If I was based in the US, I'd go with the PowerChip one, its a tried and tested solution on hundreds (maybe thousands of m5s). I'm sure you can upload the original ecu map, when you come to sell the car, as part of the powerchip process, is to save your original maps, thus taking out the Mafs/iats/cai shouldn't be too difficult (plus you can always sell them onto recoup the costs).DrewT said:just purchased a dinan CAI, MAF's and IATS. I am wondering what software to get and am hesitant to speak to a Dinan dealer about it because I am not sure how knowledgeable they are. I am NOT planning on doing an exhaust anytime soon, did one on my m3 and it became non-wife friendly really quick.
any advise would be appreciated. PS since this is a CPO car and is going to go to the dealer for the next couple of years I would like the dealer to be "happy" with any mods.
just my £0.01p's worth :thumbsup: