Audi C7 S6 Quattro 4.0T Performance Software & Tuning

Higher peak numbers of 555 HP/609 FT-LBS on 91 octane - Up to 597 HP/668 FT-LBS on 100 octane race fuel 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.
Vehicle must be present at ECS Tuning in Wadsworth, OH

Brand:

ES#:

2622641

Mfg#:

40TSTG1KT

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$1499.99

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

$1349.99 USD

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Lifetime Replacement

Designed for use with Audi’s high output RS6/7 4.0 TFSI turbochargers - When paired with required hardware, this upgrade offers 634 HP and 671 FT-LBS of torque on 93 octane fuel and 707 HP and 714 FT-LBS of torque with race fuel! Call In Or Chat For Best Price! 5X Entries For Our 25th Anniversary Sweepstakes!
*Direct-Port flashing Only - This upgrade must be performed at ECS Tuning's facility in Ohio. - Please se

Brand:

ES#:

4685291

Mfg#:

ECU-40T-EA824-S6

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:

ES#:

3689890

Mfg#:

DPP-4.0T-APRPLUS

ON SALE! SAVE 10%

$1599.99

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

$1439.96 USD

Add to Cart

Lifetime Replacement