Yea, it would be easier for you to have them wire it up in a dual ECU format. You're auto right? Then dual ECU is a good solution.alright first off i have a 2003 rs. i dont know whether to re-flash mine to the evo ecu or buy one and wire it in. the prob. is i don't know a lot about re-flashing and the shop thats doing my tunning after i get the kit on can't reflash it for me, so if i have the money would it be easier to buy a evo ecu and just have them install it and run duel ecu's?
I have a question though, why can't the shop flash it for you? If they can't flash it, then they aren't going to be able to tune it for you. Thats how you tune with a dual ecu setup. You read/flash on the EVO ECU which controls the engine.
Also, if you're auto, the EVO ROM won't work in your ECU, it won't control the transmission.