is this a high flow cat?????
 

my ****ing exaust got swallowed by a bump in the road busted my mid pipe !!!!!!! right off behind the catalytic convertyer!!!! the top one is the old cat and the new one i had kicking round is on the bottom is it a high flow cat??? it looks alot shorter and different than the stock one ?

After market high flow cats do look differnt then the stock ones, but if it's for your car they should be the sasme size (so it bolts in) might need to do some piping and welding to get it too fit properly.
I belive that a high flow cat you can see light thru it better then a stock one, more flow, but can't really compare it to a stock one - just 'casue its usally got crap packed into it over time.

it looks like a universal cat
something u buy off the shelf as a stock replacement but not flanged.

As long as the inlet and outlet are larger than stock - 2" or better, you'll be fine. Looks like you'll have some welding to do..

my cat did the same thing a week or two ago... its about draggin pipe

my resonator has a hole in it too so i got 4 feet of pipe and it is all connected together WOW sure is nice to hear the engine now !!!!