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Audi A4 Performance Parts & Upgrades

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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
In Stock
$339.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

B5 A4/S4 Manual - Driveshaft Center Support Bearing Carrier

ES#4609176 - 012158la01kt - B5 A4/S4 Manual - Driveshaft Center Support Bearing Carrier - As our beloved B5's age the stock center support bearing starts to wear out causing drivetrain clunk. This upgraded unit keeps the driveshaft firmly in place at all times and its polyurethane construction ensures it will outlast the squishy rubber bushing - ECS - Audi

As our beloved B5's age the stock center support bearing starts to wear out causing drivetrain clunk. This upgraded unit keeps the driveshaft firmly in place at all times and its polyurethane construction ensures it will outlast the squishy rubber bushing 10X Entries Into Our F80 M3 Sweepstakes
Manual Transmission B5 A4/S4

Brand:
ECS - Corporate Logo
ES#:
4609176
Mfg#:
012158LA01KT
Ships on Jan 13, 2027
ON SALE! SAVE 30%
$302.99

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

$212.09 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Density Line Front Upper Strut Mount - Priced Each

ES#2966732 - 034-601-1003-TD - Density Line Front Upper Strut Mount - Priced Each - Approximately twice as stiff as stock, for increased firmness and vehicle control - 034Motorsport - Audi

Approximately twice as stiff as stock, for increased firmness and vehicle control 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
2966732
Mfg#:
034-601-1003-TD
In Stock
$46.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Power Stop Z23 Evolution Sport Front Brake Kit (320mm)

ES#3157360 - K5752 - Power Stop Z23 Evolution Sport Front Brake Kit (320mm) - A performance front axle upgrade featuring precision cross-drilled & slotted rotors, low-dust carbon-fiber ceramic pads, and a premium electronic wear sensor. - Power Stop - Audi

A performance front axle upgrade featuring precision cross-drilled & slotted rotors, low-dust carbon-fiber ceramic pads, and a premium electronic wear sensor.

Brand:
Power Stop - Corporate Logo
ES#:
3157360
Mfg#:
K5752
In Stock
$330.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Street Performance Coilover System - Fixed Damping

ES#4620771 - 29092-2 - Street Performance Coilover System - Fixed Damping - Unrivaled comfort and performance - H&R - Audi

Unrivaled comfort and performance We Price Match - Give Us A Call or Chat!
For Avant models only. Average lowering of 1.0"-2.2"F 1.0"-2.2"R.

Brand:
H&R - Corporate Logo
ES#:
4620771
Mfg#:
29092-2
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.

$2450.00

This product was last offered at the strikethrough price on
11-04-2026

$2205.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

P34 Cold Air Intake System *ROW Models*

ES#4147633 - 034-108-1023 - P34 Cold Air Intake System *ROW Models* - Delivers improved power, sound, and acceleration to B9 Audi A4/Allroad & A5 owners in a clean OEM+ package. - 034Motorsport - Audi

Delivers improved power, sound, and acceleration to B9 Audi A4/Allroad & A5 owners in a clean OEM+ package. 2X Entries Into Our F80 M3 Sweepstakes
*The 034Motorsport P34 Cold Air Intake ROW (Rest of World, i.e. - non-North American region) is only for vehicles with a MAF attached directly to the fac

Brand:
034Motorsport - Corporate Logo
ES#:
4147633
Mfg#:
034-108-1023
Ships in 2 Business Days
$551.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Adjustable Metal Extended Slave Cylinder Kit

ES#4508665 - 8k0721257eKT - Adjustable Metal Extended Slave Cylinder Kit - Improve clutch pedal feel and the push clutch to start issue all at once! - Assembled By ECS - Audi

Improve clutch pedal feel and the push clutch to start issue all at once! 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
4508665
Mfg#:
8K0721257EKT
In Stock
$329.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Rear Cross Drilled Brake Rotors - Pair (330x22)

ES#4141822 - 4h0615601hdKT - Rear Cross Drilled Brake Rotors - Pair (330x22) - Features an Anti-Corrosion coating "Anti-Z" - Zimmermann - Audi

Features an Anti-Corrosion coating "Anti-Z" We Price Match - Give Us A Call or Chat!

Brand:
Zimmermann - Corporate Logo
ES#:
4141822
Mfg#:
4H0615601HDKT
Ships in 1 Business Day
$337.99

This product was last offered at the strikethrough price on
08-03-2026

$328.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Audi B5 A4/S4 Solo-Werks S1 Coilovers

ES#2777310 - s1au004 - Audi B5 A4/S4 Solo-Werks S1 Coilovers - Set your vehicle low and tight for optimal performance - Solo-Werks - Audi

Set your vehicle low and tight for optimal performance Lowering front: 1.5" - 3", rear: 1.5" - 3"

Brand:
Solo-Werks - Corporate Logo
ES#:
2777310
Mfg#:
S1AU004
In Stock
$649.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Clutch Masters FX100 Clutch Kit & Single Mass Flywheel

ES#3971202 - 02390-HD00-SK - Clutch Masters FX100 Clutch Kit & Single Mass Flywheel - Features a Heavy duty pressure plate, Sprung hub Organic clutch disc, and a Steel Single Mass Flywheel. - Clutch Masters - Audi

Features a Heavy duty pressure plate, Sprung hub Organic clutch disc, and a Steel Single Mass Flywheel.

Brand:
Clutch Masters - Corporate Logo
ES#:
3971202
Mfg#:
02390-HD00-SK
Ships in 9 Business Days
$2162.99 USD
Free Shipping

Front Position Rear Differential Mount Insert Kit

ES#2992519 - 008288ECS01 - Front Position Rear Differential Mount Insert Kit - Decrease differential slop for better drivetrain response! - ECS - Audi Porsche

Decrease differential slop for better drivetrain response! 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
2992519
Mfg#:
008288ECS01
In Stock
ON SALE! SAVE 30%
$95.99

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

$67.19 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

380cc Fuel Injectors - Set Of Four

ES#2594193 - BOS380CC4 - 380cc Fuel Injectors - Set Of Four - Larger capacity fuel injector for performance uses. - Bosch - Audi Volkswagen

Larger capacity fuel injector for performance uses. We Price Match - Give Us A Call or Chat!
Not compatible with APR Stage 1+ software

Brand:
Bosch - Corporate Logo
ES#:
2594193
Mfg#:
BOS380CC4
In Stock
$279.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Kohlefaser Luft-Technik Intake System - Audi B7 A4 2.0T

ES#3098720 - 002032ECS02AKT - Kohlefaser Luft-Technik Intake System - Audi B7 A4 2.0T - Engineered for dyno proven performance and show quality looks! - ECS - Audi

Engineered for dyno proven performance and show quality looks! 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
3098720
Mfg#:
002032ECS02AKT
In Stock
ON SALE! SAVE 20%
$667.99

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

$534.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Street Density Line Transmission Mount

ES#2952012 - 034-509-4001sd - Street Density Line Transmission Mount - Increase performance and durability without sacrificing comfort - 034Motorsport - Audi

Increase performance and durability without sacrificing comfort 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
2952012
Mfg#:
034-509-4001SD
In Stock
$116.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Camber Correcting Density Line Control Arm Kit - Front

ES#4159575 - 034-401-1054 - Camber Correcting Density Line Control Arm Kit - Front - Includes lower control arms, upper adjustable control arms, M14 ball joints and all necessary hardware. - 034Motorsport - Audi

Includes lower control arms, upper adjustable control arms, M14 ball joints and all necessary hardware. 2X Entries Into Our F80 M3 Sweepstakes
For vehicles with M14 ball joints

Brand:
034Motorsport - Corporate Logo
ES#:
4159575
Mfg#:
034-401-1054
Ships in 2 Business Days
$1276.00 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. 2X Entries Into Our F80 M3 Sweepstakes

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

More About Performance Parts & Upgrades

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