I'm looking to get a high flow cat for my turbo Y8. I was looking at test pipes but I don't want the smell or the loudness. What kind of gains will I see from running a high flow cat @ 9psi? What's a good cat to get? I heard carsound cats are good. Where could I pick one up with flanges already on?

 

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Doesn't importparts carry them?

 

i just went to magnaflows website and clicked on the carsound cat section. they have links to muffler shops that carry it. i just paid $115 for them to weld it on with flanges.