alicat

Hi all,Does anyone know of a performance muffler,that has 3" inlet and dual 3" outlet.The muffler on my car is 2.5" inlet,and dual 2.25" outlets.I dont know if it's a stock muffler,the car is a 85 Z28.Muffler has inlet and one outlet on the right,and the other outlet on the left.I'm putting on a custom 3" stainless exhaust,and wanted to retain 3" from the y pipe back.All the ones i've been interested in seem to be 3" in and 2.5"out,but nothing in 3" and 3".
Thanks for any help,

Alicat.