Think it’s named a jdm phase 3? That plugs into cpu port beneath sprint. I have contacted cputek, been supplied a quote for cpu up grade. Would have previously bought it nevertheless it’s highly-priced. Any input on that? Thanks! Daniel – A tuner is a very good notion. Though a https://m3g80downpipe87420.wikigdia.com/6554995/downpipe_bmw_m3_an_overview