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Audi S4 Performance Engine Parts

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Supertech Valve Spring & Titanium Retainer Set

ES#4780587 - 034-201-8022 - Supertech Valve Spring & Titanium Retainer Set - Enhancing the power output of your 3.0T - Supertech - Audi

Enhancing the power output of your 3.0T

Brand:
Supertech - Corporate Logo
ES#:
4780587
Mfg#:
034-201-8022
Back Ordered
ON SALE! SAVE 10%
$828.00

This product was last offered at the strikethrough price on
08-23-2026

$745.20 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

B9 A4/S4 Carbon Fiber Inlet Scoop

ES#3537354 - 024641ecs02KT - B9 A4/S4 Carbon Fiber Inlet Scoop - Channel air to your intake with performance syle! - ECS - Audi

Channel air to your intake with performance syle! 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
3537354
Mfg#:
024641ECS02KT
Ships on Jan 21, 2027
ON SALE! SAVE 10%
$271.61

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

$244.45 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Complete ECS Performance Engine Mount Kit - Audi B5 S4

ES#2723181 - 000805ECS03AKT - Complete ECS Performance Engine Mount Kit - Audi B5 S4 - Includes ECS performance polyurethane engine mount and snub mount - ECS - Audi

Includes ECS performance polyurethane engine mount and snub mount 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
2723181
Mfg#:
000805ECS03AKT
Ships on Jan 14, 2027
ON SALE! SAVE 10%
$402.99

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

$362.69 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Sprint Booster V3 Power Converter

ES#3184660 - SBAU0013S - Sprint Booster V3 Power Converter - Reduces the delay of your "Drive by Wire" throttle response - All new V3 model provides additional features such as 'valet' and 'pedal lock' modes - Sprint Booster - Audi

Reduces the delay of your "Drive by Wire" throttle response - All new V3 model provides additional features such as 'valet' and 'pedal lock' modes Fits both manual and automatic transmission models

Brand:
Sprint Booster - Corporate Logo
ES#:
3184660
Mfg#:
SBAU0013S
Ships on Sep 11, 2026
$289.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cold Air Intake Stage 1

ES#2192982 - CI100023 - Cold Air Intake Stage 1 - Looks as great as it performs - APR - Audi

Looks as great as it performs Call In Or Chat For Best Price!
CARB certified for sale in all 50 states

Brand:
APR - Corporate Logo
ES#:
2192982
Mfg#:
CI100023
EO#:
d-783-2
Back Ordered
11% off MSRP

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

$806.99

This product was last offered at the strikethrough price on
08-26-2026

$716.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

APR Valve Spring Kit - Priced Per Spring

ES#4690063 - MS100258 - APR Valve Spring Kit - Priced Per Spring - Lighter, stiffer, and supports higher revving! - APR - Audi Volkswagen

Lighter, stiffer, and supports higher revving! Call In Or Chat For Best Price!

Brand:
APR - Corporate Logo
ES#:
4690063
Mfg#:
MS100258
Ships in 6 Business Days
11% off MSRP

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

$69.99

This product was last offered at the strikethrough price on
08-25-2026

$61.99 USD
Free Shipping

Forge Motorsport Recirculating Valve - Black

ES#3980510 - FMDV13R - Forge Motorsport Recirculating Valve - Black - Engineered to remedy the failure issues experienced with the OEM solenoid valves when the diaphragm or plastic piston fails - Forge - Audi

Engineered to remedy the failure issues experienced with the OEM solenoid valves when the diaphragm or plastic piston fails

Brand:
Forge - Corporate Logo
ES#:
3980510
Mfg#:
FMDV13R
In Stock
$280.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ECS Exact-Fit High Flow Air Filter - Dry

ES#4461006 - 012054LA18-DRY - ECS Exact-Fit High Flow Air Filter - Dry - High flow filter replacement to get your engine breathing better than new! - ECS - Audi Volkswagen

High flow filter replacement to get your engine breathing better than new! 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
4461006
Mfg#:
012054LA18-DRY
Ships on Oct 26, 2026
Auto Notify
ON SALE! SAVE 25%
$71.99

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

$53.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

AWE Touring Edition Conversion Kit - B8/B8.5 S4/S5 - For 90mm Tips

ES#4044002 - 3815-41008 - AWE Touring Edition Conversion Kit - B8/B8.5 S4/S5 - For 90mm Tips - Looking to bring it down a notch? - AWE - Audi

Looking to bring it down a notch? 2X Entries Into Our F80 M3 Sweepstakes

Brand:
AWE - Corporate Logo
ES#:
4044002
Mfg#:
3815-41008
Ships in 6 Business Days
ON SALE!
$745.00

This product was last offered at the strikethrough price on
08-23-2026

$701.19 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Audi B9 3.0T S4 S5 Catted Downpipe

ES#4905571 - B930TDPC - Audi B9 3.0T S4 S5 Catted Downpipe - Increased Power and Torque, Massive 6.5" Design, Faster Turbo Spool, and Improved Exhaust Note - ARM Motorsports - Audi

Increased Power and Torque, Massive 6.5" Design, Faster Turbo Spool, and Improved Exhaust Note

Brand:
ARM Motorsports - Corporate Logo
ES#:
4905571
Mfg#:
B930TDPC
Ships in 5 Business Days
ON SALE! SAVE 10%
$779.00

This product was last offered at the strikethrough price on
08-11-2026

$701.10 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Performance Front Mount Intercooler

ES#3980512 - FMINT12 - Performance Front Mount Intercooler - Offering a huge 128% increase in frontal area and matching increase in internal volume - Forge - Audi

Offering a huge 128% increase in frontal area and matching increase in internal volume

Brand:
Forge - Corporate Logo
ES#:
3980512
Mfg#:
FMINT12
Ships in 6 Business Days
$1372.99 USD
This product is lifetime replacement eligible Lifetime Replacement

JE Forged Piston Set

ES#2784572 - 314323 - JE Forged Piston Set - 81mm bore (factory bore), 9.0:1 compression ratio, 86.4mm stroke - includes rings, wrist-pins, & circlips - JE Piston - Audi

81mm bore (factory bore), 9.0:1 compression ratio, 86.4mm stroke - includes rings, wrist-pins, & circlips

Brand:
JE Piston - Corporate Logo
ES#:
2784572
Mfg#:
314323
In Stock at Vendor
$1349.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Piston Assembly - Set Of Six

ES#2918330 - 314325 - Piston Assembly - Set Of Six - 82mm bore (oversized), 9.0:1 compression ratio, 86.4mm stroke - includes rings, wrist-pins, & circlips - JE Piston - Audi

82mm bore (oversized), 9.0:1 compression ratio, 86.4mm stroke - includes rings, wrist-pins, & circlips +1mm bore size: Overbore pistons require additional machine work including a cylinder bore and hone, this work must be performed by a machine shop

Brand:
JE Piston - Corporate Logo
ES#:
2918330
Mfg#:
314325
In Stock at Vendor
$1349.99 USD
Free Shipping

JE Forged Piston Set

ES#3569780 - 314326 - JE Forged Piston Set - 82.5mm bore (oversized), 9.0:1 compression ratio, 86.4mm stroke - includes rings, wrist-pins, & circlips - JE Piston - Audi

82.5mm bore (oversized), 9.0:1 compression ratio, 86.4mm stroke - includes rings, wrist-pins, & circlips +1.5mm bore size: Overbore pistons require additional machine work including a cylinder bore and hone, this work must be performed by a machine shop

Brand:
JE Piston - Corporate Logo
ES#:
3569780
Mfg#:
314326
Back Ordered
$1349.99 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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