Roger will no doubt reply shortly, but in the mean time you will not be able to measure the actual AFR with the GS911 after fitting the AF-Xied units as the GS911 will report the pre modified figures.
I believe Roger still uses a wide band sensor connected to an Innovate LC1 with the output programmed to simulate a narrow band sensor ( giving very similar results to the af-Xied`s).
The advantage with this set up is that you can log data at the same time.
The disadvantage is that the 2 units for a 1200 are quit bulky, need programming and require a lot more wiring than the Af-Xieds which are plug and play in minutes.
For my setup I use the AF-Xieds and have welded another pair of Lambda bosses in the header pipes close to the originals in which I use pair of wide band lambda sensors connected to an Innovate LM2 dual channel data logger.
I also have connected the Innovate LM2 to the BMSK ECU so can log 32 channels of data from the ECU to go with the AFR figures.
I did at one time try to connect the GS911 and the Innovate LM2 at the same time but there were conflicts.
Having said that you will get a lot of good data from the GS911 just not the post install AFR`s.
I believe Roger still uses a wide band sensor connected to an Innovate LC1 with the output programmed to simulate a narrow band sensor ( giving very similar results to the af-Xied`s).
The advantage with this set up is that you can log data at the same time.
The disadvantage is that the 2 units for a 1200 are quit bulky, need programming and require a lot more wiring than the Af-Xieds which are plug and play in minutes.
For my setup I use the AF-Xieds and have welded another pair of Lambda bosses in the header pipes close to the originals in which I use pair of wide band lambda sensors connected to an Innovate LM2 dual channel data logger.
I also have connected the Innovate LM2 to the BMSK ECU so can log 32 channels of data from the ECU to go with the AFR figures.
I did at one time try to connect the GS911 and the Innovate LM2 at the same time but there were conflicts.
Having said that you will get a lot of good data from the GS911 just not the post install AFR`s.