AFR questions

[MrIQR]

Thinking of adding a AFR gauge since my koso always gives me problems.

What brand is most reliable for sled use?

Where on the pipe do I mount it?

 

[Wheel House Motorsports]

I have always had awesome luck with the AEM gauges, they do fog up the lense a bit but they are tough as nails and always seem to work. Innovate stuff has given me more headaches then I would care to think about.

You will need to be post turbo but as close to turbo as possible to avoid back feeding of air up exhaust pipe between pulses. also try and keep sensor in the most vertical position possible.

 

[MrIQR]

I found this old thread, appears to be some debate on where to mount them?

https://www.snowest.com/forum/showthread.php?t=304698

 

[Wheel House Motorsports]

Some people are talking NA and some are talking turbo. I know there was some talk to the O2 sensor becoming able to adapt
to pipe pressures affects on its readings. But again, not sure off the top of my head. Basically if you put on in the pipe pre-turbo with a sensor not able to handle pressure the readings get skewed due to pressure. not massively, but enough to have your state of tune being a bit off.