Audi B8/B8.5 S5 Quattro V8 4.2L APR Software

Gains up to 15HP & 14TQ on 93 Octane Call In Or Chat For Best Price! Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
This upgrade must be performed at ECS Tuning's facility in Ohio.
Vehicle must be brought to ECS Tuning for programming

Brand:

ES#:

1892589

Mfg#:

B8S542CHIP

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$819.99

This product was last offered at the strikethrough price on
09-28-2026

$655.99 USD

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Lifetime Replacement