Catalytic Converter to match Full Race Exhaust?

[Magpagaling]

Car: 2011 Si Coupe

Does anyone have knowledge of a catalytic converter with a 3" opening to match a Full Race Exhaust system.

Soon I will be boosted and I want to get everything to a 3" diameter and the only thing left is a Performance catalytic converter (if there is such a thing).

[TypeREgg]

U can get a high flow cat that's 3" from flowmaster.

[ksboi]

Just delete the cat or buy high flow cat its basicly a test pipe.

[redbone]

you're not going to want a cat in there with boost as that will restrict the hell out of your exhaust flow. plus flashpro can disable your 2ndary O2 neway.

[aflo026]

If your concerned about emissions, You will pass as long as you have no CEL and Flashpro can disable your O2 sensor like redbone said. I had to emission my 08 si last month and its turbo all they did was obd2 reader and gas cap check

[Magpagaling]

Running on a turbo with out a cat will not kill my engine? I thought that was the point of having a cat.

[redbone]

the point of having a cat is to keep emissions down. you don't want restrictions in your exhaust especially if you are boosting. you're gonna have to get that shit tuned to run anyway regardless