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Audi B8/B8.5 S5 Quattro V8 4.2L

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Your Vehicle Audi B8/B8.5 S5 Quattro V8 4.2L
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Audi B8/B8.5 S5 Quattro V8 4.2L Performance Parts & Upgrades

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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

Stage 1

Average gain of 20 horsepower and 12 lb-ft of torque affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Tunezilla - Corporate Logo
ES#:
3097354
Mfg#:
FSI-42-V8-350-1
Ships in 7 Business Days
$599.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

GT100 Exhaust Titanium Tips - Quad

ES#3247851 - MSVW374X4 - GT100 Exhaust Titanium Tips - Quad - 100mm GT style exhaust tips for the left and right side of the vehicle - Milltek Sport - Audi Volkswagen

100mm GT style exhaust tips for the left and right side of the vehicle affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Milltek Sport - Corporate Logo
ES#:
3247851
Mfg#:
MSVW374X4
Ships in 3 Business Days
$594.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

EMD Wheel Spacers - 5mm (Pair)

ES#4430359 - EMD-SPACER-5-665 - EMD Wheel Spacers - 5mm (Pair) - Exclusively built for your 66.5mm centerbore VW/Audi - Emmanuele Design - Audi

Exclusively built for your 66.5mm centerbore VW/Audi affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Emmanuele Design - Corporate Logo
ES#:
4430359
Mfg#:
EMD-SPACER-5-665
Ships in 1 Business Day
$40.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

EMD Auto 20mm Wheel Spacers - Pair

ES#4043208 - EMDSPACER20665 - EMD Auto 20mm Wheel Spacers - Pair - Manufactured out of high quality 6061-T6 aluminum, and black anodized for corrosion resistance - 5x112, 66.5 Center Bore - Emmanuele Design - Audi

Manufactured out of high quality 6061-T6 aluminum, and black anodized for corrosion resistance - 5x112, 66.5 Center Bore affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Emmanuele Design - Corporate Logo
ES#:
4043208
Mfg#:
EMDSPACER20665
Ships in 3 Business Days
$70.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear Differential Carrier Mount Insert Kit

ES#2966689 - 034-505-2016 - 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#:
2966689
Mfg#:
034-505-2016
Ships in 2 Business Days
$134.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front Lower Control Arm Kit

ES#3183691 - mrs-au-1911-1912 - Front Lower Control Arm Kit - Includes upgraded lower straight and curved control arms - Megan Racing - Audi

Includes upgraded lower straight and curved control arms affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Megan Racing - Corporate Logo
ES#:
3183691
Mfg#:
MRS-AU-1911-1912
Back Ordered
Auto Notify
$524.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Unitronic Performance Software - Flashed @ ECS

ES#4464758 - 4.2-4V-FSI - Unitronic Performance Software - Flashed @ ECS - Choose the stage that meets your power goals! - Unitronic - Audi Volkswagen

Choose the stage that meets your power goals! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
This tune requires the vehicle to be dropped off at ECS Tuning's facility in Ohio and picked up the next

Brand:
Unitronic - Corporate Logo
ES#:
4464758
Mfg#:
4.2-4V-FSI
In Stock
ON SALE!
Starting at $500.00 USD
Customize
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

6-Rib Alternator Belt Conversion Kit

ES#4046017 - B8S56Rib - 6-Rib Alternator Belt Conversion Kit - Get a grip with this 6 rib kit! - JH Motorsports - Audi

Get a grip with this 6 rib kit! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
JH Motorsports - Corporate Logo
ES#:
4046017
Mfg#:
B8S56RIB
Ships in 10 Business Days
$499.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

DRA Series Trak Spacers - 20mm (1 Pair)

ES#5435760 - 40595666 - DRA Series Trak Spacers - 20mm (1 Pair) - Get that stance that you've been craving with these new spacers - H&R - Audi BMW Porsche

Get that stance that you've been craving with these new spacers affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
H&R - Corporate Logo
ES#:
5435760
Mfg#:
40595666
Ships in 3 Business Days
$249.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Wheel Spacer Kit - 10mm (1 Pair)

ES#3570121 - MS100166 - Wheel Spacer Kit - 10mm (1 Pair) - 10mm spacers to perfectly dial in your stance or clear your big brake kit! - APR - Audi

10mm 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#:
3570121
Mfg#:
MS100166
Ships on Jul 28, 2026
12% off MSRP

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

$138.99

This product was last offered at the strikethrough price on
06-26-2026

$122.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Wheel Spacer Kit - 8mm (1 Pair)

ES#3570120 - MS100165 - Wheel Spacer Kit - 8mm (1 Pair) - 8mm spacers to perfectly dial in your stance or clear your big brake kit! - APR - Audi

8mm 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#:
3570120
Mfg#:
MS100165
Ships in 2 Business Days
11% off MSRP

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

$109.99

This product was last offered at the strikethrough price on
06-26-2026

$97.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

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

ES#2568317 - 6-ECS-024 - Wheel Spacer & Bolt Kit - 20mm With Conical Seat Bolts - Complete kit for two wheels, comes with everything you need to install spacers on your aftermarket wheels - ECS - Audi

Complete kit for two wheels, comes with everything you need to install spacers on your aftermarket wheels affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Fits most aftermarket wheels that use conical seat wheel bolts

Brand:
ECS - Corporate Logo
ES#:
2568317
Mfg#:
6-ECS-024
Ships in 9 Business Days
ON SALE! SAVE 10%
$179.99

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

$161.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front GD Sport Slotted & Dimpled Brake Rotors - Pair (345x30)

ES#2071362 - GD1571 - Front GD Sport Slotted & Dimpled Brake Rotors - Pair (345x30) - Upgrade to a slotted / dimpled rotor for improved braking - EBC - Audi

Upgrade to a slotted / dimpled rotor for improved braking affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
EBC - Corporate Logo
ES#:
2071362
Mfg#:
GD1571
Ships in 1 Business Day
5% off MSRP

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

$505.99

This product was last offered at the strikethrough price on
06-26-2026

$479.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Wheel Spacer Kit - 7mm (1 Pair)

ES#3570119 - MS100164 - Wheel Spacer Kit - 7mm (1 Pair) - 7mm spacers to perfectly dial in your stance or clear your big brake kit! - APR - Audi

7mm 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#:
3570119
Mfg#:
MS100164
Ships in 7 Business Days
11% off MSRP

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

$103.99

This product was last offered at the strikethrough price on
06-26-2026

$92.99 USD
Free Shipping
on orders $49 and up
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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