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Audi S4 Performance Engine Parts

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Cat-Back Exhaust System - Valvesonic

ES#2827523 - SSXAU406 - Cat-Back Exhaust System - Valvesonic - 2.37" stainless steel with quad 100mm black Cerakote tips - Milltek Sport - Audi

2.37" stainless steel with quad 100mm black Cerakote tips From the 2013 model year

Brand:
Milltek Sport - Corporate Logo
ES#:
2827523
Mfg#:
SSXAU406
Ships in 5 Business Days
$4460.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Street Density Line Transmission Mount - Priced Each

ES#2951985 - 034-509-4046sd - Street Density Line Transmission Mount - Priced Each - Increase performance and durability without sacrificing comfort - 034Motorsport - Audi

Increase performance and durability without sacrificing comfort 2X Entries Into Our F80 M3 Sweepstakes
Fits the left and right side

Brand:
034Motorsport - Corporate Logo
ES#:
2951985
Mfg#:
034-509-4046SD
In Stock
ON SALE! SAVE 30%
$96.00

This product was last offered at the strikethrough price on
05-01-2026

$67.50 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Supercharger Inlet Kit - Carbon Fiber - Audi B8 S4/S5 3.0T

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 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
2836833
Mfg#:
000931ECS02AKT
In Stock
ON SALE! SAVE 15%
$252.99

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

$215.04 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

3.0 TFSI Supercharger Crank Pulley Upgrade - 190mm

ES#4005438 - 034-145-Z042 - 3.0 TFSI Supercharger Crank Pulley Upgrade - 190mm - Increase supercharger rotational speed to provide more boost to your engine - 034Motorsport - Audi

Increase supercharger rotational speed to provide more boost to your engine 2X Entries Into Our F80 M3 Sweepstakes
*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#:
4005438
Mfg#:
034-145-Z042
In Stock
ON SALE! SAVE 15%
$502.00

This product was last offered at the strikethrough price on
08-17-2026

$429.21 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Bottom End Engine Upgrade Package - EA837 3.0T

ES#4845376 - 034-202-D003 - Bottom End Engine Upgrade Package - EA837 3.0T - Provides all of the key components needed to turn your Audi EA837 3.0T Engine into a bulletproof powertrain! - 034Motorsport - Audi

Provides all of the key components needed to turn your Audi EA837 3.0T Engine into a bulletproof powertrain! 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
4845376
Mfg#:
034-202-D003
Ships in 2 Business Days
ON SALE! SAVE 13%
$4891.00

This product was last offered at the strikethrough price on
03-13-2026

$4244.40 USD
Free Shipping

3.0TFSI Supercharger Bleeder Screw Kit

ES#3988579 - 034-145-Z043 - 3.0TFSI Supercharger Bleeder Screw Kit - Replace those failure prone, plastic 3.0 TFSI supercharger bleeder screws with the 034Motorsport 3.0 TFSI Supercharger Bleeder Screw Kit! - 034Motorsport - Audi

Replace those failure prone, plastic 3.0 TFSI supercharger bleeder screws with the 034Motorsport 3.0 TFSI Supercharger Bleeder Screw Kit! 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
3988579
Mfg#:
034-145-Z043
In Stock
ON SALE! SAVE 10%
$60.00

This product was last offered at the strikethrough price on
08-17-2026

$54.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Turbosmart WG45 Gen V Hyper-Gate 45

ES#4643523 - ts-0553-1002 - Turbosmart WG45 Gen V Hyper-Gate 45 - More features, options and performance than any other gate. - TurboSmart - Audi BMW Volkswagen

More features, options and performance than any other gate.

Brand:
TurboSmart - Corporate Logo
ES#:
4643523
Mfg#:
TS-0553-1002
Ships on Sep 11, 2026
10% off MSRP

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

$518.99

This product was last offered at the strikethrough price on
08-25-2026

$467.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

-10AN ORB X 3/4" Hose Barb Fitting Assembly - Priced Each

ES#3187875 - 003779ECS10 - -10AN ORB X 3/4" Hose Barb Fitting Assembly - Priced Each - Universal fitting for ECS Tuning Catch can to use a 3/4" Hose - ECS - Audi BMW Volkswagen MINI

Universal fitting for ECS Tuning Catch can to use a 3/4" Hose 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
3187875
Mfg#:
003779ECS10
In Stock
ON SALE! SAVE 25%
$39.99

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

$29.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cat-Back Exhaust System - Non-Resonated (Louder)

ES#3240938 - SSXAU657 - Cat-Back Exhaust System - Non-Resonated (Louder) - 2.50" stainless steel with quad GT-90 titanium tips - Milltek Sport - Audi

2.50" stainless steel with quad GT-90 titanium tips Fits models without factory rear sports differential

Brand:
Milltek Sport - Corporate Logo
ES#:
3240938
Mfg#:
SSXAU657
Ships in 5 Business Days
$4158.99

This product was last offered at the strikethrough price on
08-17-2026

$4158.02 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

B9 S4/S5/SQ5 3.0T Intercooler kit

ES#4499830 - RA841C100200 - B9 S4/S5/SQ5 3.0T Intercooler kit - Increased volume and surface area, bar and plate cores with end tanks specifically designed to promote even airflow. - REVO - Audi

Increased volume and surface area, bar and plate cores with end tanks specifically designed to promote even airflow.

Brand:
REVO - Corporate Logo
ES#:
4499830
Mfg#:
RA841C100200
Back Ordered
$819.00 USD
This product is lifetime replacement eligible Lifetime Replacement

Cat-Back Exhaust - Non Resonated

2.50" stainless steel with your choice of tip style

Brand:
Milltek Sport - Corporate Logo
ES#:
4164626
Mfg#:
B9NONRESONATED
Ships in 5 Business Days
Starting at $3507.46 USD
Customize
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Supercharger Inlet Kit - Silicone - Audi B8 S4/S5 3.0T

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! 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
3170829
Mfg#:
007344ECS01KT2
In Stock
ON SALE! SAVE 25%
$167.99

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

$125.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

APR 3.0 TFSI Ultracharger System

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!
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
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.

$1068.99

This product was last offered at the strikethrough price on
08-25-2026

$949.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Res-X Resonator Delete Pipe And X-Pipe

ES#4315893 - 034-105-7051 - Res-X Resonator Delete Pipe And X-Pipe - Transform your exhaust note - 034Motorsport - Audi

Transform your exhaust note 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
4315893
Mfg#:
034-105-7051
In Stock
ON SALE! SAVE 14%
$443.00

This product was last offered at the strikethrough price on
08-17-2026

$378.77 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Cat-Back Exhaust - Resonated

2.50" stainless steel with your choice of tip style

Brand:
Milltek Sport - Corporate Logo
ES#:
4164540
Mfg#:
B9RESONATED
Ships in 5 Business Days
Starting at $3463.00 USD
Customize
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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