Masks are also called definition files: http://www.tunerpro.net/downloadBinDefs.htm

Masks or definition files are specific to Year / Make / Model / Engine / Transmission / Computer Part Number. Masks or definition files allow TunerPro software to organize binary code (.bin file) into Scalars, Flags, and Tables.

I have not modified a 16196395 V6 Memcal to a 16196395 V8 Memcal. The Memcal also has the knock sensor filter, and limp home function. A good plan would to use an original 16196395 V8 Memcal.

dave w