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Audi B6 S4 V8 Performance Parts & Upgrades

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ECS Wheel Spacer & Bolt Kit - 8mm With Ball Seat Bolts

ES#251543 - ECS#244KTWBLT - ECS Wheel Spacer & Bolt Kit - 8mm With 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 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Fits OEM wheels or wheels that require ball seat wheel bolts

Brand:
ECS - Corporate Logo
ES#:
251543
Mfg#:
ECS#244KTWBLT
In Stock
ON SALE! SAVE 25%
$134.99

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

$101.24 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Shocks & Struts - Koni Sports (Set Of Four)

ES#2219836 - 8040-1283SPORT - Shocks & Struts - Koni Sports (Set Of Four) - Add the legendary performance of Koni shocks and struts to your Audi - Koni - Audi

Add the legendary performance of Koni shocks and struts to your Audi affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Koni - Corporate Logo
ES#:
2219836
Mfg#:
8040-1283SPORT
In Stock at Vendor
ON SALE! SAVE 20%
$883.99

This product was last offered at the strikethrough price on
02-16-2026

$705.63 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

2-piece Lightweight Rear Rotors (pair)

Shaves 6lbs of unsprung weight from the rear of your car while increasing braking performance. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
JH Motorsports - Corporate Logo
ES#:
4045891
Mfg#:
1022X300X22
Ships in 10 Business Days
$699.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ECS Wheel Spacers - 17.5mm (Pair)

ES#250710 - 002403ECS03A18KT - ECS Wheel Spacers - 17.5mm (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#:
250710
Mfg#:
002403ECS03A18KT
In Stock
ON SALE! SAVE 25%
$154.99

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

$116.24 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

034Motorsport Wheel Spacer Pair - 20mm

ES#3618561 - 034-604-7008 - 034Motorsport Wheel Spacer Pair - 20mm - 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 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
3618561
Mfg#:
034-604-7008
In Stock
ON SALE! SAVE 10%
$125.00

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

$112.50 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Performance Snub Mount With Bracket

ES#3447962 - 034-509-2009 - Performance Snub Mount With Bracket - Greatly reduces unwanted engine movement w/o excess vibration - 034Motorsport - Audi

Greatly reduces unwanted engine movement w/o excess vibration affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
3447962
Mfg#:
034-509-2009
In Stock
ON SALE! SAVE 10%
$125.00

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

$112.50 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ECS Wheel Spacer & Bolt Kit - 6mm With Black Conical Seat Bolts

ES#2748186 - ECS10610KTWBC1 - ECS Wheel Spacer & Bolt Kit - 6mm 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 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 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#:
2748186
Mfg#:
ECS10610KTWBC1
In Stock
ON SALE!
$141.99

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

$134.89 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Rear Differential Carrier Mount Insert Kit

ES#2873006 - 034-505-2015 - Rear Differential Carrier Mount Insert Kit - Installation is very simple, can be performed in minutes, and is completely reversible. - 034Motorsport - Audi

Installation is very simple, can be performed in minutes, and is completely reversible. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
2873006
Mfg#:
034-505-2015
Back Ordered
Auto Notify
ON SALE! SAVE 10%
$123.00

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

$110.70 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Jackal Motorsports Tune - Includes Jackal Tuning Cable & TCU Tune

ES#4907820 - B6-3 - Jackal Motorsports Tune - Includes Jackal Tuning Cable & TCU Tune - Gains from 20-30 WHP on Stage 1 up to 60-70 WHP on Stage 3+ E85 - Jackal Motorsports - Audi

Gains from 20-30 WHP on Stage 1 up to 60-70 WHP on Stage 3+ E85 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with automatic transmission only

Brand:
Jackal Motorsports - Corporate Logo
ES#:
4907820
Mfg#:
B6-3
Ships in 1 Business Day
$655.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

BFI Wheel Spacers - 8mm (Pair)

ES#3575932 - SP204GB - BFI Wheel Spacers - 8mm (Pair) - Exclusively built for your 57.1mm centerbore VW/Audi. Black Anodized - Black Forest Industries - Audi Volkswagen

Exclusively built for your 57.1mm centerbore VW/Audi. Black Anodized affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Black Forest Industries - Corporate Logo
ES#:
3575932
Mfg#:
SP204GB
Ships on Jul 24, 2026
$64.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Wheel Spacer Kit - 12mm (1 Pair)

ES#3570112 - MS100157 - Wheel Spacer Kit - 12mm (1 Pair) - 12mm spacers to perfectly dial in your stance or clear your big brake kit! - APR - Audi Volkswagen

12mm spacers to perfectly dial in your stance or clear your big brake kit! Call In Or Chat For Best Price! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!

Brand:
APR - Corporate Logo
ES#:
3570112
Mfg#:
MS100157
In Stock
11% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$142.99

This product was last offered at the strikethrough price on
07-01-2026

$126.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front Upper Control Arm Bushing Set - Inner - Street

ES#2651917 - PFF3-203x4 - Front Upper Control Arm Bushing Set - Inner - Street - Improves handling and control - Upgrade to a more engaging driving experience - Powerflex - Audi Volkswagen

Improves handling and control - Upgrade to a more engaging driving experience affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Powerflex - Corporate Logo
ES#:
2651917
Mfg#:
PFF3-203X4
In Stock
$126.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

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

ES#2568227 - ECS10154KTWBC - ECS Wheel Spacer & Bolt Kit - 5mm With 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 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 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#:
2568227
Mfg#:
ECS10154KTWBC
In Stock
ON SALE! SAVE 25%
$140.99

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

$105.74 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Rear V5 Drilled & Slotted Brake Rotors - Set (300x22)

ES#4668231 - 8E0615601R-XS - Rear V5 Drilled & Slotted Brake Rotors - Set (300x22) - Precision manufactured for consistent stopping power during high performance driving. Featuring a matte black zinc coating for corrosion protection. - ECS - Audi

Precision manufactured for consistent stopping power during high performance driving. Featuring a matte black zinc coating for corrosion protection. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4668231
Mfg#:
8E0615601R-XS
In Stock
ON SALE!
$321.99

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

$312.32 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

H&R Quick-Safe Stud Conversion Kit

ES#2730962 - Q-SPack45-50 - H&R Quick-Safe Stud Conversion Kit - Set of 20 studs. M14 x 1.5 x 50 - H&R - Audi Volkswagen

Set of 20 studs. M14 x 1.5 x 50 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
H&R - Corporate Logo
ES#:
2730962
Mfg#:
Q-SPACK45-50
Ships in 3 Business Days
$150.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear Sport Shock Absorber - Priced Each

ES#2574594 - 80401283SPORT - Rear Sport Shock Absorber - Priced Each - Adjustable shocks designed to be used with aggressive lowering springs - Koni - Audi

Adjustable shocks designed to be used with aggressive lowering springs affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Koni - Corporate Logo
ES#:
2574594
Mfg#:
80401283SPORT
In Stock at Vendor
ON SALE! SAVE 20%
$188.81

This product was last offered at the strikethrough price on
02-10-2026

$150.64 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.

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

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