losing your afm for a map sensor Options

[mk7celica]

hello i am new to the site and have a 1994 gt coupe with a 3sgte swap that was just finished a few months ago, by scc.
i have added a mbc, full 3inch exhaust and down pipe, and some other odds and ends. but i have read about getting a map sensor and getting rid of you afm. is this to be done with a ems install or can you do it with factory ecu ect.?

what benifits will i get with a 1.8 bar sensor or what ever not sure what out there or what i need.

and 1 last thing i want a better turbo than my ct26. i have a fcd so the presure i want to run is 15-17PSI at the track only and 12-13 PSI max fornot aT TRACK. RIGHT NOW WITH MY STOCK CT26 AFTER 15 PSI IT SUCKS. SO I WAS LOOKING AT A CT27 FROM ATS BUT NOT SURE WHAT HP GAINS I WILL GET. ANY IDEAS ON WHAT TURBO TO GET THANKS

[Cuts_the_Pilot]

15 psi+ is serious business for a ct26, i hope for your sake its a steel wheel.

dont fnck around with higflows. Spend the money and get an aftermarket snail. If your only looking for a mild increase something like a disco potato from garrett would be an ideal starting point. You can get the adapter plate so you can use the stock manifold, they have internal gates and would still be as responsive as your stocker.