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Audi S4 Performance Engine Parts

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630cc Fuel Injectors & Fuel Rail Spacer Kit

ES#259223 - 630INJ-6 KIT - 630cc Fuel Injectors & Fuel Rail Spacer Kit - High flow injectors reaching 630cc/minute @ 3 bar. Includes fuel rail spacers - Assembled By ECS - Audi

High flow injectors reaching 630cc/minute @ 3 bar. Includes fuel rail spacers affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
259223
Mfg#:
630INJ-6 KIT
Ships on Oct 29, 2026
ON SALE!
$517.99

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

$506.20 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

BFI 4.2 V8 Complete Replacement Engine Mount Kit - Stage 1

ES#4730403 - EBFI77-KB6-201 - BFI 4.2 V8 Complete Replacement Engine Mount Kit - Stage 1 - Replace your old, tired, hydraulic engine mount with BFI's proprietary bushing and bracket/Cup design - Black Forest Industries - Audi

Replace your old, tired, hydraulic engine mount with BFI's proprietary bushing and bracket/Cup design affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Black Forest Industries - Corporate Logo
ES#:
4730403
Mfg#:
EBFI77-KB6-201
Special Order: No Guaranteed ETA
$504.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water/Methanol Dual Nozzle Upgrade Stainless Steel Braided Line

ES#4212781 - SN0-40040-BRD - Water/Methanol Dual Nozzle Upgrade Stainless Steel Braided Line - Install and additional water/methanol nozzle in any WMI system! - SnowPerformance - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Install and additional water/methanol nozzle in any WMI system! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
SnowPerformance - Corporate Logo
ES#:
4212781
Mfg#:
SN0-40040-BRD
In Stock at Vendor
$62.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

RaceChip RS With App Control

Get up to +55 hp and +43 lb-ft through a safe and easy to use app-controlled tuning module from RaceChip affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Race Chip - Corporate Logo
ES#:
4339358
Mfg#:
917362
Ships in 3 Business Days
$499.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Forge Oil Catch Tank

ES#3691238 - FMCT4 - Forge Oil Catch Tank - Captures harmful contaminants, including oil deposits, unused fuel vapors, and moisture, before they make their way back through to the inlet of the engine. - Forge - Audi

Captures harmful contaminants, including oil deposits, unused fuel vapors, and moisture, before they make their way back through to the inlet of the engine. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Forge - Corporate Logo
ES#:
3691238
Mfg#:
FMCT4
Ships in 3 Business Days
$494.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

IE B9 S4 & S5 Adapter Silicone For IE Turbo Inlet With Stock Airbox

ES#4465495 - IEINCK4-9 - IE B9 S4 & S5 Adapter Silicone For IE Turbo Inlet With Stock Airbox - Adapts IE cast turbo inlet to stock airbox. - Integrated Engineering - Audi

Adapts IE cast turbo inlet to stock airbox. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Integrated Engineering - Corporate Logo
ES#:
4465495
Mfg#:
IEINCK4-9
Ships in 1 Business Day
$43.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Silicone Inlet Hose

ES#2966730 - 034-112-6013 - Silicone Inlet Hose - Upgraded silicone hose from the MAF sensor to the throttle body - 034Motorsport - Audi

Upgraded silicone hose from the MAF sensor to the throttle body affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
2966730
Mfg#:
034-112-6013
In Stock
$120.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Water/Methanol Nozzle - 10GPH

ES#4376610 - SN0-N1000 - Water/Methanol Nozzle - 10GPH - 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#:
4376610
Mfg#:
SN0-N1000
In Stock
$31.99 USD
Free Shipping
on orders $49 and up

Burger Motorsports JB4 Tuner

ES#4213367 - JB4-Audi-3.0TFSI - Burger Motorsports JB4 Tuner - Features CAN-Bus connectivity for more advanced tuning gain up to 45hp/65lb-ft on a stock car - Burger Motorsports - Audi

Features CAN-Bus connectivity for more advanced tuning — gain up to 45hp/65lb-ft on a stock car affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Not for sale or use in the state of California.

Brand:
Burger Motorsports - Corporate Logo
ES#:
4213367
Mfg#:
JB4-AUDI-3.0TFSI
Ships on Jul 8, 2026
$479.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

BFI Stage 2 Engine Mount - Priced Each

ES#3021938 - EBFIB56ES2 - BFI Stage 2 Engine Mount - Priced Each - Keep your engine planted and transfer as much power to the ground as possible - Black Forest Industries - Audi Volkswagen

Keep your engine planted and transfer as much power to the ground as possible affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Black Forest Industries - Corporate Logo
ES#:
3021938
Mfg#:
EBFIB56ES2
Ships on Jul 14, 2026
$234.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Water-Methanol Dual Nozzle Upgrade - Quick-Connect Fittings

ES#4147673 - SN0-40040 - Water-Methanol Dual Nozzle Upgrade - Quick-Connect Fittings - Install and additional water/methanol nozzle in any WMI system! - SnowPerformance - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Install and additional water/methanol nozzle in any WMI system! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
SnowPerformance - Corporate Logo
ES#:
4147673
Mfg#:
SN0-40040
In Stock
$41.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Universal Vortex Breather Catch Can

ES#4020131 - 034-101-4000 - Universal Vortex Breather Catch Can - Sold in a black powdercoated finish. - 034Motorsport - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Sold in a black powdercoated finish. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
4020131
Mfg#:
034-101-4000
Ships in 2 Business Days
$153.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

BFI Stage 1 Engine Mount - Priced Each

ES#3021937 - EBFIB56ES1 - BFI Stage 1 Engine Mount - Priced Each - Keep your engine planted and transfer as much power to the ground as possible - Black Forest Industries - Audi Volkswagen

Keep your engine planted and transfer as much power to the ground as possible affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Black Forest Industries - Corporate Logo
ES#:
3021937
Mfg#:
EBFIB56ES1
Ships in 2 Business Days
$224.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Titanium Exhaust Wrap - 2" X 25'

ES#3022276 - HEA-WRAPKIT-25 - Titanium Exhaust Wrap - 2" X 25' - Designed to handle continuous temperatures up to 1,800F - Prosport Performance - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Designed to handle continuous temperatures up to 1,800°F affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Prosport Performance - Corporate Logo
ES#:
3022276
Mfg#:
HEA-WRAPKIT-25
Ships in 1 Business Day
$29.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

RaceChip RS

Get up to +55 hp and +43 lb-ft through a safe and easy to use tuning module from RaceChip affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Race Chip - Corporate Logo
ES#:
4339357
Mfg#:
917361
Ships in 3 Business Days
$449.00 USD
Free Shipping
on orders $49 and up
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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