Turbo with a cat question

[ro.sniper]

Ok here goes... I live in Ontario so putting a turbo on the car is not that big of a problem... my problem is that cops are pretty anal about cars that don't pass emissions. If I put a high flow cat custom welded, will it decrease my numbers much? I just want to know to see what costs and parts I would need. I plan on getting a turbo kit soon. For example if the car puts down 210whp without cat what number would I expect with a cat?

[darkrom]

As far as I know you shouldn't lose much. I guess I never really thought about this at all. I was always planning on using a high flow cat with a turbo kit in the near future.

[ro.sniper]

Ya see the thing is on my 99 civic, I had headers and a highflow cat and there was no smell no CEL and very little pollution and it passed the drivetest in Ontario so I know it worked well. I just would like the car to be as "legal" as possible in case anyone harasses me, I'll still be withing "smog" specs

[07CivicMD]

You will lose whp with the cat on any setup. With a turbo setup make sure you don't have anti-lag setup or you will burn the cat out!

[darkrom]

Go ahead and burn the cat out....who cares then its a useless cat that makes it look like you have a cat

[24boosted]

From what I have gathered from members who got a test pipe gained an additional 20-30 whp. So you would probably wouldn't gain as much with a high flow cat. I'm in the process of having a custom 3" Carsound cat put together for mine.