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Audi S4 Performance Engine Parts

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ES#4714891 - JB4-OBDII-CA - JB4 OBDII Cable - 2 Position (Cable Only) - Replacement JB4 OBDII cable suitable for use in all applications where the JB4 attaches to the OBDII port under the dash. - Burger Motorsports - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Replacement JB4 OBDII cable suitable for use in all applications where the JB4 attaches to the OBDII port under the dash. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Burger Motorsports - Corporate Logo
ES#:
4714891
Mfg#:
JB4-OBDII-CA
In Stock
$25.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3603936 - 50-1005 - 400LPH High Flow Fuel Pump (AN Fittings) - Designed for high performance naturally aspirated and forced induction EFI vehicles - It can be installed externally or in-tank using optional hardware that is sold separately - AEM Electronics  - Audi Volkswagen

Designed for high performance naturally aspirated and forced induction EFI vehicles - It can be installed externally or in-tank using optional hardware that is sold separately affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
This is a general-use high flow fuel pump, not a direct plug-and-play swap in most application

Brand:
AEM Electronics  - Corporate Logo
ES#:
3603936
Mfg#:
50-1005
In Stock at Vendor
$193.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4642914 - 034-108-5042 - SuperDuper Turbo Inlet Pipe + X34 SuperDuper Conversion Kit  - Includes conversion kit to to convert your X34 Intake from a stock turbo sized inlet to our larger SuperDuper Turbo Inlet Pipe. - 034Motorsport - Audi

Includes conversion kit to to convert your X34 Intake from a stock turbo sized inlet to our larger SuperDuper Turbo Inlet Pipe. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
4642914
Mfg#:
034-108-5042
In Stock
$322.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3477712 - IEBAVJ4 - Supercharger Pulley Installation Kit - Ease the 3.0T supercharger pulley removal/installation process with this install kit - Integrated Engineering - Audi Volkswagen Porsche

Ease the 3.0T supercharger pulley removal/installation process with this install kit affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Integrated Engineering - Corporate Logo
ES#:
3477712
Mfg#:
IEBAVJ4
In Stock
$233.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4362075 - SN0-N0800 - Water/Methanol Nozzle - 8GPH - 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#:
4362075
Mfg#:
SN0-N0800
In Stock at Vendor
$31.99 USD
Free Shipping
on orders $49 and up
ES#3053941 - 764403 - Supersprint Center Section - Resonated - Left and right side resonated center section - To be installed with connecting pipes 764422 - Supersprint - Audi

Left and right side resonated center section - To be installed with connecting pipes 764422 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Supersprint - Corporate Logo
ES#:
3053941
Mfg#:
764403
Ships on Sep 22, 2026
$919.99 USD
Free Shipping
ES#3988146 - 034-108-1013 - X34 Carbon Fiber Cold Air Intake System - Delivers improved power, sound, and acceleration to B9 Audi S4/S5 owners in a clean OEM+ package - 034Motorsport - Audi

Delivers improved power, sound, and acceleration to B9 Audi S4/S5 owners in a clean OEM+ package affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
3988146
Mfg#:
034-108-1013
Ships in 2 Business Days
$908.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4376314 - 30T-EA839-1+ - Unitronic Performance Software - Stage 1+ - Gain up to 100 horsepower and 112 lb-ft of torque on 93 Octane - Unitronic - Audi

Gain up to 100 horsepower and 112 lb-ft of torque on 93 Octane affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
This tune requires the vehicle to be dropped off at ECS Tuning's facility in Ohio and picked up the next

Brand:
Unitronic - Corporate Logo
ES#:
4376314
Mfg#:
30T-EA839-1+
In Stock
$900.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

This includes 3 reinforced silicone hoses, and 1 aluminum charge air tube. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles that have the Wagner Competition Intercooler

Brand:
Wagner Tuning - Corporate Logo
ES#:
4017656
Mfg#:
210001120
In Stock at Vendor
$450.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4057386 - DPP-30T-MG1 -  APR 3.0T Stage 1 ECU Upgrade  - Expect massive gains with 431-480 HP with 467-549 FT-LBS of torque on tap, depending on octane, from this simple software upgrade! - APR - Audi

Expect massive gains with 431-480 HP with 467-549 FT-LBS of torque on tap, depending on octane, from this simple software upgrade! 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!
This upgrade must be performed at ECS Tuning's facility in Ohio.

Brand:
APR - Corporate Logo
ES#:
4057386
Mfg#:
DPP-30T-MG1
In Stock
$899.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4028212 - TS-EW-L - Universal Exhaust Wrap - Lava - Increase power by containing exhaust heat - Lava - Torque Solution - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Increase power by containing exhaust heat - Lava affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Torque Solution - Corporate Logo
ES#:
4028212
Mfg#:
TS-EW-L
In Stock
Starting at $29.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Go from mild to wild! Select the options you want for your build. 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#:
4017052
Mfg#:
B9S4PWRPK
Ships on Nov 18, 2026
ON SALE!
Starting at $0.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4493209 - MMBCC-S4-18PBE - Mishimoto Baffled Oil Catch - Kit - Help reduce potential detonation, carbon buildup on intake valves and protect from oil blow-by. - Mishimoto - Audi

Help reduce potential detonation, carbon buildup on intake valves and protect from oil blow-by. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Mishimoto - Corporate Logo
ES#:
4493209
Mfg#:
MMBCC-S4-18PBE
In Stock at Vendor
$445.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4044053 - 4710-11026 - AWE ColdFront Coolant Pump - B8.5 3.0T - Replaces the stock heat exchanger pump and out-performs it with a 100% gain in flow-rate over the factory pump. - AWE - Audi

Replaces the stock heat exchanger pump and out-performs it with a 100% gain in flow-rate over the factory pump. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

For vehicles from the 2013 model year only (Facelift). Requires the AWE ColdFrontâ„¢ Reservoir for proper fitment.

Brand:
AWE - Corporate Logo
ES#:
4044053
Mfg#:
4710-11026
Ships in 5 Business Days
$865.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4381906 - 30TFSI-D-UC - Unitronic Performance Software - With UniCONNECT+ Cable - Choose the stage that meets your power goals! - Unitronic - Audi

Choose the stage that meets your power goals! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
This tune can be performed at home with the included UniCONNECT+ cable. Only available for purchase in th

Brand:
Unitronic - Corporate Logo
ES#:
4381906
Mfg#:
30TFSI-D-UC
In Stock
Starting at $864.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4858306 - 034-108-1911 - SuperDuper Adapter - Purchase this kit if you need an additional adapter to send out to have port matched to your supercharger or if you need a replacement. - 034Motorsport - Audi

Purchase this kit if you need an additional adapter to send out to have port matched to your supercharger or if you need a replacement. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
4858306
Mfg#:
034-108-1911
In Stock
$216.00 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.

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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