Somewhere on here I read about a prob with the 94000 series cat throwing a post cat sensor code.Due to the fact of the precious metals not being right(which is a prob I had , until I did the non fouler fix) Even though I got the direct replacement ,y-pipe and all, this made me curios. So I called Jeg's ,which is where I got it. The tech support guy told me that it is a problem they have been seeing with the Magna flows. MF is closed today , so it will have to wait until Monday. I know now this has got to be the reason, as I was blaming it on the 14x3 and thought I might have ruined it from using MMO in the gas. So we'll see what happens.

Just a heads up for any with a MAgna Flow 94 series.

 

I havent had any problems with mine.

 

I can't remember which series mine is but mine was a universal one. I didn't have any codes when I put it on but after a few weeks I put a Fastman o2 simm on there as I figured I minus well use it instead of buying a new o2 sensor as they were similar in price then I wouldn't have to worry about it throwing a code.

 

Mine has been fine since I did the non fouler trick for 5 bucks. But I'm calling Magna flow when I get a chance, because it just simply shouldn't do it. So I want a good part that I paid, not some defective design. I got to remember where I saw this info!LOL