I'm not a Cat expert...but isn't it amazing that these companies that sell these bypass pipes will tell you that the secondary cats are there for no good reason...but Porsche had to put them there for some good reason...and they tell you that you will pass emissions...and then you don't pass emissions...
Man...it seems you cannot mess much with this car unless you want a BIG headache. Everything seems like it was meant to be there...except the SNORKEL!!! RIP IT OFF!!
