Please print out this form and mail it in with your DME. DME will not be flashed until the form is filled out and sent to us. Thank you.
BMW N63 with MSD85 Performance ECU tuning software.
Will work in the following BMW models:
We have multiple stages of tunes for the N63 4.4L V8 Twin Turbo engine:
Stage 1: 79WHP 110WTQ - stock hardware
Stage 2: 117WHP 120WTQ (requires downpipes)
Stage 2 E30: 140WHP 158WTQ (requires downpipes and ethanol mix of E30, need to mix E85 with pump gas to make E30)
DME would have to be removed and shipped to our shop for flashing modified performance software to improve HP/TQ significantly. Remote flashing is not available for this ECU.
Please see attached dyno graphs for gains for each stage. Stock tune is the blue baseline runs, all testing was done with downpipes/intake, no hardware changes of any kind.