^Where is your proof? Anyone can post on the internet that the 328 cats are only 3 inches wide, but it does not make it true. If you want people to believe what you are saying, then you must show us evidence that backs up your 328 exhaust size clams. Then you must also provide us with reliable 323 exhaust numbers.
Alex//1999 323is - power e46 M3 seats, style 43 rims, 328 exhaust, Z3 rack, Bilstein PSS coilovers
“We got about ten minutes before this entire county is up in flames. If you want to live, you’d better step on the gas! Oh wait is this a Tesla? Sh!t! Well, step on the prissy peddle, we're going to die!” – Cartman