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Audi B5 S4 2.7T Performance Engine Parts

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ES#2847752 - FMDV008MS - 008 Premium Diverter Valve - Matte Silver - Smaller, tougher and tuneable - Forge - Audi Volkswagen Porsche

Smaller, tougher and tuneable affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
2 required

Brand:
Forge - Corporate Logo
ES#:
2847752
Mfg#:
FMDV008MS
Back Ordered
ON SALE! SAVE 10%
$180.00

This product was last offered at the strikethrough price on
07-01-2026

$162.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3195184 - FB102/01 - Performance Engine Air Filter - High-Flow cotton gauze filter designed to be a performer, while lasting a lifetime - BMC - Audi BMW

High-Flow cotton gauze filter designed to be a performer, while lasting a lifetime affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
BMC - Corporate Logo
ES#:
3195184
Mfg#:
FB102/01
In Stock at Vendor
$80.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4368638 - SN0-8CV-BRD - High Flow Water-Methanol Check Valve - 4AN Fittings - Added protection for your WMI setup - SnowPerformance - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Added protection for your WMI setup affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
SnowPerformance - Corporate Logo
ES#:
4368638
Mfg#:
SN0-8CV-BRD
In Stock at Vendor
$31.99 USD
Free Shipping
on orders $49 and up
ES#4492417 - SN0-N0300 - Water/Methanol Nozzle - 3GPH - Snow Performance Hyper-Sonic water-methanol injection nozzle - SnowPerformance - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Snow Performance Hyper-Sonic water-methanol injection nozzle affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
SnowPerformance - Corporate Logo
ES#:
4492417
Mfg#:
SN0-N0300
In Stock at Vendor
$31.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#1832445 - FMDVWO34C - Blow Off Valve - Atmospheric - 34mm weld on dual piston atmospheric blow off valve for custom installs - Forge - Audi Volkswagen

34mm weld on dual piston atmospheric blow off valve for custom installs affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Forge - Corporate Logo
ES#:
1832445
Mfg#:
FMDVWO34C
Back Ordered
ON SALE! SAVE 27%
$216.99

This product was last offered at the strikethrough price on
07-01-2026

$157.95 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2826214 - 40016 - Snow Performance 7 Gallon Reservoir - incl. brackets/check valve/tubing - SnowPerformance - Audi BMW Volkswagen Mercedes Benz MINI Porsche

incl. brackets/check valve/tubing affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
SnowPerformance - Corporate Logo
ES#:
2826214
Mfg#:
40016
In Stock at Vendor
$156.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2794454 - IEVTVA1 - Valve Guide - Priced Each - Upgrade to new bronze alloy valve guides - Integrated Engineering - Audi Volkswagen

Upgrade to new bronze alloy valve guides affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Integrated Engineering - Corporate Logo
ES#:
2794454
Mfg#:
IEVTVA1
Back Ordered
ON SALE! SAVE 14%
$10.99

This product was last offered at the strikethrough price on
06-25-2026

$9.44 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3514866 - FSB-CPI - FSB WMI Controller - V3 For Charge Pipe Injection (CPI) - Allows your JB4 to control a WMI pump and solenoid for dynamic progressive flow mapping! - Burger Motorsports - Audi BMW Volkswagen Mercedes Benz MINI

Allows your JB4 to control a WMI pump and solenoid for dynamic progressive flow mapping! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For use in setups where charge pipe injection is being utilized.

Brand:
Burger Motorsports - Corporate Logo
ES#:
3514866
Mfg#:
FSB-CPI
Ships on Jul 21, 2026
$150.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4715239 - BMS-WMI-SOL - BMS Water/Methanol Injection (WMI) Solenoid W/ Filter - High flow WMI solenoid with inline 40 micron filter - Burger Motorsports - Audi BMW Volkswagen Mercedes Benz MINI Porsche

High flow WMI solenoid with inline 40 micron filter affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Burger Motorsports - Corporate Logo
ES#:
4715239
Mfg#:
BMS-WMI-SOL
Ships on Jul 21, 2026
$75.00 USD
Free Shipping
on orders $49 and up
ES#4735623 - SPR-A2095 - 5v Intake Valve spring / OD 20.60mm/ CB: 23.0 mm / Max lift 12.1mm / Chrome Silicon - Supertech - Audi Volkswagen

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Supertech - Corporate Logo
ES#:
4735623
Mfg#:
SPR-A2095
In Stock
Limited Qty Sale
$12.99

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

$11.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4046113 - RS6UDPFBO - Downpipe Flange For RS6 or RS6-R Turbos - Pair (Bolt On) - This is a universal flange that will allow you to run RS6 style turbos (with OEM RS6 turbine bolt patterns) on your current K03-K04 flanged downpipes. Just bolt these flanges to the back of your turbos! - JH Motorsports  - Audi

This is a universal flange that will allow you to run RS6 style turbos (with OEM RS6 turbine bolt patterns) on your current K03-K04 flanged downpipes. Just bolt these flanges to the back of your turbos! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
JH Motorsports  - Corporate Logo
ES#:
4046113
Mfg#:
RS6UDPFBO
Ships in 10 Business Days
$140.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4701656 - POW-082-85 - Polyurethane Front Snub Engine Mount - Black (Track) - Reduce driveline lash with a full polyurethane mount - Verkline - Audi Volkswagen

Reduce driveline lash with a full polyurethane mount affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Verkline - Corporate Logo
ES#:
4701656
Mfg#:
POW-082-85
In Stock at Vendor
$35.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3524645 - 034-106-7021 - Billet Fuel Rail Spacer - Priced Each - For spacing out 1.8T and 2.7T fuel rail when using longer than stock injectors - 034Motorsport - Audi Volkswagen

For spacing out 1.8T and 2.7T fuel rail when using longer than stock injectors affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
3524645
Mfg#:
034-106-7021
Ships in 2 Business Days
ON SALE! SAVE 10%
$6.00

This product was last offered at the strikethrough price on
06-28-2026

$5.40 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3022273 - PSSS-ZIP - 14" Stainless Steel Locking Zip Tie - Priced Each - Secures items under the hood and resists rust - Prosport Performance - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Secures items under the hood and resists rust affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Prosport Performance - Corporate Logo
ES#:
3022273
Mfg#:
PSSS-ZIP
In Stock
$1.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4715254 - BMS-WMI-IL - Water/Methanol Injection Hose - 20' - Replacement WMI Water Injection Hose - Burger Motorsports - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Replacement WMI Water Injection Hose affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Burger Motorsports - Corporate Logo
ES#:
4715254
Mfg#:
BMS-WMI-IL
In Stock
$31.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4304145 - 034-145-Z039 - Rebuild Kit For Billet Diverter Valve  - Complete rebuild kit for 034MotorSport Billet Aluminum Diverter Valve - 034Motorsport - Audi Volkswagen

Complete rebuild kit for 034MotorSport Billet Aluminum Diverter Valve affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
2 required

Brand:
034Motorsport - Corporate Logo
ES#:
4304145
Mfg#:
034-145-Z039
In Stock
ON SALE! SAVE 10%
$10.00

This product was last offered at the strikethrough price on
06-28-2026

$9.00 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.

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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