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Audi S4 Performance Engine Parts

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PCV Breather Line Kit - Billet Fittings

ES#5516610 - TGK-0311-03 - PCV Breather Line Kit - Billet Fittings - Completely eliminates these vulnerabilities with precision-engineered components designed for sustained high-performance operation. - TGK Motorsport - Audi

Completely eliminates these vulnerabilities with precision-engineered components designed for sustained high-performance operation. Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
TGK Motorsport - Corporate Logo
ES#:
5516610
Mfg#:
TGK-0311-03
Ships in 6 Business Days
$349.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Pro Series Main Stud Set

ES#4780217 - WAG-P201050810.B - Pro Series Main Stud Set - When running big power, the OE studs simply won't cut it! - Wagner Tuning - Audi

When running big power, the OE studs simply won't cut it! Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Wagner Tuning - Corporate Logo
ES#:
4780217
Mfg#:
WAG-P201050810.B
Ships in 2 Business Days
$349.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

360cc Injectors & Fuel Rail Spacer Kit

ES#5071 - FI36-6-KIT - 360cc Injectors & Fuel Rail Spacer Kit - Includes 6 injectors with billet spacers & hardware for installation - Assembled By ECS - Audi

Includes 6 injectors with billet spacers & hardware for installation 10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Assembled By ECS - Corporate Logo
ES#:
5071
Mfg#:
FI36-6-KIT
In Stock
$346.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Supercharger Reduction Pulley Upgrade

ES#3220459 - FMSCPS53T - Supercharger Reduction Pulley Upgrade - Contains a Supercharger Reduction Pulley and drive belt for the Audi 3.0T models - Forge - Audi Porsche

Contains a Supercharger Reduction Pulley and drive belt for the Audi 3.0T models Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Forge - Corporate Logo
ES#:
3220459
Mfg#:
FMSCPS53T
Ships on Nov 13, 2026
$346.99 USD
Free Shipping
on orders $49 and up

ECS Performance Engine Mount Kit - Audi B5 S4

ES#2708159 - 000805ECS01AKT - ECS Performance Engine Mount Kit - Audi B5 S4 - Performance engine mounts to increase drivetrain rigidity - ECS - Audi

Performance engine mounts to increase drivetrain rigidity 10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
ECS - Corporate Logo
ES#:
2708159
Mfg#:
000805ECS01AKT
In Stock
ON SALE!
$358.99

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

$341.04 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Turbosmart Gen-V Race Port BOV - Blue

ES#4007245 - TS-0204-1131 - Turbosmart Gen-V Race Port BOV - Blue - The Race Port is famous for being an amazingly small and light BOV for turbocharged competition level engines - TurboSmart - Audi Volkswagen

The Race Port is famous for being an amazingly small and light BOV for turbocharged competition level engines Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
*General use blow off valve for custom big turbo applications - Not a direct fit valve*

Brand:
TurboSmart - Corporate Logo
ES#:
4007245
Mfg#:
TS-0204-1131
In Stock at Vendor
$335.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Silicone Throttle Body Boot - Red

ES#2954074 - 034-112-6007-RED - Silicone Throttle Body Boot - Red - Replaces the troublesome and weak "Y" boot - Includes clamps - 034Motorsport - Audi

Replaces the troublesome and weak "Y" boot - Includes clamps 2X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
034Motorsport - Corporate Logo
ES#:
2954074
Mfg#:
034-112-6007-RED
Back Ordered
$111.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Performance Engine Air Filter

ES#3195252 - FB533/08-01 - Performance Engine Air Filter - High-Flow cotton gauze filter designed to be a performer, while lasting a lifetime - BMC - Audi

High-Flow cotton gauze filter designed to be a performer, while lasting a lifetime Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
BMC - Corporate Logo
ES#:
3195252
Mfg#:
FB533/08-01
In Stock at Vendor
$108.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Tial MVS External Wastegate - V-banded 38mm - Black

ES#4033239 - TIL-WGT-022BK-AL - Tial MVS External Wastegate - V-banded 38mm - Black - Tial's new MV-S (V38) 38mm v-band external wastegate is the ultimate compact external wastegate solution - Tial - Audi Volkswagen

Tial's new MV-S (V38) 38mm v-band external wastegate is the ultimate compact external wastegate solution Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
*General use wastegate for custom, externally gated big turbo applications - Not a direct fit wastegate*

Brand:
Tial - Corporate Logo
ES#:
4033239
Mfg#:
TIL-WGT-022BK-AL
Back Ordered
$325.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

High Flow Water Methanol Check Valve (Nylon Line)

ES#3469706 - sn0-8cv - High Flow Water Methanol Check Valve (Nylon Line) - Custom made with 100% methanol resistant stainless steel spring and EPDM seals ensuring zero corrosion even with high concentrations of methanol. - SnowPerformance - Audi BMW Volkswagen MINI

Custom made with 100% methanol resistant stainless steel spring and EPDM seals ensuring zero corrosion even with high concentrations of methanol. Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
SnowPerformance - Corporate Logo
ES#:
3469706
Mfg#:
SN0-8CV
Ships in 6 Business Days
$31.99 USD
Free Shipping
on orders $49 and up

Supertech Stainless Intake Valve - 1.8T/2.7T - Set Of 12

ES#4689798 - sptAIVN-1103S-12 - Supertech Stainless Intake Valve - 1.8T/2.7T - Set Of 12 - Stock sized valve head diameter, single groove keeper setup for high RPM use - Supertech - Audi Volkswagen

Stock sized valve head diameter, single groove keeper setup for high RPM use Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Supertech - Corporate Logo
ES#:
4689798
Mfg#:
SPTAIVN-1103S-12
In Stock at Vendor
20% off MSRP

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

$394.99

This product was last offered at the strikethrough price on
10-25-2026

$315.99 USD
Free Shipping
on orders $49 and up

3.0 TFSI Stage II Supercharger Drive Pulley Installation Kit

ES#2209707 - MS100025 - 3.0 TFSI Stage II Supercharger Drive Pulley Installation Kit - Install kit used for APR MS100035 - APR - Audi Volkswagen Porsche

Install kit used for APR MS100035 Call In Or Chat For Best Price! Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
To be used for APR Supercharger Drive Pulley Upgrade MS100135

Brand:
APR - Corporate Logo
ES#:
2209707
Mfg#:
MS100025
Ships in 5 Business Days
ON SALE! SAVE 10%
$349.99

This product was last offered at the strikethrough price on
09-28-2026

$314.95 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

APR Supercharger Crank Pulley Upgrade (187mm)

ES#3219162 - MS100133 - APR Supercharger Crank Pulley Upgrade (187mm) - Increases diameter of factory pulley from ~162mm to ~187mm, which in turn spins the supercharger ~15.4% faster! - APR - Audi Porsche

Increases diameter of factory pulley from ~162mm to ~187mm, which in turn spins the supercharger ~15.4% faster! Call In Or Chat For Best Price! Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
APR Stage II software is required to run any upgraded Pulley configuration and is sold separately - Pleas

Brand:
APR - Corporate Logo
ES#:
3219162
Mfg#:
MS100133
Ships in 5 Business Days
ON SALE! SAVE 10%
$349.99

This product was last offered at the strikethrough price on
09-28-2026

$314.95 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Sprint Booster V3 Power Converter

ES#4220122 - 77-16409 - Sprint Booster V3 Power Converter - Improve your Audi's throttle response and overall drivability with this Sprint Booster Power Converter. - Sprint Booster - Audi

Improve your Audi's throttle response and overall drivability with this Sprint Booster Power Converter. Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Sprint Booster - Corporate Logo
ES#:
4220122
Mfg#:
77-16409
Back Ordered
19% off MSRP

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

$389.99

This product was last offered at the strikethrough price on
10-25-2026

$314.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fluidampr Overdrive Ring - 187mm

ES#3557475 - 651201cr187KT - Fluidampr Overdrive Ring - 187mm - Includes 1310mm belt for use with 57mm or 63mm supercharger pulleys - iABED Industries - Audi Porsche

Includes 1310mm belt for use with 57mm or 63mm supercharger pulleys Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Only for us with Fluidampr 651201C.

Brand:
iABED Industries - Corporate Logo
ES#:
3557475
Mfg#:
651201CR187KT
Back Ordered
$305.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

CTS Turbo Supercharger Crank Pulley Upgrade - 180mm

ES#3438174 - CTS-HW-266-180 - CTS Turbo Supercharger Crank Pulley Upgrade - 180mm - Larger diameter pulley increases the speed at which the supercharger spins, increasing the boost pressure output - CTS - Audi Porsche

Larger diameter pulley increases the speed at which the supercharger spins, increasing the boost pressure output Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
*NOTE: This kit must be used with appropriate "Stage 2" performance software.

Brand:
CTS - Corporate Logo
ES#:
3438174
Mfg#:
CTS-HW-266-180
Special Order: No Guaranteed ETA
ON SALE! SAVE 20%
$379.99

This product was last offered at the strikethrough price on
09-29-2026

$303.99 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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