I've read a lot about placing O2 sensors in the collectors. I have about 7-9" of pipe after my collectors, where in the collector would you guys recommend to put the O2? Befor the " pinch point " of the collector or after it?
After some more reading and looking I'm going to put them between the vband and the pinch of the merge. Gives a nice straight shot from the primarys and will have about 8" of pipe (bullhorns) until the gasses exit.
Thanks for the replies guys