019218ECS01
In Stock
ON SALE! SAVE 20%
$383.99

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

$306.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Carbon Fiber Front Lip Spoiler - Audi B8.5 A4/S4

ES#3046047 - 013875ECS01A - Carbon Fiber Front Lip Spoiler - Audi B8.5 A4/S4 - Hand-laid carbon fiber to upgrade your exterior styling - ECS - Audi

Hand-laid 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#:
3046047
Mfg#:
013875ECS01A
In Stock
ON SALE! SAVE 20%
$999.99

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

$799.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Special Active Front Strut - Priced Each

ES#3560616 - 82451264 - Special Active Front Strut - Priced Each - Superior handling without compromising ride quality - Koni - Audi

Superior handling without compromising ride quality For vehicles with S-line suspension

Brand:
Koni - Corporate Logo
ES#:
3560616
Mfg#:
82451264
In Stock
ON SALE! SAVE 20%
$203.34

This product was last offered at the strikethrough price on
02-27-2026

$162.23 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Audi B8 Billet Aluminum Front Strut Tower / Chassis Brace

ES#4137422 - 028501ecs01KT - Audi B8 Billet Aluminum Front Strut Tower / Chassis Brace - Provides additional support to the strut towers for flex reduction to enhance your driving experience - ECS - Audi

Provides additional support to the strut towers for flex reduction to enhance your driving experience 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4137422
Mfg#:
028501ECS01KT
In Stock
ON SALE! SAVE 10%
$171.99

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

$154.79 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

KW V3 Series Coilover Kit

ES#2092354 - 35210075 - KW V3 Series Coilover Kit - The ultimate in coilover technology featuring double adjustable dampening - KW Suspension - Audi

The ultimate in coilover technology featuring double adjustable dampening 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#:
2092354
Mfg#:
35210075
In Stock at Vendor
$3394.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Stainless Steel Braided Line Kit

ES#4635698 - 034-303-0015 - Stainless Steel Braided Line Kit - Features telfon linings, stainless steel braided reinforcement, and a protective black PVC covering. - 034Motorsport - Audi

Features telfon linings, stainless steel braided reinforcement, and a protective black PVC covering.

Brand:
034Motorsport - Corporate Logo
ES#:
4635698
Mfg#:
034-303-0015
In Stock
$195.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

More About Performance Parts & Upgrades

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Manufacturer names and/or part numbers are used only for identification purposes.

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