Originally Posted by 1NAR

Yo thats awesome!! And there's alot to dissect here. Being a 2004 I'm assuming it's a W211 chassis and with it being a more updated model m112 it could handle it. But using the c32 AMG Injectors it ran very very rich on the stock ecu at about 8mpg. I would find out what transmission and differential you have. If you have the older transmission with shorter gears and a 3.07 rear end then you will get into drivetrain breaking problems. From OEM Tuning Renntech and a bunch of other places to no avail they did not wanna tune my vehicle with the stock ecu. I would tune it myself with a F/IC like the other person who's done this or as everyone else has mentioned try and find a way to get the AMG ecu to hook up (I don't know what good that will accomplish honestly but). What I would LIKE to do is get the different Rear end from a fellow forum member and 6-speed swap it from the crossfire/slk. A facebook member 6-speed swapped his and apparently since the car thinks its in neutral and works like a dream for him. I'm really not sure with the 211 chassis though and what complications can arise from it. If you have any more in depth questions I'll happily answer. And don't be afraid to call a dealership, they (or at least mine) would happily look at and run a short test for a boosted merc.