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Audi S4 Performance Engine Parts

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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! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4461006
Mfg#:
012054LA18-DRY
In Stock
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
ES#4715344 - 05-839-00131-0KT - Audi EA839 3.0T W.1 ECU Tune - Increase of +66 Horsepower, and +111 Torque! Eliminate top speed limiter, Increased throttle response. W.1 Tunes are designed for completely stock vehicles with no other modifications! - Weistec - Audi

Increase of +66 Horsepower, and +111 Torque! Eliminate top speed limiter, Increased throttle response. W.1 Tunes are designed for completely stock vehicles with no other modifications! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Weistec - Corporate Logo
ES#:
4715344
Mfg#:
05-839-00131-0KT
Ships in 1 Business Day
$1499.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4660564 - 999941 - RaceChip XLR Throttle Controller With App Control - Eliminate the delay in throttle response times with a simple XLR addition! Allows for Bluetooth connectivity for easy App based control. - Race Chip - Audi Volkswagen

Eliminate the delay in throttle response times with a simple XLR addition! Allows for Bluetooth connectivity for easy App based control. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Race Chip - Corporate Logo
ES#:
4660564
Mfg#:
999941
Ships in 3 Business Days
$299.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4044003 - 3815-41010 - AWE Touring Edition Conversion Kit - B8.5 S4/S5 - For 102mm Tips - Looking to bring it down a notch? - AWE - Audi

Looking to bring it down a notch? affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

For vehicles from the 2013 model year (Facelift)

Brand:
AWE - Corporate Logo
ES#:
4044003
Mfg#:
3815-41010
In Stock at Vendor
15% off MSRP

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

$876.99

This product was last offered at the strikethrough price on
06-18-2026

$745.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4164715 - B6S4NONRESONATED - Cat-Back Exhaust System - Non-Resonated - 2.25" stainless steel with your choice of tip style - Milltek Sport - Audi

2.25" stainless steel with your choice of tip style affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Milltek Sport - Corporate Logo
ES#:
4164715
Mfg#:
B6S4NONRESONATED
Ships in 3 Business Days
Starting at $1486.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4623922 - SN0-60400 - VC-30 Water Methanol Controller (Boost) - Proportionally injects more or less water/methanol according to boost pressure - SnowPerformance - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Proportionally injects more or less water/methanol according to boost pressure affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
SnowPerformance - Corporate Logo
ES#:
4623922
Mfg#:
SN0-60400
In Stock at Vendor
$184.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3644159 - 777512 - Performance Downpipe Kit - Non-Resonated  - T304 Stainless Steel high flow front pipe kit replaces factory secondary catalytic converters - Supersprint - Audi

T304 Stainless Steel high flow front pipe kit replaces factory secondary catalytic converters affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Supersprint - Corporate Logo
ES#:
3644159
Mfg#:
777512
Ships in 3 Business Days
$1466.99 USD
Free Shipping
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 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2723181
Mfg#:
000805ECS03AKT
Ships in 1 day
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
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 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Fits both manual and automatic transmission models

Brand:
Sprint Booster - Corporate Logo
ES#:
3184660
Mfg#:
SBAU0013S
Ships in 10 Business Days
$289.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2864568 - 034-108-6007 - Billet MAF Housing - Hitachi Style (late) 85mm ID - Perfect for use in upgraded turbo cars with larger injectors and appropriate software - 034Motorsport - Audi

Perfect for use in upgraded turbo cars with larger injectors and appropriate software affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Fits models with Hitachi style MAF sensor - From the 2001 model year

Brand:
034Motorsport - Corporate Logo
ES#:
2864568
Mfg#:
034-108-6007
Back Ordered
$180.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4499569 - CTS-EXH-TP-0019 - CTS Resonator Delete Kit - Get all the benefits of using this resonator delete without the high price tag. - CTS - Audi

Get all the benefits of using this resonator delete without the high price tag. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
CTS - Corporate Logo
ES#:
4499569
Mfg#:
CTS-EXH-TP-0019
Ships in 7 Business Days
ON SALE! SAVE 10%
$399.99

This product was last offered at the strikethrough price on
06-08-2026

$359.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3102573 - 000931ECS08 -  Fuel Line Relocation Kit - Re-routes the fuel line underneath the intake tube for a cleaner look! - ECS - Audi

Re-routes the fuel line underneath the intake tube for a cleaner look! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Up to the 2012 model year

Brand:
ECS - Corporate Logo
ES#:
3102573
Mfg#:
000931ECS08
In Stock
ON SALE! SAVE 20%
$62.99

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

$50.39 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3178073 - 034-509-2011 - Performance Polyurethane Snub Mount  - Reduce unwanted engine movement with a full polyurethane mount - 034Motorsport - Audi

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

Brand:
034Motorsport - Corporate Logo
ES#:
3178073
Mfg#:
034-509-2011
In Stock
$54.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2592687 - RF100003 - Carbonio Replacement Filter Element - Replacement air filter for APR Carbonio intake systems - APR - Audi

Replacement air filter for APR Carbonio intake systems 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!
CARB certified for sale in all 50 states

Brand:
APR - Corporate Logo
ES#:
2592687
Mfg#:
RF100003
EO#:
d-783-2
In Stock
12% off MSRP

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

$92.99

This product was last offered at the strikethrough price on
06-18-2026

$81.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
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 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Forge - Corporate Logo
ES#:
3980512
Mfg#:
FMINT12
Ships in 3 Business Days
$1372.99 USD
This product is lifetime replacement eligible Lifetime Replacement
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 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

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

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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