Sup guys, I've been running a testpipe for a while now. Since I have had the testpipe on my car, my engine has begun to go bad. I'm blowing smoke, most likely due to bad piston rings. I want to run a high flow cat these days because I'm hearing a lot about random cat checks in my city, but my friend tells me that if i try to put a cat/high flow cat on my car with my engine burning oil, the burnt oil will eat my cat up in an instant. Does anyone know if this is true? I want to be street legal, and i sure as hell dont want to pay a several thousand dollar fine and have my car impounded. Thanks.

 

Im not completly sure but it seems like that the high flow cat will wear out faster since your blowing more smoke.

Ali