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Audi S4 Performance Engine & Drivetrain Parts

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Supertech Inconel Exhaust Valve Kit

ES#3647477 - ST-AEVI-1106SKT1 - Supertech Inconel Exhaust 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!
*Oversized valves require extra machine work to the cylinder head.*

Brand:
Assembled By ECS - Corporate Logo
ES#:
3647477
Mfg#:
ST-AEVI-1106SKT1
Back Ordered
$644.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Ultimate Shift Kit - Audi B8 A4/A5/S5/S5

ES#2834823 - 004113ECS01KT - Ultimate Shift Kit - Audi B8 A4/A5/S5/S5 - Includes the ECS Adjustable Short Throw Shifter paired with BFI's Heavy Weight SCHWARZ Shift Knob - ECS / BFI - Audi

Includes the ECS Adjustable Short Throw Shifter paired with BFI's Heavy Weight SCHWARZ Shift Knob

Brand:
ECS / BFI
ES#:
2834823
Mfg#:
004113ECS01KT
Ships in 8 Business Days
Auto Notify
$636.98 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Stage 3+ Clutch Kit

ES#3090774 - SA603F - Stage 3+ Clutch Kit - Features a full faced, carbon semi-metallic disc with a torque rating of 506 ft/lbs - Spec Clutches - Audi

Features a full faced, carbon semi-metallic disc with a torque rating of 506 ft/lbs

Brand:
Spec Clutches - Corporate Logo
ES#:
3090774
Mfg#:
SA603F
Ships in 3 Business Days
$629.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

AWE ColdFront Reservoir - B8/B8.5 3.0T

ES#4044051 - 4710-11018 - AWE ColdFront Reservoir - B8/B8.5 3.0T - Provides increased coolant capacity for lower coolant temperatures and intake temperatures. - AWE - Audi

Provides increased coolant capacity for lower coolant temperatures and intake temperatures.

Brand:
AWE - Corporate Logo
ES#:
4044051
Mfg#:
4710-11018
In Stock
$625.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

FP34 Fuel Pump Surge Tank - With Pump

ES#3419777 - 034-106-A003 - FP34 Fuel Pump Surge Tank - With Pump - Fully enclosed FP34 fuel pump surge tank with Bosch 044 "Motorsport" fuel pump - 034Motorsport - Audi Volkswagen

Fully enclosed FP34 fuel pump surge tank with Bosch 044 "Motorsport" fuel pump

Brand:
034Motorsport - Corporate Logo
ES#:
3419777
Mfg#:
034-106-A003
Back Ordered
$690.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Lightweight Alternator Pulley - Black

ES#3086 - 001551ECS02A-01 - Lightweight Alternator Pulley - Black - NOT an under drive pulley, reduces rotational mass of stock pulley system. - ECS - Audi

NOT an under drive pulley, reduces rotational mass of stock pulley system. 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3086
Mfg#:
001551ECS02A-01
In Stock
ON SALE!
$96.99

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

$87.96 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

APR Supercharger Drive Pulley Upgrade Kit

ES#3219340 - ms100135KT - APR Supercharger Drive Pulley Upgrade Kit - A healthy bump in horsepower and torque across the entire RPM range - Includes APR drive pulley, APR installation tool, and correct length drive belt - APR - Audi Porsche

A healthy bump in horsepower and torque across the entire RPM range - Includes APR drive pulley, APR installation tool, and correct length drive belt Call In Or Chat For Best Price! 5X Entries For Our 25th Anniversary Sweepstakes!
APR Stage II software is required to run any upgraded Pulley configuration and is sold separately - Vehic

Brand:
APR - Corporate Logo
ES#:
3219340
Mfg#:
MS100135KT
Ships in 5 Business Days
$609.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

CTS Street Sport Engine Mount - Priced Each

ES#4070112 - CTS-EM-B567-50D - CTS Street Sport Engine Mount - Priced Each - 50 Durometer rubber construction - CTS - Audi

50 Durometer rubber construction

Brand:
CTS - Corporate Logo
ES#:
4070112
Mfg#:
CTS-EM-B567-50D
Ships in 7 Business Days
ON SALE! SAVE 20%
$94.99

This product was last offered at the strikethrough price on
07-10-2026

$75.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

APR TCU Upgrade - 8-Speed Tiptronic (AL552 8HP55 ZF8)

ES#4715771 - TCU-AL552 - APR TCU Upgrade - 8-Speed Tiptronic (AL552 8HP55 ZF8) - Optimize the driving experience with performance tuning software for your vehicle's Transmission Control Unit (TCU). - APR - Audi

Optimize the driving experience with performance tuning software for your vehicle's Transmission Control Unit (TCU). Call In Or Chat For Best Price! 5X Entries For Our 25th Anniversary Sweepstakes!
This upgrade requires the vehicle to be dropped off at ECS Tuning's facility in Ohio and picked up the ne

Brand:
APR - Corporate Logo
ES#:
4715771
Mfg#:
TCU-AL552
In Stock
$599.99 USD
This product is lifetime replacement eligible Lifetime Replacement

APR Stage 1 Performance Software - Single Program

ES#2660891 - B8530TSTG1CHPKT - APR Stage 1 Performance Software - Single Program - Gains from 110 HP/89 TQ on 91 octane up to 133 HP/108 TQ on 100 octane - APR - Audi

Gains from 110 HP/89 TQ on 91 octane up to 133 HP/108 TQ on 100 octane Call In Or Chat For Best Price! 5X Entries For Our 25th Anniversary Sweepstakes!
This upgrade must be performed at ECS Tuning's facility in Ohio.
Vehicle must be brought to ECS Tuning for programming

Brand:
APR - Corporate Logo
ES#:
2660891
Mfg#:
B8530TSTG1CHPKT
In Stock
$599.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Turbo Inlet Pipe Adapter Ring For Pure750 Hybrid Turbo

ES#4817973 - IEINCK4-PURE750 - Turbo Inlet Pipe Adapter Ring For Pure750 Hybrid Turbo - Easy install for your Pure750 hybrid turbo upgrade - Integrated Engineering - Audi

Easy install for your Pure750 hybrid turbo upgrade 5X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Integrated Engineering - Corporate Logo
ES#:
4817973
Mfg#:
IEINCK4-PURE750
In Stock
$49.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Burger Motorsports JB4 Tuner

ES#3639972 - JB4-B9-S4S5 - Burger Motorsports JB4 Tuner - This easy to install plug and play tuner attaches to sensors in the engine bay and works with your factory ECU tuning to remap boost, timing, and fueling for optimal performance and reduced turbo lag. - Burger Motorsports - Audi

This easy to install plug and play tuner attaches to sensors in the engine bay and works with your factory ECU tuning to remap boost, timing, and fueling for optimal performance and reduced turbo lag. Not for sale or use in the state of California.

Brand:
Burger Motorsports - Corporate Logo
ES#:
3639972
Mfg#:
JB4-B9-S4S5
Ships on Aug 10, 2026
$599.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

RaceChip XLR Throttle Controller With App Control

ES#4708646 - 999871 - RaceChip XLR Throttle Controller With App Control - Eliminate the delay in throttle response times with a simple XLR addition! Allows for Bluetooth connectivity for easy App based control. - Race Chip - Audi

Eliminate the delay in throttle response times with a simple XLR addition! Allows for Bluetooth connectivity for easy App based control.

Brand:
Race Chip - Corporate Logo
ES#:
4708646
Mfg#:
999871
Ships in 3 Business Days
$299.00 USD
Free Shipping
on orders $49 and up

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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