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Audi S4 Performance Engine Parts

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ES#4418873 - IESOVZ12 - Stage 2 IE Performance ECU Tune - Includes Stage 1 TCU Tune & POWERlink Cable - Average gain of 138 horsepower and 178 lb-ft of torque on 91 Octane with full bolts-ons - Integrated Engineering - Audi

Average gain of 138 horsepower and 178 lb-ft of torque on 91 Octane with full bolts-ons affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!
Perform tune in minutes from the comfort of your own driveway! Only available for purchase in the United States and Canada.
Requires downpipe, intake, and intercooler upgrades.

Brand:
Integrated Engineering - Corporate Logo
ES#:
4418873
Mfg#:
IESOVZ12
In Stock
$1178.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3170829 - 007344ECS01KT2 -  Supercharger Inlet Kit - Silicone - Audi B8 S4/S5 3.0T - Wire reinforced silicone smooths the intake tract & hinders collapsing. The ultimate in durability! - ECS - Audi
ECS Tuning recommends this product.

Wire reinforced silicone smooths the intake tract & hinders collapsing. The ultimate in durability! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes! USE CODE ECS20 IN CART FOR BEST PRICE

Brand:
ECS - Corporate Logo
ES#:
3170829
Mfg#:
007344ECS01KT2
In Stock
$167.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#261427 - 80204 - Water Wetter Coolant Additive - 12oz - Reduces coolant temperatures by as much as 30*F - Redline - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Reduces coolant temperatures by as much as 30*F affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Redline - Corporate Logo
ES#:
261427
Mfg#:
80204
In Stock
$15.99 USD
Free Shipping
on orders $49 and up
ES#4460789 - MS100207 - APR High Pressure Fuel Pump - 2.9T & 3.0T EA839 - Upgrade your direct injection high pressure fuel pump for dramatically more fuel volume needed on high powered applications. - APR - Audi Porsche

Upgrade your direct injection high pressure fuel pump for dramatically more fuel volume needed on high powered applications. 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#:
4460789
Mfg#:
MS100207
Back Ordered
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
06-12-2026

$1449.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4708493 - IEEXCK6 - IE ProCore Performance Cast Downpipe - B9 S4/S5 - Check-Engine Light free! An emissions-friendly approach to exhaust upgrades! - Integrated Engineering - Audi

Check-Engine Light free! An emissions-friendly approach to exhaust upgrades! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Integrated Engineering - Corporate Logo
ES#:
4708493
Mfg#:
IEEXCK6
Ships in 4 Business Days
$2874.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4043186 - IEBAVJ1C -  IE 3.0T Supercharger Pulley Upgrade (Press-Fit) - Increases charger RPM by 10% - Higher boost levels equals more power! - Integrated Engineering - Audi Porsche

Increases charger RPM by 10% - Higher boost levels equals more power! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Integrated Engineering - Corporate Logo
ES#:
4043186
Mfg#:
IEBAVJ1C
In Stock
$220.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#1073 - 0280160575sj - Fuel Pressure Regulator - 4 Bar - Commonly used in performance applications - Bosch - Audi Volkswagen

Commonly used in performance applications affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Bosch - Corporate Logo
ES#:
1073
Mfg#:
0280160575SJ
In Stock
$52.99

This product was last offered at the strikethrough price on
02-26-2026

$45.74 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3219160 - MS100128 - APR 3.0 TFSI Ultracharger System  - Dramatically increases horsepower and torque, and maximizes the power potential of the 3.0 TFSI - APR - Audi

Dramatically increases horsepower and torque, and maximizes the power potential of the 3.0 TFSI 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!
APR’s Ultracharger ECU Upgrade is included for those who currently have an APR Stage 2 ECU Upgrade. APR

Brand:
APR - Corporate Logo
ES#:
3219160
Mfg#:
MS100128
Ships in 4 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.

$1037.99

This product was last offered at the strikethrough price on
06-12-2026

$921.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3604607 - SPRK-AUD27T-DR - Performance Valve Spring/Retainer Kit - Higher exhaust spring seat pressure - High performance kit includes intake/exhaust valve springs, spring seats, and retainers - Supertech - Audi

High performance kit includes intake/exhaust valve springs, spring seats, and retainers affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Supertech - Corporate Logo
ES#:
3604607
Mfg#:
SPRK-AUD27T-DR
Ships in 1 Business Day
$785.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4046111 - RS6RSTK - JHM RS6-RS Turbo Kit for 2.7T - Introducing the RS6-RS turbochargers for your 2.7T from JHMotorsports! These are the most unique and budget-friendly, custom RS6 based turbochargers offered to date for the 2.7T engine! - JH Motorsports  - Audi

Introducing the RS6-RS turbochargers for your 2.7T from JHMotorsports! These are the most unique and budget-friendly, custom RS6 based turbochargers offered to date for the 2.7T engine! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
*This is a custom installation procedure - Turbos only - Does not include couplers, clamps, inlets, bolt-up downpipe flange or hardware. See description

Brand:
JH Motorsports  - Corporate Logo
ES#:
4046111
Mfg#:
RS6RSTK
Ships in 10 Business Days
$2699.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2836833 - 000931ecs02aKT -  Supercharger Inlet Kit - Carbon Fiber - Audi B8 S4/S5 3.0T - Replace the accordion throttle body hose with a smooth carbon fiber tube - ECS - Audi

Replace the accordion throttle body hose with a smooth carbon fiber tube affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes! USE CODE ECS20 IN CART FOR BEST PRICE

Brand:
ECS - Corporate Logo
ES#:
2836833
Mfg#:
000931ECS02AKT
In Stock
$252.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4745487 - TS-0223-1279 - KOMPACT EM BOV VR18 Plum Back - Seamlessly install a Kompact EM Valve without the need for adaptors, hoses, or additional assembly. - TurboSmart - Audi

Seamlessly install a Kompact EM Valve without the need for adaptors, hoses, or additional assembly. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
TurboSmart - Corporate Logo
ES#:
4745487
Mfg#:
TS-0223-1279
In Stock
10% off MSRP

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

$309.99

This product was last offered at the strikethrough price on
06-12-2026

$278.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3508359 - SSXAU725 - HJS Tuning 2.5" High-Flow ECE Downpipes - Featuring HJS Tuning 200cpsi ECE-approved sports cat - Fits with OE and Milltek cat-back systems. - Milltek Sport - Audi

Featuring HJS Tuning 200cpsi ECE-approved sports cat - Fits with OE and Milltek cat-back systems. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Milltek Sport - Corporate Logo
ES#:
3508359
Mfg#:
SSXAU725
Ships in 3 Business Days
$5244.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4005444 - 034-145-Z045  -  3.0 TFSI Supercharger Crank Pulley Upgrade - 179mm - Increase supercharger rotational speed to provide more boost to your engine - 034Motorsport - Audi

Increase supercharger rotational speed to provide more boost to your engine affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
*To be used with Stage 2 software - Stage 2+ software necessary if used in conjunction with a supercharger pulley upgrade*

Brand:
034Motorsport - Corporate Logo
ES#:
4005444
Mfg#:
034-145-Z045
In Stock
$500.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3706798 - iesocgj2tcu - Pro IE Performance ECU Tune - Includes TCU Tune & POWERlink Cable - Average gain of 121 horsepower and 92 lb-ft of torque on 91 Octane - Integrated Engineering - Audi

Average gain of 121 horsepower and 92 lb-ft of torque on 91 Octane affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!
Perform tune in minutes from the comfort of your own driveway! Only available for purchase in the United States and Canada.
For vehicles with DSG transmission only

Brand:
Integrated Engineering - Corporate Logo
ES#:
3706798
Mfg#:
IESOCGJ2TCU
In Stock
$1248.99 USD
Free Shipping
ES#3545247 - 023796ECS04 - Audi B9 S4/S5 3.0T Kohlefaser Luft-Technik Intake System - Enhance your engine's performance with gains up to 16 Wheel Horsepower and 15 foot pounds of torque with our ECS Carbon Fiber Cold Air Intake - ECS - Audi

Enhance your engine's performance with gains up to 16 Wheel Horsepower and 15 foot pounds of torque with our ECS Carbon Fiber Cold Air Intake affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes! USE CODE ECS20 IN CART FOR BEST PRICE

Brand:
ECS - Corporate Logo
ES#:
3545247
Mfg#:
023796ECS04
In Stock
$998.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

More About Performance Engine Parts

Our name says it all. That's why ECS Tuning is dedicated to providing our customers with the broadest possible assortment of engine tuning options at a range of prices and options to fit any budget. Start small and grow your car into something special with performance engine upgrades from a company that has tuning in its name and its blood.

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.

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