Impact of removing catalytic converter

[slurp812]

Originally Posted by dkjones96

According to 95% of the people that seem to find their way here, you'll lose FE because of a loss of back-pressure.

My G/F's mileage has gone up recently, her cat is clogged

[ShadowWorks]

You don't want back pressure in a turbo charged engines, the back pressure your talking about helps scavenge the exhaust gas from the valves, this has more to do with the exhaust diameter.