Iplan on getting either a flowmaster super 44 or a flowmaster 40 series. What are the inlet/outlet dimensions for stock, or should i go biggerand have a shop do it, ifso howwhich size?also should i keep it as one outlet or dual outlets? Which would sound deeper?

EDIT: I forgot to mention its a 1995 Blazer 4dr 4wd

 

i just got a super 44 for my blazer (in process of installing it) and i think it'll sound really good. the biggest diameter u should go is 2.5 when u get to 3 its a lil too big for these engines. personally i would just stay w/ single outlet not sure how it effects the sound