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

Compatible with the Audi AAN engine harness found in the 1992-1995 Audi S4 and S6 as well as the european audi S2.

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.

Note:  we offer this harness shipped as it comes from MAXX, or we offer a modified version that adds knock and AC control support via the C2 connector.  (see photos for the 'enhanced' version).  If you'd like just the C2 portion to add to your existing Maxx AAN adapter harness we can provide it for $100.  Note that C2 features are exclusive to the Race and Pro ecus, the street ecu only has provisions for a C1 connector.