I have a 3:55 on the way for my base ecoboost, so I've been reading up how to do the swap. I'm confused though because I've read that the BCM can't be flashed and I've read that some people have been able to have their BCM flashed. I've also read that the Cobb and X4 tuner (which I have) can...
I just purchased a 3.55 from cjpony parts for my ecoboost. Am I SOL on being able to install it until the 4th quarter of this year? I have a tuner but from what I've read that isn't enough. Has anyone swapped ratios without flashing the bcm? Thanks for any help.
I'm really wanting to put an hks ssq on my car, but I don't know how to bypass the electronic side of the factory bpv. Has anyone seen any information on building a circuit like turbosmart uses?