Sorry I do not know how much you know but...... if you are thinking of getting a bigger turbo since you need one anyway you should probably do a bit of research. You should definitely learn to read a compressor map so you can understand how a given turbo will respond and how all the trade off's work. This is a start http://www.gnttype.org/techarea/turbo/turboflow.html also http://www.stealth316.com/2-3s-compflowmaps.htm Obviously it is based around the mitsubishi gto but the principals are the same. The stock ct26 is round about a T3 40 to 44 trim i think i read somewhere just for comparison. If you pm me I can also send you a basic excel spreadsheet which will allow you to calculate all the values needed to use a given compressor map. There are also turbine maps which are very important but these are almost completely unavailable or do not exist. Garrett have some grude ones for their turbos but they are incomplete and not very useful.alltrac7":1upgfz27 said::shrug: