Just had my 16T upgraded to the 19T at Alamo industries. They have done a number of the upgrades on the MCX turbos and may be able to tell you where to source parts for the Mitsu. turbo's. I know they are nowhere close to you but give them a call and they may be able to steer you in the right direction. Bay 30, 5225 - 6th Street, NE, Calgary, AB T2K 5Y4
Telephone: 403-274-6211 Facsimile: 403-275-4600