You can ask for Tahir at shershah, hes known for mitsubishi engines. You can easily extract 300hp atleast. You can look for F5M33-2-SNZ trans, it came on a fwd 4g63 turbo produced in 1991. This is the only one i know of which came as a fwd and on a turbo 4g63, would be perfect! But there are many others which will do the job. I also have serial numbers of trannys which came with NA 4g63, F5M22-1-XQZK (1991), F5M21-2-XPZK (1992), F5M22-1-XPZK (1992). But the rule of thumb is to get the most bulky looking tranny, the bigger the housing, the stronger it is likely to be. Do not buy trannys which have serials starting with W5M... They are awd trannies.