Originally Posted by THE EVIL TW1N
Where did they put the o2 sensor for the dyno run? if they put it at the tailpipes, it will always read leaner because of the cats.
Yes, in the pipes -- and it should have correction for it being down stream.
When my headers arrive from australia, I'm adding an extra bung for my WB. We'll get solid numbers pre-cat before doing any forced induction.
So much for the "don't mod it" warning from my wife LOL