Best performance cat?

[RainierHooker]

I'm pretty sure my cat is toast and I am gonna be doing a full exhaust system for my car in the next year so I figured now is the time to get rolling.
As is sits now the car is just a bone-stock eta but hopefully when I come back from overseas I'll be dropping my 2.7 stroker in the car. I plan on doing an IE catback with IE headers spliced into an 'i' front section with that engine.
Any suggestions for replaceing my mid section and cat with something that can be used effectively down the road with the headers and cat back? I was thining of getting one of the complete 'i' replacement cats from pelican (I think they are made by DEC), but I havent heard anything about the performance of these of really any other cats out there...

[psyber_0ptix]

Are you against getting a universal and having it welded in?

metal substrate > any ceramic matrix

It's as close to a straight pipe as you can get, while heating up faster and being more efficient than a ceramic cat.

[RainierHooker]

I was hoping for as close to a bolt-in swap as possable, since my stroker is still a ways away from going into the car and since I use the car as my daily, I can't really have it out of service for more than a long weekend. I'm on mandatory overtime, with no end in sight, at work at the moment, so it is really hard to get anything done during the week.
Maybe I'll just have to find the time to head down to my local exhaust sho and see what they can fab-up...

[RainierHooker]

So, just looked up metalic Magnaflow cats...

Suggest going with a y-pipes on either end of a single medium sized metallic (like the 59925) or staying dual to the rear section through two small mettalics (like the 59905)?

[e30polak]

Used to run this on my car, now I'm catless. It's not legal for emissions testing, but they have some by Vibrant on the same site which are.

http://www.verociousmotorsports.com/Shop-by-Category/Catalytic-Converters_2/Metal-Core-High-Flow-Catalytic-Converter

[RainierHooker]

So I think I'm gonna go with a Magnaflow Spun-Metallic cat (planetmagnaflow has them pretty cheap), you think there would be any advantage in running two smaller ones on individual pipes to a single with Y-pipes? Mind you, the car won't be a track car or anything silly, I just want to get as much out of my -731 Headed 2.7 as I can, that and the set-up must mate to the IE catback which is dual pipes.
Obviously the single would be cheaper, but not by much when you factor in the cost of the Y's...