2007 300c catalytic converter delete? Looking for pros and cons of deleting the cats. Thank you.

 

Well, obviously deleting the cats won't really accomplish much but a stench from behind like an older Chevy truck. The small HP gains are some you won't even feel in the car. At least that's my observation. The newer cats are not nearly as restrictive as the old '70s and '80s "can of pellets" style of converters. I mean, if they were choking your exhaust it would be affecting MPG which is what the car manufacturers are trying to make the best they can.

I say leave them on and do a free flowing cat-back to further increase the efficiency and get a bit more power and more MPG to boot. If you keep your boot out of the water pump lol.

Jeff

 

Thanks. I'll look into it. I've done a resonator delete and replaced the suitcase with two flowmaster super 10s but was told it would make it sound way better if I delete the cats. Just wanted to know if it would do major damage or not since I'm sure it would throw off the oxygen sensors.