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Audi S4 Performance Engine & Drivetrain Parts

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Stage 2+ Clutch Kit

Offers more holding power with a full faced, multi-friction clutch disc - Holds up to 545 ft/lbs torque

Brand:
Spec Clutches - Corporate Logo
ES#:
3090840
Mfg#:
SA863H
Ships in 3 Business Days
$839.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Lightweight Steel Flywheel (19lbs)

ES#2637201 - FW050SF - Lightweight Steel Flywheel (19lbs) - Unleash hidden power by reducing rotating mass with this single mass flywheel - Clutch Masters - Audi

Unleash hidden power by reducing rotating mass with this single mass flywheel

Brand:
Clutch Masters - Corporate Logo
ES#:
2637201
Mfg#:
FW050SF
Ships in 7 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.

$984.99

This product was last offered at the strikethrough price on
07-23-2026

$836.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Supertech Stainless Intake Valve Kit

ES#3647480 - ST-AIVN-1106SKT1 - Supertech Stainless Intake Valve Kit - +1mm oversized valve head diameter, single groove keeper setup for high RPM use - Includes Supertech valves, single groove keepers and IE valve seals - Assembled By ECS - Audi

+1mm oversized valve head diameter, single groove keeper setup for high RPM use - Includes Supertech valves, single groove keepers and IE valve seals 10X Entries For Our 25th Anniversary Sweepstakes!
+1mm oversized valves & singe groove keeper setup - Requires machine work to cylinder head

Brand:
Assembled By ECS - Corporate Logo
ES#:
3647480
Mfg#:
ST-AIVN-1106SKT1
Back Ordered
$818.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

X34 Carbon Fiber Cold Air Intake System

ES#3988146 - 034-108-1013 - X34 Carbon Fiber Cold Air Intake System - Delivers improved power, sound, and acceleration to B9 Audi S4/S5 owners in a clean OEM+ package - 034Motorsport - Audi

Delivers improved power, sound, and acceleration to B9 Audi S4/S5 owners in a clean OEM+ package

Brand:
034Motorsport - Corporate Logo
ES#:
3988146
Mfg#:
034-108-1013
Ships in 2 Business Days
$908.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

CTS Street Sport Engine Mount Kit

ES#4140455 - cts-em-b8-50dKT - CTS Street Sport Engine Mount Kit - 50 Durometer rubber construction - Set of two mounts for left and right sides - CTS - Audi

50 Durometer rubber construction - Set of two mounts for left and right sides

Brand:
CTS - Corporate Logo
ES#:
4140455
Mfg#:
CTS-EM-B8-50DKT
Back Ordered
Auto Notify
$399.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Maestro Tuning Suite - With Powertap Air Flash Tool

ES#3234533 - ED-MT-2.7TAPBKT - Maestro Tuning Suite - With Powertap Air Flash Tool - Ideal for shops and enthusiasts looking to recalibrate their vehicles for modified hardware - Eurodyne - Audi

Ideal for shops and enthusiasts looking to recalibrate their vehicles for modified hardware

Brand:
Eurodyne - Corporate Logo
ES#:
3234533
Mfg#:
ED-MT-2.7TAPBKT
In Stock
$799.95 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

RaceChip GTS Black With App Control

ES#4339360 - 917366 - RaceChip GTS Black With App Control - Get up to +66 hp and +52 lb-ft through a safe and easy to use app-controlled tuning module from RaceChip - Race Chip - Audi

Get up to +66 hp and +52 lb-ft through a safe and easy to use app-controlled tuning module from RaceChip

Brand:
Race Chip - Corporate Logo
ES#:
4339360
Mfg#:
917366
Ships in 3 Business Days
$799.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

RaceChip GTS Black With App Control

ES#4339048 - 904526 - RaceChip GTS Black With App Control - Get up to +41 hp and +74 through a safe and easy to use app-controlled tuning module from RaceChip - Race Chip - Audi

Get up to +41 hp and +74 through a safe and easy to use app-controlled tuning module from RaceChip

Brand:
Race Chip - Corporate Logo
ES#:
4339048
Mfg#:
904526
Ships in 3 Business Days
$799.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Stage 3 Clutch Kit

ES#2570128 - SA863 - Stage 3 Clutch Kit - Features a 6 puck, rigid hub disc with a torque rating of 620 ft/lbs - Spec Clutches - Audi

Features a 6 puck, rigid hub disc with a torque rating of 620 ft/lbs To be used with a OEM Dual Mass Flywheel.

Brand:
Spec Clutches - Corporate Logo
ES#:
2570128
Mfg#:
SA863
Ships in 3 Business Days
$799.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

JHM Front Mount Intercooler (FMIC) Kit - Black Couplers

ES#4046061 - FMICB5S4-BLACK - JHM Front Mount Intercooler (FMIC) Kit - Black Couplers - Tested and ran in JHM's record setting B5 S4 - Reduces charge temperatures and increases power - Proven real world performer! - JH Motorsports - Audi

Tested and ran in JHM's record setting B5 S4 - Reduces charge temperatures and increases power - Proven real world performer!

Brand:
JH Motorsports - Corporate Logo
ES#:
4046061
Mfg#:
FMICB5S4-BLACK
Ships in 10 Business Days
$789.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Luft-Technik Intake Air Scoop - Audi B8 A4/A5/S4/S5

ES#3220796 - 017429ECS01 - Luft-Technik Intake Air Scoop - Audi B8 A4/A5/S4/S5 - Extends farther down behind the grille to direct more air to the intake system - ECS - Audi

Extends farther down behind the grille to direct more air to the intake system 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3220796
Mfg#:
017429ECS01
In Stock
ON SALE! SAVE 56%
$216.99

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

$95.79 USD
Free Shipping

2.0T Coil Pack Conversion Kit - Anodized Black Plates with APR Red Coil Packs

ES#4428745 - 0026862ECSKT - 2.0T Coil Pack Conversion Kit - Anodized Black Plates with APR Red Coil Packs - Unload your ICM's and update your 2.7T ignition system! - ECS - Audi

Unload your ICM's and update your 2.7T ignition system! 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4428745
Mfg#:
0026862ECSKT
In Stock
ON SALE!
$866.99

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

$785.75 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

FX350 Clutch Kit - Stage 3+

ES#2828983 - 02031HDFF - FX350 Clutch Kit - Stage 3+ - Fiber Tough lined, rigid hub clutch disc with heavy duty pressure plate, Rated for 440ft/lbs. - Clutch Masters - Audi

Fiber Tough lined, rigid hub clutch disc with heavy duty pressure plate, Rated for 440ft/lbs.

Brand:
Clutch Masters - Corporate Logo
ES#:
2828983
Mfg#:
02031HDFF
Ships in 7 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.

$922.99

This product was last offered at the strikethrough price on
07-23-2026

$784.99 USD
Free Shipping

Stage 4 FX400 Clutch Kit

ES#2828973 - 02029HDCL - Stage 4 FX400 Clutch Kit - Featuring the Power Plus I pressure plate paired with a full-face ceramic disc - 170% increased holding capacity - Clutch Masters - Audi

Featuring the Power Plus I pressure plate paired with a full-face ceramic disc - 170% increased holding capacity Recommended to be used with Clutch Masters steel (FW-029-SF) or aluminum (FW-029-AL) flywheels

Brand:
Clutch Masters - Corporate Logo
ES#:
2828973
Mfg#:
02029HDCL
In Stock at Vendor
15% off MSRP

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

$922.99

This product was last offered at the strikethrough price on
07-23-2026

$784.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Stage 3+ FX350 Clutch Kit

ES#2828974 - 02029HDFF - Stage 3+ FX350 Clutch Kit - Features the Power Plus I Pressure Plate with Clutch Masters New Formula Button disc - 110% increased holding capacity - Clutch Masters - Audi

Features the Power Plus I Pressure Plate with Clutch Masters New Formula Button disc - 110% increased holding capacity Recommended to be used with Clutch Masters steel (FW-029-SF) or aluminum (FW-029-AL) flywheels

Brand:
Clutch Masters - Corporate Logo
ES#:
2828974
Mfg#:
02029HDFF
Ships in 7 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.

$922.99

This product was last offered at the strikethrough price on
07-23-2026

$784.99 USD
Free Shipping

Stage 3 FX300 Clutch Kit

ES#2828975 - 02029HDTZ - Stage 3 FX300 Clutch Kit - Features the Power Plus I Pressure Plate with a Steel Back Segmented Kevlar disc - 110% increased holding capacity - Clutch Masters - Audi

Features the Power Plus I Pressure Plate with a Steel Back Segmented Kevlar disc - 110% increased holding capacity Recommended to be used with Clutch Masters steel (FW-029-SF) or aluminum (FW-029-AL) flywheels

Brand:
Clutch Masters - Corporate Logo
ES#:
2828975
Mfg#:
02029HDTZ
Ships in 7 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.

$922.99

This product was last offered at the strikethrough price on
07-23-2026

$784.99 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

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

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