I had excellent success tuning with a single wideband with the AEM system without needing PRO. The AEM system installs with a pigtail on the OBDII port and then the MPVI2 plugs into that. VCM Scanner reads the lambda signal just fine. Bought the AEM system direct from HP Tuners. You do need PRO if you want to read 2 widebands at the same time. Here is a screen shot of a 3rd gear pull followed by a brief 4th gear pull. Lambda is tracking real close to my .885 target.
2006 M6 BOM 39K miles
Kooks Long Tubes, catted mids thru Magnaflow Mufflers
Cam Motion Stage 2 Cam 0.553" lift, 214/220 at 0.050"
XAir OTRCAI, FAST 102 Intake
Monster Level 2 Clutch Package, MGW-P shifter
Carbon Fiber 1 piece DSS Driveshaft
Gforce Anti-Wheel Hop Axles, Gforce Heavy Duty Differential Mount Bracket
409 RWT and 407 RWHP
1/8 mile best: 2.04(60'), 5.61(330'), 8.49(660'), street tires and 2500' density altitude, lifting between gears
Last edited by lejambcr; 06-12-2019 at 06:19 PM.