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Audi C7 S6 Quattro 4.0T Performance Software & Tuning

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APR Stage 1 Performance Software - Fully Loaded *APR PLUS*

ES#3689890 - DPP-4.0T-APRPLUS - APR Stage 1 Performance Software - Fully Loaded *APR PLUS* - Higher peak numbers of 555 HP/609 FT-LBS on 91 octane - Up to 597 HP/668 FT-LBS on 100 octane race fuel *with APR PLUS limited powertrain warranty* - APR - Audi

Higher peak numbers of 555 HP/609 FT-LBS on 91 octane - Up to 597 HP/668 FT-LBS on 100 octane race fuel *with APR PLUS limited powertrain warranty* Call In Or Chat For Best Price! 5X Entries For Our 25th Anniversary Sweepstakes!
This upgrade must be performed at ECS Tuning's facility in Ohio.

Brand:
APR - Corporate Logo
ES#:
3689890
Mfg#:
DPP-4.0T-APRPLUS
In Stock
ON SALE! SAVE 10%
$1599.99

This product was last offered at the strikethrough price on
07-31-2026

$1439.96 USD
This product is lifetime replacement eligible Lifetime Replacement

Audi 4.0 TFSI S6/S7 W.1 ECU Tune - E85

ES#4715376 - 05-408-00191-8KT - Audi 4.0 TFSI S6/S7 W.1 ECU Tune - E85 - Increase of +134 Horsepower, and +215 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 +134 Horsepower, and +215 Torque! Eliminate top speed limiter, Increased throttle response. W.1 Tunes are designed for completely stock vehicles with no other modifications! For vehicle's equipped to run E85 Fuel

Brand:
Weistec - Corporate Logo
ES#:
4715376
Mfg#:
05-408-00191-8KT
Ships in 2 Business Days
$1899.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Audi 4.0 TFSI S6/S7 W.2 ECU Tune

ES#4715370 - 05-408-00140-2KT - Audi 4.0 TFSI S6/S7 W.2 ECU Tune - Increase of +141 Horsepower, and +192 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 +141 Horsepower, and +192 Torque! Eliminate top speed limiter, Increased throttle response. W.2 Tunes are designed for vehicles with performance exhausts & high-flow air filters!

Brand:
Weistec - Corporate Logo
ES#:
4715370
Mfg#:
05-408-00140-2KT
Ships in 2 Business Days
$2099.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Audi 4.0 TFSI S6/S7 W.2 ECU Tune - E85

ES#4715377 - 05-408-00192-9KT - Audi 4.0 TFSI S6/S7 W.2 ECU Tune - E85 - Increase of +149 Horsepower, and +240 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 +149 Horsepower, and +240 Torque! Eliminate top speed limiter, Increased throttle response. W.2 Tunes are designed for vehicles with performance exhausts & high-flow air filters! For vehicle's equipped to run E85 Fuel

Brand:
Weistec - Corporate Logo
ES#:
4715377
Mfg#:
05-408-00192-9KT
Ships in 2 Business Days
$2099.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Audi 4.0 TFSI S6/S7 W.1 ECU Tune

ES#4715369 - 05-408-00139-0KT - Audi 4.0 TFSI S6/S7 W.1 ECU Tune - Increase of +121 Horsepower, and +172 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 +121 Horsepower, and +172 Torque! Eliminate top speed limiter, Increased throttle response. W.1 Tunes are designed for completely stock vehicles with no other modifications!

Brand:
Weistec - Corporate Logo
ES#:
4715369
Mfg#:
05-408-00139-0KT
Ships in 2 Business Days
$1899.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Performance Software & Tuning

All the performance upgrade options from the best brands in the business to help build your dreams. Our performance parts catalog is the largest anywhere and constantly growing to keep your build on track.

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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