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Audi S4 Performance ECU & TCU Tuning

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ES#4493831 - IESOVZ14TCU - Stage 3 Plus IE Performance ECU Tune - Includes Stage 3 TCU Tune & POWERlink Cable - Easy upgrade into hybrid turbo power levels delivering up to 715HP and 678TQ. - Integrated Engineering - Audi

Easy upgrade into hybrid turbo power levels delivering up to 715HP and 678TQ. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!
Perform tune in minutes from the comfort of your own driveway! Only available for purchase in the United States and Canada.

Brand:
Integrated Engineering - Corporate Logo
ES#:
4493831
Mfg#:
IESOVZ14TCU
In Stock
$2177.99 USD
Free Shipping
ES#5388979 - IESOVJ33 - Apex IE Performance ECU Tune - With POWERlink Cable - Average gain of 131 horsepower and 136 lb-ft of torque on 91 Octane with dual pulley upgrade - Integrated Engineering - Audi

Average gain of 131 horsepower and 136 lb-ft of torque on 91 Octane with dual pulley upgrade affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!
Perform tune in minutes from the comfort of your own driveway! Only available for purchase in the United States and Canada.
For vehicles with manual transmission only

Brand:
Integrated Engineering - Corporate Logo
ES#:
5388979
Mfg#:
IESOVJ33
In Stock
$999.99 USD
Free Shipping
on orders $49 and up
ES#4493297 - iesovz13TCU - Stage 3 IE Performance ECU Tune - Includes Stage 3 TCU Tune & POWERlink Cable - Easy upgrade into hybrid turbo power levels delivering up to 601HP and 615TQ. - Integrated Engineering - Audi

Easy upgrade into hybrid turbo power levels delivering up to 601HP and 615TQ. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!
Perform tune in minutes from the comfort of your own driveway! Only available for purchase in the United States and Canada.

Brand:
Integrated Engineering - Corporate Logo
ES#:
4493297
Mfg#:
IESOVZ13TCU
In Stock
$1977.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4907820 - B6-3 - Jackal Motorsports Tune - Includes Jackal Tuning Cable & TCU Tune - Gains from 20-30 WHP on Stage 1 up to 60-70 WHP on Stage 3+ E85 - Jackal Motorsports - Audi

Gains from 20-30 WHP on Stage 1 up to 60-70 WHP on Stage 3+ E85 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with automatic transmission only

Brand:
Jackal Motorsports - Corporate Logo
ES#:
4907820
Mfg#:
B6-3
Ships in 1 Business Day
$655.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4715345 - 05-839-00132-1KT - Audi EA839 3.0T W.2 ECU Tune - Increase of +81 Horsepower, and +126 Torque! Eliminate top speed limiter, Increased throttle response. W.2 Tunes are designed for vehicles with performance exhausts & high-flow air filters! - Weistec - Audi

Increase of +81 Horsepower, and +126 Torque! Eliminate top speed limiter, Increased throttle response. W.2 Tunes are designed for vehicles with performance exhausts & high-flow air filters! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Weistec - Corporate Logo
ES#:
4715345
Mfg#:
05-839-00132-1KT
In Stock at Vendor
$1599.00 USD
Free Shipping
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 4 Business Days
$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#3706799 - iesocgjtcu - Apex IE Performance ECU Tune - Includes TCU Tune & POWERlink Cable - Average gain of 131 horsepower and 136 lb-ft of torque on 91 Octane - Integrated Engineering - Audi

Average gain of 131 horsepower and 136 lb-ft of torque on 91 Octane affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!
Perform tune in minutes from the comfort of your own driveway! Only available for purchase in the United States and Canada.
For vehicles with DSG transmission only

Brand:
Integrated Engineering - Corporate Logo
ES#:
3706799
Mfg#:
IESOCGJTCU
In Stock
$1248.99 USD
Free Shipping
ES#3639972 - JB4-B9-S4S5 - Burger Motorsports JB4 Tuner - This easy to install plug and play tuner attaches to sensors in the engine bay and works with your factory ECU tuning to remap boost, timing, and fueling for optimal performance and reduced turbo lag. - Burger Motorsports - Audi

This easy to install plug and play tuner attaches to sensors in the engine bay and works with your factory ECU tuning to remap boost, timing, and fueling for optimal performance and reduced turbo lag. 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#:
3639972
Mfg#:
JB4-B9-S4S5
Ships on Jun 23, 2026
$599.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4907819 - B6-1 - Jackal Motorsports Tune - Includes Jackal Tuning Cable - Gains from 20-30 WHP on Stage 1 up to 60-70 WHP on Stage 3+ E85 - Jackal Motorsports - Audi

Gains from 20-30 WHP on Stage 1 up to 60-70 WHP on Stage 3+ E85 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with manual transmission only

Brand:
Jackal Motorsports - Corporate Logo
ES#:
4907819
Mfg#:
B6-1
Ships in 1 day
$555.00 USD
Free Shipping
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#4708646 - 999871 - 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

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#:
4708646
Mfg#:
999871
Ships in 3 Business Days
$299.00 USD
Free Shipping
on orders $49 and up
ES#4376316 - 30T-EA839-1-UC - Unitronic Performance Software - Stage 1 - With UniCONNECT+ Cable - Gain up to 69 horsepower and 97 lb-ft of torque on 91 Octane - Unitronic - Audi

Gain up to 69 horsepower and 97 lb-ft of torque on 91 Octane affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Unitronic - Corporate Logo
ES#:
4376316
Mfg#:
30T-EA839-1-UC
In Stock
ON SALE! SAVE 15%
$1014.99

This product was last offered at the strikethrough price on
05-21-2026

$864.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4339360 - 917366 - RaceChip GTS Black With App Control - Get up to +66 hp and +52 lb-ft through a safe and easy to use app-controlled tuning module from RaceChip - Race Chip - Audi

Get up to +66 hp and +52 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#:
4339360
Mfg#:
917366
Ships in 3 Business Days
$799.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4339048 - 904526 - RaceChip GTS Black With App Control - Get up to +41 hp and +74 through a safe and easy to use app-controlled tuning module from RaceChip - Race Chip - Audi

Get up to +41 hp and +74 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#:
4339048
Mfg#:
904526
Ships in 3 Business Days
$799.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4668573 - AP3-VLK-004 - COBB Tuning Accessport Tuner V3 - Gain up to 80 horsepower and 151 lb-ft of torque on 93 Octane - CobbTuning - Audi

Gain up to 80 horsepower and 151 lb-ft of torque on 93 Octane affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
CobbTuning - Corporate Logo
ES#:
4668573
Mfg#:
AP3-VLK-004
In Stock
$770.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

More About Performance ECU & TCU Tuning

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