Maxx ECU - Audi S2 / S4 / S6 / AAN adapter harness
EFI Express

Maxx ECU - Audi S2 / S4 / S6 / AAN adapter harness

Regular price $499.00 $0.00 Unit price per

We've happy to announce that EFI now sells and tunes in house as well as remote the complete line of Maxx ecu hardware products.  Available in multiple ecu trims, the maxx ecu provides extensive inputs and outputs to support a wide range of tuning needs.

The Audi PNP kit consists of the c1 connector wired to the 55 pin motronic connector.

compatible with the Maxx Street, Race, and Pro ecus.