Hi.

My catalytic converter spat it the other day and now I'm getting that ugly rattling noise and car runs slower probably due to the loss in back pressure. An exhaust place offered me $250 to replace it with a high flow car (probably one they manufacture). Is that a reasonable price?
More importantly will the high flow cat be better than a standard cat, as I hate not having the right low end back pressure.
What cats are people running? I have a D16Y8 which is only SOHC VTi. Only mods I have are whale chamber air filter with pod and a 2inch press bent cat back system.

Thanks.