Originally Posted by Raptor251
I guess you failed to read any of this thread. If you had you would realize we are talking about catless cars, you have high flow cats, totally different.
O2 extenders do NOT work on an s65
There is no pre-made solution for mechanical extenders that works on all catless systems. There is nothing magic about this setup. We are just talking about manipulating the rear O2 extended position until the signal is right. So calling this guy a liar, when he has zero to gain, seems pretty illogical to me.
It doesn't matter if you have HFCs or not, Fabspeed had to do the exact same thing - experiment until they got the right length/angle/etc.