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Audi S4 Performance Engine & Drivetrain Parts

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Stage 3+ Clutch Kit

ES#2570136 - SA863F - Stage 3+ Clutch Kit - Features a full faced, carbon semi-metallic disc with a torque rating of 689 ft/lbs - Spec Clutches - Audi

Features a full faced, carbon semi-metallic disc with a torque rating of 689 ft/lbs

Brand:
Spec Clutches - Corporate Logo
ES#:
2570136
Mfg#:
SA863F
Ships in 8 Business Days
$949.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

X34 Carbon Fiber Intake Air Duct

ES#3988147 - 034-108-1024 - X34 Carbon Fiber Intake Air Duct - The perfect companion to the 034Motorsport X34 Carbon Fiber Cold Air Intake System - 034Motorsport - Audi

The perfect companion to the 034Motorsport X34 Carbon Fiber Cold Air Intake System 2X Entries Into Our F80 M3 Sweepstakes
*To be used with 034Motorsport X34 Intake System or most aftermarket intakes that utilize the OEM air duct*

Brand:
034Motorsport - Corporate Logo
ES#:
3988147
Mfg#:
034-108-1024
In Stock
$377.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Charge Cooler and Expansion Tank Upgrade Kit

ES#2855732 - FMCCRADS53T - Charge Cooler and Expansion Tank Upgrade Kit - Upgrade your supercharger cooling system - Forge - Audi

Upgrade your supercharger cooling system Fits B8.5 facelift models only (From the 2013 model year)

Brand:
Forge - Corporate Logo
ES#:
2855732
Mfg#:
FMCCRADS53T
Ships in 5 Business Days
$1871.99 USD

APR Carbon Fiber Inlet Pipe for APR Open Intake

ES#4714509 - CI100037-A - APR Carbon Fiber Inlet Pipe for APR Open Intake - Flows 20% better than stock, sounds better, looks better, and perfectly complements your APR open intake system! - APR - Audi

Flows 20% better than stock, sounds better, looks better, and perfectly complements your APR open intake system! Call In Or Chat For Best Price!
Used in conjunction with ES3579697.

Brand:
APR - Corporate Logo
ES#:
4714509
Mfg#:
CI100037-A
EO#:
D-782-8
Ships in 5 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.

$418.99

This product was last offered at the strikethrough price on
09-16-2026

$371.99 USD
Free Shipping

Motorsport TrackSport Engine Mount Pair

ES#2993008 - 034-509-0047 - Motorsport TrackSport Engine Mount Pair - Density line rubber damping to maximize strength and durability - 034Motorsport - Audi

Density line rubber damping to maximize strength and durability 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
2993008
Mfg#:
034-509-0047
Ships in 2 Business Days
$611.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

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 Into Our F80 M3 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
In Stock
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

Stage 2 Endurance Clutch Kit

Designed for track use while still streetable. Conservatively rated at 400ft/lbs. Includes single mass flywheel

Brand:
South Bend Clutch - Corporate Logo
ES#:
3106519
Mfg#:
K70398FHDOFEKT
Ships in 2 Business Days
$1822.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Integrated Engineering 3.0T "Dual Pulley" Power Kit

ES#4351842 - ieppcgj2 - Integrated Engineering 3.0T "Dual Pulley" Power Kit - Turn your Audi B8 S4 or S5 into an all-out street monster with IE's complete Dual Pulley kit! Includes ECU software plus "Dual Pulley" setup - Integrated Engineering - Audi

Turn your Audi B8 S4 or S5 into an all-out street monster with IE's complete Dual Pulley kit! Includes ECU software plus "Dual Pulley" setup Buy Integrated Engineering Software from 9/3/26 - 9/30/26 for a chance to win your Software for FREE!

Fits vehicles with manual transmissions only

Brand:
Integrated Engineering - Corporate Logo
ES#:
4351842
Mfg#:
IEPPCGJ2
In Stock
$1799.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Integrated Engineering 3.0T 207mm Dual Pulley Power Kit

ES#4491710 - IEBAVJ6KT - Integrated Engineering 3.0T 207mm Dual Pulley Power Kit - The one pulley solution for dual pulley power! - Integrated Engineering - Audi

The one pulley solution for dual pulley power! Buy Integrated Engineering Software from 9/3/26 - 9/30/26 for a chance to win your Software for FREE!

Fits vehicles with manual transmissions only

Brand:
Integrated Engineering - Corporate Logo
ES#:
4491710
Mfg#:
IEBAVJ6KT
In Stock
$1776.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Stage 2 Daily Clutch Kit - With Flywheel

ES#3537134 - k70286hdoKT3 - Stage 2 Daily Clutch Kit - With Flywheel - Designed for the daily-driven, weekend track warrior. Conservatively rated at 350ft/lbs. - South Bend Clutch - Audi

Designed for the daily-driven, weekend track warrior. Conservatively rated at 350ft/lbs.

Brand:
South Bend Clutch - Corporate Logo
ES#:
3537134
Mfg#:
K70286HDOKT3
Ships in 2 Business Days
$1755.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Billet R1 Diverter Valve - Pair

ES#4039652 - dv100001KT - Billet R1 Diverter Valve - Pair - Less maintenance, more boost. Kit includes two valves for twin-turbo applications. - APR - Audi Porsche

Less maintenance, more boost. Kit includes two valves for twin-turbo applications. Call In Or Chat For Best Price!

Brand:
APR - Corporate Logo
ES#:
4039652
Mfg#:
DV100001KT
Ships on Oct 8, 2026
$583.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Carbon Fiber Intake System With Inlet

ES#4758920 - UH043-INA - Carbon Fiber Intake System With Inlet - Redefining performance and airflow dynamics with unparalleled precision and style. - Unitronic - Audi

Redefining performance and airflow dynamics with unparalleled precision and style. Tune is recommend for the best performance

Brand:
Unitronic - Corporate Logo
ES#:
4758920
Mfg#:
UH043-INA
Ships in 6 Business Days
$1745.99 USD
Free Shipping
on orders $49 and up

Lightweight Billet Flexplate

ES#4500291 - FP-060AM-HD - Lightweight Billet Flexplate - Prevent your stock flexplate from cracking with this Billet unit! - Clutch Masters - Audi

Prevent your stock flexplate from cracking with this Billet unit!

Brand:
Clutch Masters - Corporate Logo
ES#:
4500291
Mfg#:
FP-060AM-HD
Ships in 6 Business Days
$579.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Performance Kevlar Reinforced Accessory Belt

ES#3677912 - 078903137BL - Performance Kevlar Reinforced Accessory Belt - Our Red Kevlar accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. - ECS - Audi
ECS Tuning recommends this product.

Our Red Kevlar accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
3677912
Mfg#:
078903137BL
Ships in 1 Business Day
$50.99 USD
Free Shipping
on orders $49 and up
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

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Manufacturer names and/or part numbers are used only for identification purposes.

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