Dont kill me or tell me to use the search function..

Have a question I've been looking into getting the plug and play JB3 and then I also saw a split second turbo tuner. If I get the JB3 then the turbo tuner is not needed as it seems that the JB3 gives all the same things and then some?

Would appreciate any help

thanks

correct, it's not needed/recc'd to stack the SSTT (tmap tune) on top of the jb3 (ecu tune).

some members on e90posts have stacked a tmap tune (jb+) on top of an ecu flash (dinan, maybe giac), but even that is not recc'd and requires individualized programming from BMS....

just go with the jb3 as it will have more controls over the timing and pressures and less likely to throw tuner/manip codes, and as you stated, has the same features as the sstt and then some :cool: