Help Me Baflle Out My Downpie Selection PLZ

[BigLGST]

Ok so I have my car that came with exhaust already, I believe its a Apexi Dunk Megaphone, says on the tip...Anyways its weird because it seems to go 2.5" from the cat and as it nears the tip it goes to 3" I really dont want to change my whole exhaust because it works good. Only thing is that its super quiet, Ive replaced the resonator and all and still not much sounds....anyways...I was lookin for a DP...but I dont know which one...not which one, which size. I was lookin into a 3" but will it fit onto my current exhaust? DOES IT MAKE NO SENSE TO GET A 3" DP SINCE MY EXHAUST STARTS AT 2.5" AT THE CAT?? Ive been dyin on this any Ive done search and I cant seem to find the answer...PLEASE MY FELLOW COMMUNITY...SOMEONE HELP A DSMER OUT!! Thanks!

BTW...mods are, intake, exhaust, B16G, BOV, fuel pump, MBC, HRC FMIC, more coming, Im aiming for mid to high 12s.

 

[greeneclipse]

You can buy a 2.5in dp or.....

If you want a 3in you would have to cut off the 2.5in reducer on the Dunk and weld on a 3in adapter. a muffler shop should be able to do this for you.