flowmaster on yukon 5.3

[basshertz]

hi everyone my cousin wants to put a flowmaster on his 02 yukon 5.3L he wants a 44 series but what size inlet or outlet do we need to buy does it have a 2.50" pipe or 2.25 and which one do we get the one with the inlet on the corner or middle and same for outlet ? any input is appreciated and does any one know what the average cost a muffler shop cost to get it welded on there and installed ?

 

[blueflamed03]

Mine is an 03 Yukon, 3" in and dual 2.5" out....just may need to crawl under and see. Just muffler replacement, under $50