Shop Our Clearance Sale - Up To 80% Off FREE SHIPPING on Orders $49+ *exclusions apply

Menu

Call Us330-331-2003 ChatLive Chat Text Us!
0 Shopping Cart
Your Vehicle

No Vehicle selected
Please select your vehicle below.

    • Audi
    • BMW
    • Mercedes Benz
    • MINI
    • Porsche
    • Volkswagen

Saved Vehicles

My Vehicles
You currently have no stored vehicles.

Recent Vehicles

Recent Vehicles Manage Vehicles

You currently have no recent vehicles.

We'll automatically keep fully selected vehicles here for your convenience.

Call Us330-331-2003 ChatLive Chat Text Us!
Track My Order View Order History Submit a Return Contact Us Wholesale Information Lifetime Replacement Returns and Warranty Information
0
Call Us330-331-2003 ChatLive Chat Text Us!
Track My Order View Order History Submit a Return Contact Us Wholesale Information Lifetime Replacement Returns and Warranty Information
Cancel
0
Sales & Specials
Enter Your Vehicle
garage-red
Your Vehicle Please tap 'Select' to pick a vehicle
Your Vehicle Please tap 'Select' to pick a vehicle
Select

Audi S4 Performance Engine & Drivetrain Parts

Sort By
Filter By
Return to Top

Wavetrac Rear Differential

ES#4266266 - 18-309-180WK - Wavetrac Rear Differential - Upgrade your vehicles differential! - Wavetrac - Audi

Upgrade your vehicles differential!

Brand:
Wavetrac - Corporate Logo
ES#:
4266266
Mfg#:
18-309-180WK
Special Order: No Guaranteed ETA
$1495.00 USD
Free Shipping
on orders $49 and up

Complete Density Line Performance Motor Mount Kit

ES#3183556 - 034-509-0008KT1 - Complete Density Line Performance Motor Mount Kit - Includes 034Motorsport Street Density mounts, active mount resistor bypass, and ECS performance Snub Mount - Assembled By ECS - Audi

Includes 034Motorsport Street Density mounts, active mount resistor bypass, and ECS performance Snub Mount 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
3183556
Mfg#:
034-509-0008KT1
In Stock
$370.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Stage 4 Clutch Kit W/ Flywheel

ES#2602129 - 02029HDC4KT - Stage 4 Clutch Kit W/ Flywheel - Featuring a 4 puck ceramic disc and 12lb aluminum flywheel - Assembled By ECS - Audi

Featuring a 4 puck ceramic disc and 12lb aluminum flywheel 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2602129
Mfg#:
02029HDC4KT
Ships in 1-2 days
$1490.99

This product was last offered at the strikethrough price on
07-06-2026

$1471.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Complete ECS Performance Engine Mount Kit - Audi B5 S4

ES#2723181 - 000805ECS03AKT - Complete ECS Performance Engine Mount Kit - Audi B5 S4 - Includes ECS performance polyurethane engine mount and snub mount - ECS - Audi

Includes ECS performance polyurethane engine mount and snub mount 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2723181
Mfg#:
000805ECS03AKT
In Stock
ON SALE! SAVE 10%
$402.99

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

$362.69 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

APR Carbon Fiber Intake System - Audi B9 S4/S5 3.0T (CI100043)

ES#4464978 - CI100043C3 - APR Carbon Fiber Intake System - Audi B9 S4/S5 3.0T (CI100043) - Looks as great as it performs - APR - Audi

Looks as great as it performs Call In Or Chat For Best Price! 5X Entries For Our 25th Anniversary Sweepstakes!

Brand:
APR - Corporate Logo
ES#:
4464978
Mfg#:
CI100043C3
Ships in 6 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.

$1631.99

This product was last offered at the strikethrough price on
07-22-2026

$1449.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

APR Valve Spring Kit - Priced Per Spring

ES#4690063 - MS100258 - APR Valve Spring Kit - Priced Per Spring - Lighter, stiffer, and supports higher revving! - APR - Audi Volkswagen

Lighter, stiffer, and supports higher revving! Call In Or Chat For Best Price! 5X Entries For Our 25th Anniversary Sweepstakes!

Brand:
APR - Corporate Logo
ES#:
4690063
Mfg#:
MS100258
Ships in 6 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.

$69.99

This product was last offered at the strikethrough price on
07-22-2026

$61.99 USD
Free Shipping

ECS Tuning Universal Catch Can Drain System

ES#3698456 - 003779ECS11 - ECS Tuning Universal Catch Can Drain System - Make draining your ECS or Turner Catch Can simple with this comprehensive kit - ECS - Audi Volkswagen MINI

Make draining your ECS or Turner Catch Can simple with this comprehensive kit 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3698456
Mfg#:
003779ECS11
In Stock
ON SALE! SAVE 25%
$71.99

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

$53.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Performance Front Mount Intercooler

ES#3980512 - FMINT12 - Performance Front Mount Intercooler - Offering a huge 128% increase in frontal area and matching increase in internal volume - Forge - Audi

Offering a huge 128% increase in frontal area and matching increase in internal volume

Brand:
Forge - Corporate Logo
ES#:
3980512
Mfg#:
FMINT12
Ships in 4 Business Days
$1372.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Twin Disc Organic Clutch Kit

Capable of approximately 1110NM (811FT LBS)!

Brand:
The Turbo Engineers - Corporate Logo
ES#:
4766233
Mfg#:
TTE10596
Ships on Aug 10, 2026
$1371.99 USD
Free Shipping
on orders $49 and up

B8/C7 Center Differential And Axle Plug Delete Kit

ES#4508908 - 012535laKT - B8/C7 Center Differential And Axle Plug Delete Kit - A 100% reversible Quattro to RWD kit. - ECS - Audi

A 100% reversible Quattro to RWD kit. 10X Entries For Our 25th Anniversary Sweepstakes!
Please make sure via VIN that your Center Diff part number is 0B2 409 755 L

Brand:
ECS - Corporate Logo
ES#:
4508908
Mfg#:
012535LAKT
Ships on Aug 11, 2026
Auto Notify
ON SALE! SAVE 20%
$569.98

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

$455.98 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Turbosmart Gen-V Race Port BOV - Black

ES#4007248 - TS-0204-1132 - Turbosmart Gen-V Race Port BOV - Black - The Race Port is famous for being an amazingly small and light BOV for turbocharged competition level engines - TurboSmart - Audi Volkswagen

The Race Port is famous for being an amazingly small and light BOV for turbocharged competition level engines *General use blow off valve for custom big turbo applications - Not a direct fit valve*

Brand:
TurboSmart - Corporate Logo
ES#:
4007248
Mfg#:
TS-0204-1132
In Stock
$335.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Carbonio Replacement Filter Element

ES#2592687 - RF100003 - Carbonio Replacement Filter Element - Replacement air filter for APR Carbonio intake systems - APR - Audi

Replacement air filter for APR Carbonio intake systems Call In Or Chat For Best Price! 5X Entries For Our 25th Anniversary Sweepstakes!
CARB certified for sale in all 50 states

Brand:
APR - Corporate Logo
ES#:
2592687
Mfg#:
RF100003
EO#:
d-783-2
In Stock
12% off MSRP

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

$92.99

This product was last offered at the strikethrough price on
07-22-2026

$81.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Lightweight Aluminum Flywheel (23lbs)

ES#2830906 - FW060AL - Lightweight Aluminum Flywheel (23lbs) - Unleash hidden power by reducing rotating mass - Clutch Masters - Audi

Unleash hidden power by reducing rotating mass

Brand:
Clutch Masters - Corporate Logo
ES#:
2830906
Mfg#:
FW060AL
Ships in 8 Business Days
15% off MSRP

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

$1534.99

This product was last offered at the strikethrough price on
07-22-2026

$1304.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Stage 2 Drag Clutch Kit

ES#2725288 - KS4B8HDB - Stage 2 Drag Clutch Kit - Designed for drag or drift cars that see limited street use. Conservatively rated at 500ft/lbs. - South Bend Clutch - Audi

Designed for drag or drift cars that see limited street use. Conservatively rated at 500ft/lbs.

Brand:
South Bend Clutch - Corporate Logo
ES#:
2725288
Mfg#:
KS4B8HDB
Ships in 2 Business Days
$1302.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Silicone Y-Pipe Hose Pair

ES#2864562 - 034-108-3002 - Silicone Y-Pipe Hose Pair - Reinforced high-temp silicone for long life and abuse resistance - 034Motorsport - Audi

Reinforced high-temp silicone for long life and abuse resistance

Brand:
034Motorsport - Corporate Logo
ES#:
2864562
Mfg#:
034-108-3002
In Stock
$158.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

More About Performance Engine & Drivetrain Parts

Worn mounts, bushings, and other drivetrain components rob performance. Replace or upgrade your drivetrain with our extensive catalog of mounts, bushings, clutch kits, and more.

Let us help you find the parts that fit your Audi

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

Terms of Use Privacy Policy ECS Tuning is part of Enthusiast Auto Holdings