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Audi C5 A6 Quattro 4.2 Performance Parts & Upgrades

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ECS Wheel Spacers - 15mm (Pair)

ES#250709 - 002403ECS03A15KT - ECS Wheel Spacers - 15mm (Pair) - Exclusively built for your 57.1mm centerbore VW/Audi - ECS - Audi Volkswagen

Exclusively built for your 57.1mm centerbore VW/Audi 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
250709
Mfg#:
002403ECS03A15KT
In Stock
ON SALE! SAVE 20%
$131.99

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

$105.59 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Conical Seat Stud Conversion Kit

ES#2804053 - 001467ECS01KT2 - 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 20mm spacers only

Brand:
ECS - Corporate Logo
ES#:
2804053
Mfg#:
001467ECS01KT2
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

ECS Performance Ignition Coil - Priced Each

ES#4846108 - 056059LA08 - ECS Performance Ignition Coil - Priced Each - Increased energy output over OE coils for a stronger, more consistent spark! - ECS - Audi Volkswagen

Increased energy output over OE coils for a stronger, more consistent spark! 10X Entries For Our 25th Anniversary Sweepstakes!
For Vehicles with Engine Codes ART and AWN (Bolt-In Style Ignition Coils)

Brand:
ECS - Corporate Logo
ES#:
4846108
Mfg#:
056059LA08
In Stock
ON SALE! SAVE 15%
$35.99

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

$30.59 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Density Line Upper Control Arm Kit

ES#3184738 - 034-401-1003 - Density Line Upper Control Arm Kit - Refresh your front end with 034Motorsport's front upper control arm kit - 034Motorsport - Audi

Refresh your front end with 034Motorsport's front upper control arm kit

Brand:
034Motorsport - Corporate Logo
ES#:
3184738
Mfg#:
034-401-1003
In Stock
$193.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ECS Wheel Spacer & Bolt Kit - 5mm With Black Ball Seat Bolts

ES#2748183 - ECS10154KTWB1 - ECS Wheel Spacer & Bolt Kit - 5mm With Black Ball 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!
Please measure your hub protrusion to ensure it will still make contact with the center of the wheel. See

Brand:
ECS - Corporate Logo
ES#:
2748183
Mfg#:
ECS10154KTWB1
In Stock
ON SALE! SAVE 25%
$126.99

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

$95.24 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ECS 18Z 6-Piston Performance Brake Caliper - Pair

ES#4845288 - 056430LA01 - ECS 18Z 6-Piston Performance Brake Caliper - Pair - Enhance braking performance & complete your big brake kit! Direct replacement for OEM Porsche 18Z (95535142122, 95535142222). - ECS - Audi Volkswagen Porsche

Enhance braking performance & complete your big brake kit! Direct replacement for OEM Porsche 18Z (95535142122, 95535142222). 10X Entries For Our 25th Anniversary Sweepstakes!
For Vehicles Equipped with ECS Stage 5 Front Big Brake Kit (ES#1896)

Brand:
ECS - Corporate Logo
ES#:
4845288
Mfg#:
056430LA01
In Stock
ON SALE! SAVE 20%
$866.99

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

$693.59 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

034Motorsport Wheel Spacer Pair - 10mm

ES#3618560 - 034-604-7001 - 034Motorsport Wheel Spacer Pair - 10mm - Designed to fit most Audi & Volkswagen vehicles with a 57.1mm center bore and 5x112mm wheel bolt patterns - 034Motorsport - Audi Volkswagen

Designed to fit most Audi & Volkswagen vehicles with a 57.1mm center bore and 5x112mm wheel bolt patterns

Brand:
034Motorsport - Corporate Logo
ES#:
3618560
Mfg#:
034-604-7001
In Stock
$89.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ECS Wheel Spacer & Bolt Kit - 17.5mm With Black Ball Seat Bolts

ES#2748195 - ECS10158KTWB1 - ECS Wheel Spacer & Bolt Kit - 17.5mm With Black Ball 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 OEM wheels or wheels that require ball seat wheel bolts

Brand:
ECS - Corporate Logo
ES#:
2748195
Mfg#:
ECS10158KTWB1
In Stock
ON SALE! SAVE 25%
$169.99

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

$127.49 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Ball Seat Locking Wheel Bolt Kit

ES#2795753 - 003901ECS45BB - Ball Seat Locking Wheel Bolt Kit - Black zinc coated wheel lock bolts made specifically for OE wheels. M14x1.5x45mm - ECS - Audi Volkswagen

Black zinc coated wheel lock bolts made specifically for OE wheels. M14x1.5x45mm 10X Entries For Our 25th Anniversary Sweepstakes!
For use with 15-17.5mm spacers

Brand:
ECS - Corporate Logo
ES#:
2795753
Mfg#:
003901ECS45BB
In Stock
ON SALE! SAVE 25%
$82.99

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

$62.24 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ECS Wheel Spacers - 5mm (Pair)

ES#250706 - 002403ECS01A05KT - ECS Wheel Spacers - 5mm (Pair) - Exclusively built for your 57.1mm centerbore VW/Audi - ECS - Audi Volkswagen

Exclusively built for your 57.1mm centerbore VW/Audi 10X Entries For Our 25th Anniversary Sweepstakes!
Please measure your hub protrusion to ensure it will still make contact with the center of the wheel. See

Brand:
ECS - Corporate Logo
ES#:
250706
Mfg#:
002403ECS01A05KT
In Stock
ON SALE! SAVE 25%
$89.99

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

$67.49 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Ball Seat Locking Wheel Bolt Kit

ES#4745663 - 003901ECS40BB - Ball Seat Locking Wheel Bolt Kit - Black zinc coated wheel lock bolts made specifically for OE wheels. M14x1.5x40mm - ECS - Audi Volkswagen

Black zinc coated wheel lock bolts made specifically for OE wheels. M14x1.5x40mm 10X Entries For Our 25th Anniversary Sweepstakes!
For use with 10-12.5mm spacers

Brand:
ECS - Corporate Logo
ES#:
4745663
Mfg#:
003901ECS40BB
In Stock
ON SALE! SAVE 25%
$72.99

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

$54.74 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ECS Wheel Spacer & Bolt Kit - 20mm With Black Conical Seat Bolts

ES#2748198 - ECS10159KTWBC1 - ECS Wheel Spacer & Bolt Kit - 20mm 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#:
2748198
Mfg#:
ECS10159KTWBC1
In Stock
ON SALE!
$176.99

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

$168.14 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Adjustable Fuel Pressure Regulator

ES#5271 - 001564ECS01 - Adjustable Fuel Pressure Regulator - Works as a replacement for most Bosch fuel pressure regulators. Adjustable from 25psi - 75psi - ECS - Audi Volkswagen

Works as a replacement for most Bosch fuel pressure regulators. Adjustable from 25psi - 75psi 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
5271
Mfg#:
001564ECS01
In Stock
ON SALE! SAVE 15%
$229.99

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

$195.49 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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