Just wondering what you noticed the most power with I have some goodies on my t type I am thinking about a intake and plenum maybe mine is still stock.
Turbo,downpipe,injectors, fuel pump, valve springs, innercooler upgrade. Intake and plenum are not where you need to start theres no big gains there with a stock motor. Figure out how much you want to spend on your first upgrades and we can steer you in the right direction.
The car has a cam ported heads,injectors.pump,Hotwire kit, adjustable mass air, turbo tweak chip, exhaust, down pipe, scan master and I think some other things. Guy said it has ran 11.90 not sure if true but what I was told.
Look up RJC Racing boost controller. It mounts in-line with your boost solenoid rubber line, Simple twist of it allows more Boost...Then you'll need, chip,exhaust,kn filter an fuel pump upgrade, Instant 12's in the 1/4 mile with 20 psi boost an 100 octane fuel. For now if you get one, don't go over 15psi boost,but it sure beats only 10-12psi stock.
When you hook it up, start testing with it Fully Closed..then turn it up by the numbers on it 1-2 at a time till get to 15psi on your boost gauge. Stop there till you get race gas, With race gas you can go to 20psi.