Ahh nice, but if I was you I really wouldnt worry about a 20g. You will be done with that turbo as quick as you were with the 16g. I would look into getting a 60 trim with a mitsu hotside. Turbo will be big enough to make great top end but will also have the spool and street ability almost like a 16g with the mitsu exhaust housing on it. Thats just my opinion, if you ever look into the efficeny (sp) map on a 20g its not much better then a 16g. And I think that it only flows maybe 35cfm`s more too. If im wrong someone please chime in. I strictly going off memory of what I read a couple of years ago. Didnt verify.