MR2ner

It has been discussed on many forums for several years and all experts agree that you should remove the pre-catalytic converters that are in the Exhaust Manifold.  Here is a brief summary of the problem…  Oil consumption ends up making its way to the honeycomb material of the car and causes it to break up  over time.  Then, some of these solid particles (from the cat) make their way back into the combustion chamber and cause catastrophic engine failure.