As many of you know, my engine was destroyed 18 months ago when one of my Dynatech high-flow catalytic converters failed, causing a blockage of the exhaust and excessive pressure in the engine. And since then, I have heard of a couple others instances of failed Dynatech cats.

Well, in the November 2007 issue of Hot Rod magazine, they were testing a 6.0L GM motor for some performance upgrades. The setup included Dynatech headers and cats for the dyno testing. On page 134 of the magazine, they say: "... at this time one of the high-flow catalytic converters went south. They were removed from here on out."

So, I'll say it again...





DON'T BUY DYNATECH!!!

 

That sucks Don. I will be sure to steer clear of that company. Lucky for me I live in Oklahoma where the emmission laws are very relaxed. No inspections. I run with no cats all the time.

 

Well this truly sucks to hear. I have been looking into the long tube setup for my F-150 but hearing this type of info is very unsettling. I do however know a few guys running the setup I am looking at and they have nothing but rave reviews of it.

http://www.afabcorp.com/AFCO_Dynatec...Code=ford-f150

 

Who manufactures their cats?

 

That is very disturbing. I was set on the Dynatechs. Maybe I'll just go off-road then.