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Audi A4 Performance Parts & Upgrades

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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

Billet Oil Filter Housing - EA837 3.0T

ES#4583476 - 034-110-9004 - Billet Oil Filter Housing - EA837 3.0T - Looking to increase the reliability and integrity of your oil filter housing, and spruce up your engine bay as a bonus? - 034Motorsport - Audi Volkswagen

Looking to increase the reliability and integrity of your oil filter housing, and spruce up your engine bay as a bonus?

Brand:
034Motorsport - Corporate Logo
ES#:
4583476
Mfg#:
034-110-9004
In Stock
$117.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Unitronic Performance Software - With UniCONNECT+ Cable

ES#4464616 - 2.0T-MLB-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#:
4464616
Mfg#:
2.0T-MLB-UC
In Stock
Starting at $814.99 USD
Customize
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Rear Cross Drilled UV Coated Brake Rotors - Pair (330x22)

ES#4491560 - 8k0615601cxKT - Rear Cross Drilled UV Coated Brake Rotors - Pair (330x22) - Features Brembo's special UV paint treatment that guarantees superior corrosion resistance. - Brembo - Audi

Features Brembo's special UV paint treatment that guarantees superior corrosion resistance. 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Brembo - Corporate Logo
ES#:
4491560
Mfg#:
8K0615601CXKT
In Stock
$289.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Audi B8 S4 / A4 S-Line Pre-facelift Front Lip & Gloss Black Grille Accent Set

ES#4751228 - 027962ECS01EBKT - Audi B8 S4 / A4 S-Line Pre-facelift Front Lip & Gloss Black Grille Accent Set - Upgrade your exterior styling! - Enthusiast Bundles - Audi

Upgrade your exterior styling! Don't See A Bundle You Want - Give Us A Call Or Chat - We Will Make One!
Fits Pre-Facelift sedan models with S-Line(S4) front bumpers up to the 2012 model year

Brand:
Enthusiast Bundles - Corporate Logo
ES#:
4751228
Mfg#:
027962ECS01EBKT
In Stock
ON SALE! SAVE 26%
$497.98

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

$369.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Ultimate Short Throw Shifter Kit

ES#4304757 - B8014A1 - Ultimate Short Throw Shifter Kit - The ONLY short throw that drastically reduces throw length, slop, and flex under load. Includes a Short Shift Clamp and Billet Shifter Mounting Plate with upgraded billet slider bushings. - JXB Performance - Audi

The ONLY short throw that drastically reduces throw length, slop, and flex under load. Includes a Short Shift Clamp and Billet Shifter Mounting Plate with upgraded billet slider bushings. For manual transmissions only.

Brand:
JXB Performance - Corporate Logo
ES#:
4304757
Mfg#:
B8014A1
In Stock
$269.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Resonator Delete Kit

ES#4830681 - CTS-EXH-TP-0011 - Resonator Delete Kit - Installing this part allows for a subtle exhaust sound increase on your factory exhaust - CTS - Audi

Installing this part allows for a subtle exhaust sound increase on your factory exhaust

Brand:
CTS - Corporate Logo
ES#:
4830681
Mfg#:
CTS-EXH-TP-0011
Back Ordered
Auto Notify
ON SALE! SAVE 10%
$179.99

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

$161.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

2.0T FSI/TSI Stainless / Inconel Valve Kit

ES#3981079 - 109 1002K - 2.0T FSI/TSI Stainless / Inconel Valve Kit - Complete set includes 8 stainless intake valves, 8 inconel exhaust valves, and 32 single groove keepers - Techtonics Tuning - Audi Volkswagen

Complete set includes 8 stainless intake valves, 8 inconel exhaust valves, and 32 single groove keepers

Brand:
Techtonics Tuning - Corporate Logo
ES#:
3981079
Mfg#:
109 1002K
In Stock
$669.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Harmonic Damper Crankshaft Pulley

ES#2784492 - 551201 - Harmonic Damper Crankshaft Pulley - Internally balanced harmonic damper - Fluidampr - Audi Volkswagen

Internally balanced harmonic damper

Brand:
Fluidampr - Corporate Logo
ES#:
2784492
Mfg#:
551201
In Stock at Vendor
$501.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Carbon Fiber Mirror Cap Set - Audi B6/B7/8P/C6

ES#2804800 - 010253ECS01KT - Carbon Fiber Mirror Cap Set - Audi B6/B7/8P/C6 - Upgrade your exterior look - ECS - Audi

Upgrade your exterior look 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2804800
Mfg#:
010253ECS01KT
In Stock
ON SALE!
$344.99

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

$333.90 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Audi B9 Carbon Fiber Antenna Cover

ES#3468626 - 024985ECS01 - Audi B9 Carbon Fiber Antenna Cover - Add a unique, lightweight look to your B9 - ECS - Audi

Add a unique, lightweight look to your B9 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3468626
Mfg#:
024985ECS01
In Stock
ON SALE! SAVE 20%
$100.99

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

$80.79 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ECS Wheel Spacers - 20mm (Pair)

ES#2167462 - 002411ECS03A20KT - ECS Wheel Spacers - 20mm (Pair) - Add some style with these wheel spacers - ECS - Audi BMW Porsche

Add some style with these wheel spacers 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2167462
Mfg#:
002411ECS03A20KT
In Stock
ON SALE! SAVE 15%
$140.99

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

$119.84 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ECS Tuning Tunnel Street Shield Aluminum Skid Plate Kit

ES#3610307 - 023780ecs02KT - ECS Tuning Tunnel Street Shield Aluminum Skid Plate Kit - Protect your vehicle's tunnel and improve aerodynamics - ECS - Audi

Protect your vehicle's tunnel and improve aerodynamics 10X Entries For Our 25th Anniversary Sweepstakes!
Fits Manual and DSG Transmissions

Brand:
ECS - Corporate Logo
ES#:
3610307
Mfg#:
023780ECS02KT
In Stock
ON SALE! SAVE 10%
$334.00

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

$300.60 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Bilstein B14 PSS Suspension System

ES#2984056 - 47-169289 - Bilstein B14 PSS Suspension System - Height adjustable suspension system with performance valving and application specific, progressive rate coil springs. World-famous Bilstein quality with a limited lifetime warranty! - Bilstein - Audi

Height adjustable suspension system with performance valving and application specific, progressive rate coil springs. World-famous Bilstein quality with a limited lifetime warranty! 2X Entries For Our 25th Anniversary Sweepstakes!
Lowers 30-60 mm front, 20-50mm rear

Brand:
Bilstein - Corporate Logo
ES#:
2984056
Mfg#:
47-169289
In Stock
$1299.00 USD
Free Shipping

Track Density Line Transmission Mount

ES#2952011 - 034-509-4001td - Track Density Line Transmission Mount - Increase performance and durability without sacrificing comfort - 034Motorsport - Audi

Increase performance and durability without sacrificing comfort

Brand:
034Motorsport - Corporate Logo
ES#:
2952011
Mfg#:
034-509-4001TD
In Stock
$118.00 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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