[miks]

i see quiet a few users here removing cat so wanted to ask what are the options for ecu upmap now.
Maybe someone have done dyno without cat and without upmap and can share charts to see how bad fuel mixture actually is?

 

[johnnycay57]

Maybe someone have done dyno without cat and without upmap and can share charts to see how bad fuel mixture actually is?

I'd be interested as well.

Some knowledgeable contributors have operated theirs without a cat with no ECU warnings or issues and seems that in many cases the difference between cat and no cat mixture is only a slight difference.

 

[miks]

got answer from manufacturer regarding T800+ upmap device:
"not yet support for 937 sorry , maybe this year"