I'm just glad you guys are willing to do the research and considering cats over test pipes - whatever your motivation. Taking out your cats on a daily driver really pollutes the heck out of the air we breath. I'd make a reasonable guess that a high flow cat will give you the same gains and hopefully not weigh or cost too much more.

Carribean Blue G35S 5AT Cloth/Sport Package wheels/Invinca-Shield/LOTS of Scotchgard

 

Sorry jburnham...I'll put that cat right back in my 62 Galaxie...oh wait, I don't have one. LOL

Sorry man! I'll worry about a passenger vehicle sans-cat emissions when school buses, state / city vehicles & big rigs get emission controls on them.

-T

'03 Sedan 5a: Silver/Graphite, Premium, Aero/Body, Sport, Nav
SolarGard Quant. Tint 19% r, 28% fr, & just a tad more than 4" of 50% on the windshield