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Audi S4 Performance Engine Parts

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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
ON SALE! SAVE 10%
$949.99

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

$854.96 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

JHM Exhaust Headers With Cats

For Manual Transmissions - Comes with cats and 2.5" cat back

Brand:
JH Motorsports - Corporate Logo
ES#:
5376133
Mfg#:
JHM-B6S-LTHM
Ships in 10 Business Days
$3386.99 USD
Free Shipping
on orders $49 and up

Motorsport StreetSport Engine Mounts - Pair

ES#4846368 - 034-509-0089 - Motorsport StreetSport Engine Mounts - Pair - Designed with extreme performance in mind and manufactured from billet aluminum and high-durometer Density Line rubber for better ride characteristics than polyurethane. - 034Motorsport - Audi

Designed with extreme performance in mind and manufactured from billet aluminum and high-durometer Density Line rubber for better ride characteristics than polyurethane. 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
4846368
Mfg#:
034-509-0089
In Stock
$677.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

2.5" High-Flow Downpipe

ES#3420821 - SSXAU673 - 2.5" High-Flow Downpipe - Featuring Milltek Sport Hi-Flow sports cat, fits with OE and Milltek cat-back systems. - Milltek Sport - Audi

Featuring Milltek Sport Hi-Flow sports cat, fits with OE and Milltek cat-back systems.

Brand:
Milltek Sport - Corporate Logo
ES#:
3420821
Mfg#:
SSXAU673
Ships on Nov 13, 2026
$3374.99

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

$3374.78 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Cat-Back Exhaust System - Resonated

ES#2827420 - SSXAU296 - Cat-Back Exhaust System - Resonated - 2.25" stainless steel with dual 100mm 'GT100' style polished exhaust tips - Milltek Sport - Audi

2.25" stainless steel with dual 100mm 'GT100' style polished exhaust tips

Brand:
Milltek Sport - Corporate Logo
ES#:
2827420
Mfg#:
SSXAU296
Ships on Dec 3, 2026
$1685.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

M11 Head Stud Kit EA839 2.9T/3.0T

ES#5446956 - 034-201-5031 - M11 Head Stud Kit EA839 2.9T/3.0T - Designed to maintain reliable clamping force under sustained heat and load, addressing the limitations of OE torque-to-yield head bolts that can stretch and degrade at higher power levels. - 034Motorsport - Audi

Designed to maintain reliable clamping force under sustained heat and load, addressing the limitations of OE torque-to-yield head bolts that can stretch and degrade at higher power levels. 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
5446956
Mfg#:
034-201-5031
In Stock
$550.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
Scratch and Dent Item

Milltek Sport Cat-Back Exhaust System - Resonated With Exhaust Valves *Scratch And Dent*

ES#4730281 - SSXAU695sd - Milltek Sport Cat-Back Exhaust System - Resonated With Exhaust Valves *Scratch And Dent* - ***Please see photos and description prior to ordering, all sales final.*** 2.50" stainless steel with quad GT-100 Cerakote black tips - Scratch & Dent - Audi

***Please see photos and description prior to ordering, all sales final.*** 2.50" stainless steel with quad GT-100 Cerakote black tips ALL SALES FINAL. ITEMS MAY BE DAMAGED OR MISSING COMPONENTS. PLEASE SEE IMAGES BEFORE PURCHASING. Want To Haggle? Give Us A Call Or Chat To Make An Offer On This Product!

Brand:
Scratch & Dent - Corporate Logo
ES#:
4730281
Mfg#:
SSXAU695SD
Ships in 1 day
$3283.00 USD

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 Nov 10, 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
10-25-2026

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

Cat-Back Exhaust System - Resonated

ES#2827483 - SSXAU366 - Cat-Back Exhaust System - Resonated - 2.37" stainless steel with quad 100mm polished tips - Milltek Sport - Audi

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

Brand:
Milltek Sport - Corporate Logo
ES#:
2827483
Mfg#:
SSXAU366
Ships on Nov 13, 2026
$3272.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Supertech Inconel Exhaust Valve - 1.8T/2.7T - Priced Each

ES#3647472 - ST-AEVI-1103 - Supertech Inconel Exhaust Valve - 1.8T/2.7T - Priced Each - Standard sized valve head diameter, factory triple groove keeper setup - Supertech - Audi Volkswagen

Standard sized valve head diameter, factory triple groove keeper setup *Valves priced individually - For 1.8T - qty 8 needed / For 2.7T - qty 12 needed - Please see long description for additional valve seal/keeper informati

Brand:
Supertech - Corporate Logo
ES#:
3647472
Mfg#:
ST-AEVI-1103
In Stock
$44.78 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

RS4 K04 Turbochargers With Install Kit

ES#3247798 - 5304988002526KT - RS4 K04 Turbochargers With Install Kit - Includes the left (K04-025) & right (K04-026) side turbochargers with associated installation hardware - Assembled By ECS - Audi

Includes the left (K04-025) & right (K04-026) side turbochargers with associated installation hardware 10X Entries Into Our F80 M3 Sweepstakes
Does NOT include the RS4 or modified intake pipes necessary for a complete install - For a bolt-on solution, please see 034Motorsport's inlet pipe kit 034-145-P002 (ES2864575).

Brand:
Assembled By ECS - Corporate Logo
ES#:
3247798
Mfg#:
5304988002526KT
Ships in 1 Business Day
$3214.00

This product was last offered at the strikethrough price on
06-19-2026

$3211.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Cat-Back Exhaust System - Non-Resonated Race Version

ES#2827492 - SSXAU375 - Cat-Back Exhaust System - Non-Resonated Race Version - 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#:
2827492
Mfg#:
SSXAU375
Ships on Nov 13, 2026
$3192.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Cat-Back Exhaust System - Resonated

ES#2827387 - SSXAU261 - Cat-Back Exhaust System - Resonated - 2.37" stainless steel with quad 80mm polished tips - Milltek Sport - Audi

2.37" stainless steel with quad 80mm polished tips Up to the 2012 model year

Brand:
Milltek Sport - Corporate Logo
ES#:
2827387
Mfg#:
SSXAU261
Ships on Nov 13, 2026
$3177.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Performance Cat-Back Exhaust System

ES#3107059 - 140403 - Performance Cat-Back Exhaust System - 2.5" stainless steel with quad 3.5" polished stainless tips - Borla - Audi

2.5" stainless steel with quad 3.5" polished stainless tips

Brand:
Borla - Corporate Logo
ES#:
3107059
Mfg#:
140403
Ships in 10 Business Days
$3130.99 USD
Free Shipping

Cat-Back Exhaust System - Resonated

ES#2827388 - SSXAU262 - Cat-Back Exhaust System - Resonated - 2.37" stainless steel with dual oval black Cerakote tips - Milltek Sport - Audi

2.37" stainless steel with dual oval black Cerakote tips Up to the 2012 model year

Brand:
Milltek Sport - Corporate Logo
ES#:
2827388
Mfg#:
SSXAU262
Ships on Nov 13, 2026
$3105.99 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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