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Audi B5 Performance Parts & Upgrades

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Conical Seat Stud Conversion Kit

ES#2804054 - 001467ECS01KT3 - Conical Seat Stud Conversion Kit - Make wheel changes faster and easier - ECS - Audi Volkswagen

Make wheel changes faster and easier 10X Entries For Our 25th Anniversary Sweepstakes!
For use with conical seat wheels and up to 10mm spacers only

Brand:
ECS - Corporate Logo
ES#:
2804054
Mfg#:
001467ECS01KT3
Back Ordered
Auto Notify
ON SALE! SAVE 10%
$201.99

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

$181.79 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Carbon Fiber RS4 Y-Pipe

ES#2972858 - 034-108-5000 - Carbon Fiber RS4 Y-Pipe - Features high-quality carbon fiber with perfect fitment and optimal flow - 034Motorsport - Audi

Features high-quality carbon fiber with perfect fitment and optimal flow

Brand:
034Motorsport - Corporate Logo
ES#:
2972858
Mfg#:
034-108-5000
Ships in 9 Business Days
Auto Notify
$647.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

440cc Fuel Injectors - Set Of Six

ES#1895511 - 0280155968 - 440cc Fuel Injectors - Set Of Six - A drop-in injector commonly referred to as 'Green Giants' - Bosch - Audi

A drop-in injector commonly referred to as 'Green Giants' 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Bosch - Corporate Logo
ES#:
1895511
Mfg#:
0280155968
In Stock
$251.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Audi 2.7T F21 Hybrid Turbochargers

ES#2840951 - f21bt - Audi 2.7T F21 Hybrid Turbochargers - Complete bolt on Turbo upgrade including turbo inlet pipes - FrankenTurbo - Audi

Complete bolt on Turbo upgrade including turbo inlet pipes

Brand:
FrankenTurbo - Corporate Logo
ES#:
2840951
Mfg#:
F21BT
Ships on Sep 4, 2026
$1999.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Density Line Motor Mount Kit - Street Density

ES#2893870 - 034-509-0007KT - Density Line Motor Mount Kit - Street Density - Void-free and fluid-free, eliminating the slop associated with the factory mounts - 034Motorsport - Audi Volkswagen

Void-free and fluid-free, eliminating the slop associated with the factory mounts

Brand:
034Motorsport - Corporate Logo
ES#:
2893870
Mfg#:
034-509-0007KT
In Stock
$256.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

2.7T Silicone Boost Hose Kit - Black

ES#2800108 - 003558ECS01AKT - 2.7T Silicone Boost Hose Kit - Black - Add a better flowing, stronger set of hoses to your vehicle and keep it running strong. - ECS - Audi

Add a better flowing, stronger set of hoses to your vehicle and keep it running strong. 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2800108
Mfg#:
003558ECS01AKT
In Stock
ON SALE! SAVE 25%
$379.99

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

$284.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Performance Rear Differential Mount - Audi B5 A4/S4

ES#2730494 - 003248ECS01A - Performance Rear Differential Mount - Audi B5 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#:
2730494
Mfg#:
003248ECS01A
In Stock
ON SALE! SAVE 25%
$243.99

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

$182.99 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 For Our 25th Anniversary Sweepstakes!
Manual Transmission B5 A4/S4

Brand:
ECS - Corporate Logo
ES#:
4609176
Mfg#:
012158LA01KT
In Stock
ON SALE! SAVE 25%
$302.99

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

$227.24 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

JE Performance Piston Set

ES#4338074 - JE-18T-242880 - JE Performance Piston Set - Includes rings, wire locks, and wrist pins - 81mm bore (stock), 9.25:1 CR, 86.4mm stroke (stock) - JE Piston - Audi Volkswagen

Includes rings, wire locks, and wrist pins - 81mm bore (stock), 9.25:1 CR, 86.4mm stroke (stock) *For use with 20mm wrist pin connecting rods*

Brand:
JE Piston - Corporate Logo
ES#:
4338074
Mfg#:
JE-18T-242880
Ships on Aug 7, 2026
$899.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ECS Wheel Spacer & Bolt Kit - 15mm With Black Conical Seat Bolts

ES#2748194 - ECS10157KTWBC1 - ECS Wheel Spacer & Bolt Kit - 15mm With Black Conical Seat Bolts - Includes everything you need to install spacers on two wheels - ECS - Audi Volkswagen

Includes everything you need to install spacers on two wheels 10X Entries For Our 25th Anniversary Sweepstakes!
Fits most aftermarket wheels that require conical seat wheel bolts

Brand:
ECS - Corporate Logo
ES#:
2748194
Mfg#:
ECS10157KTWBC1
In Stock
ON SALE! SAVE 15%
$164.99

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

$140.24 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Ball Seat Stud Conversion Kit

ES#2804052 - 001467ECS01KT1 - Ball Seat Stud Conversion Kit - Make wheel changes faster and easier - ECS - Audi Volkswagen

Make wheel changes faster and easier 10X Entries For Our 25th Anniversary Sweepstakes!
For use with ball seat wheels and up to 20mm spacers only

Brand:
ECS - Corporate Logo
ES#:
2804052
Mfg#:
001467ECS01KT1
In Stock
ON SALE!
$201.99

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

$191.89 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Audi B5 S4/A4 Trunk Spoiler - Gloss Black

ES#4159609 - 007721LA01 - Audi B5 S4/A4 Trunk Spoiler - Gloss Black - Add some aggressive styling to your Audi! - ECS - Audi

Add some aggressive styling to your Audi! 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4159609
Mfg#:
007721LA01
In Stock
ON SALE! SAVE 20%
$223.99

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

$179.19 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Performance Parts & Upgrades

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