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Audi B6 S4 V8 Performance Parts & Upgrades

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ECS Wheel Spacers - 20mm (Pair)

ES#250711 - 002403ECS03A20KT - ECS Wheel Spacers - 20mm (Pair) - Exclusively built for your 57.1mm centerbore VW/Audi - ECS - Audi Volkswagen

Exclusively built for your 57.1mm centerbore VW/Audi affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
250711
Mfg#:
002403ECS03A20KT
In Stock
ON SALE! SAVE 10%
$140.99

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

$126.89 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Heavy Duty Rubber Rear Shock Mount & Installation Kit

ES#4821250 - 049327LA01KT - Heavy Duty Rubber Rear Shock Mount & Installation Kit - Enhance longevity and improve your Audi's handling with our in-house designed HD rubber shock mount! - ECS - Audi Volkswagen

Enhance longevity and improve your Audi's handling with our in-house designed HD rubber shock mount! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4821250
Mfg#:
049327LA01KT
In Stock
ON SALE! SAVE 25%
$137.99

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

$103.16 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ECS Performance Ignition Coil - Priced Each

ES#4846107 - 056059LA07 - 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! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4846107
Mfg#:
056059LA07
Ships on Aug 19, 2026
Auto Notify
ON SALE! SAVE 20%
$35.99

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

$28.79 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Stage 4 Extreme Clutch Kit

Designed for extreme power that needs to be put to the wheels. Conservatively rated at 600+ ft/lbs. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Includes single mass flywheel

Brand:
South Bend Clutch - Corporate Logo
ES#:
3106525
Mfg#:
K70398FSSXKT
Ships in 1 Business Day
$2343.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

EMD Wheel Spacer & Bolt Kit - 10mm With Ball Seat Bolts

ES#4042990 - EMD-SPACER10571B - EMD Wheel Spacer & Bolt Kit - 10mm With Ball Seat Bolts - Includes everything you need to install spacers on two wheels - Emmanuele Design - Audi Volkswagen

Includes everything you need to install spacers on two wheels affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Fits OEM wheels or wheels that require ball seat wheel bolts

Brand:
Emmanuele Design - Corporate Logo
ES#:
4042990
Mfg#:
EMD-SPACER10571B
Ships in 1 Business Day
$110.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Forged Narrow Superlite 6R Front Brake Kit - 12.88"

ES#3701618 - 140-14487-R - Forged Narrow Superlite 6R Front Brake Kit - 12.88" - Featuring red 6R six piston caliper and 12.88" GT slotted rotors - Delivers the ultimate combination for braking power and style! - Wilwood - Audi

Featuring red 6R six piston caliper and 12.88" GT slotted rotors - Delivers the ultimate combination for braking power and style! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Wilwood - Corporate Logo
ES#:
3701618
Mfg#:
140-14487-R
In Stock at Vendor
$2217.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Front Axle Delete Plug Set - Audi B5/B6/B7 - M16 Thread

ES#4375715 - 012417LA01 - Front Axle Delete Plug Set - Audi B5/B6/B7 - M16 Thread - Easily allows the removal of front axles when converting your B5/B6/B7 to RWD (rear wheel drive) from Quattro - ECS - Audi

Easily allows the removal of front axles when converting your B5/B6/B7 to RWD (rear wheel drive) from Quattro affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
From VIN 8D-1-050001, split is in the 2001 model year

Brand:
ECS - Corporate Logo
ES#:
4375715
Mfg#:
012417LA01
In Stock
ON SALE! SAVE 25%
$133.99

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

$100.49 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front Big Brake Kit - Stage 2 - Cross Drilled & Slotted Rotors (345x30)

ES#2952039 - 014366ecs02kt - Front Big Brake Kit - Stage 2 - Cross Drilled & Slotted Rotors (345x30) - Upgrade your brake system to the 4-piston Brembo Q5 calipers. Includes ECS V5 brake rotors. - ECS - Audi

Upgrade your brake system to the 4-piston Brembo Q5 calipers. Includes ECS V5 brake rotors. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2952039
Mfg#:
014366ECS02KT
Ships in 5 Business Days
$2203.11

This product was last offered at the strikethrough price on
06-23-2026

$2184.39 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Billet Engine Oil Dipstick - Black anodized

ES#2960431 - 009352ECS01-02 - Billet Engine Oil Dipstick - Black anodized - A more durable and aesthetically pleasing addition to your engine bay - ECS - Audi

A more durable and aesthetically pleasing addition to your engine bay affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2960431
Mfg#:
009352ECS01-02
In Stock
ON SALE! SAVE 25%
$103.99

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

$77.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear Exact-Fit Stainless Steel Brake Lines

ES#3449971 - 024686ECS02 - Rear Exact-Fit Stainless Steel Brake Lines - Rear set of DOT-compliant lines for an improved pedal feel - ECS - Audi Volkswagen

Rear set of DOT-compliant lines for an improved pedal feel affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3449971
Mfg#:
024686ECS02
In Stock
ON SALE!
$95.99

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

$93.11 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

V1 Series Coilover System

ES#3020359 - 10210065 - V1 Series Coilover System - The best balance between sporty driving and comfort - KW Suspension - Audi

The best balance between sporty driving and comfort affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Fits cabriolet and avant models only.
For avant and convertible models only. Range of lowering is 0.4-1.5" in the front and rear.

Brand:
KW Suspension - Corporate Logo
ES#:
3020359
Mfg#:
10210065
Ships in 4 Business Days
$2094.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Stage 3 Endurance Clutch Kit

ES#3106524 - k70398fsstzKT - Stage 3 Endurance Clutch Kit - Designed for dedicated track cars. Conservatively rated at 480ft/lbs. - South Bend Clutch - Audi

Designed for dedicated track cars. Conservatively rated at 480ft/lbs. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Includes single mass flywheel

Brand:
South Bend Clutch - Corporate Logo
ES#:
3106524
Mfg#:
K70398FSSTZKT
Ships in 1 Business Day
$2083.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Density Line Front Upper Strut Mount - Pair

ES#3622332 - 034-601-1002-tKT - Density Line Front Upper Strut Mount - Pair - 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 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
3622332
Mfg#:
034-601-1002-TKT
In Stock
ON SALE! SAVE 10%
$90.00

This product was last offered at the strikethrough price on
06-28-2026

$81.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Forged Narrow Superlite 6R Front Brake Kit - 12.88"

ES#3701616 - 140-14487-D - Forged Narrow Superlite 6R Front Brake Kit - 12.88" - Featuring black 6R six piston caliper and 12.88" GT drilled & slotted rotors - Delivers the ultimate combination for braking power and style! - Wilwood - Audi

Featuring black 6R six piston caliper and 12.88" GT drilled & slotted rotors - Delivers the ultimate combination for braking power and style! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Wilwood - Corporate Logo
ES#:
3701616
Mfg#:
140-14487-D
Ships in 10 Business Days
$2015.99 USD

B6 S4 Muffler Delete Kit - With 4.0" Chrome Tips

ES#4660245 - 042002LA01KT2 - B6 S4 Muffler Delete Kit - With 4.0" Chrome Tips - Add an aggressive exhaust note to your B6 S4 so you can hear that V8 roar! - ECS - Audi

Add an aggressive exhaust note to your B6 S4 so you can hear that V8 roar! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4660245
Mfg#:
042002LA01KT2
Ships in 4 Business Days
ON SALE! SAVE 15%
$463.99

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

$394.36 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Rear Differential Carrier Mount Bushing Insert Kit

ES#3132752 - 018327ECS01 - Rear Differential Carrier Mount Bushing Insert Kit - Decrease differential slop for better drivetrain response! - ECS - Audi

Decrease differential slop for better drivetrain response! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3132752
Mfg#:
018327ECS01
Ships on Aug 17, 2026
Auto Notify
ON SALE! SAVE 25%
$113.99

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

$85.49 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

More About Performance Parts & Upgrades

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