Turbo question about trims

[Boosted 86 T]

I was just wondering what the different trims mean when you guys say P trim or Q trim or whatever else there is. I am familuar with turbos but still learnin about them

 

[Otto J]

Most time you see this,It is the type of exhaust wheel,Q makes more power than a P,But on certain combos P is better(Q makes more top end power),P normally spools quicker

 

[John Wilde]

Otto is correct, there are also S,R in the T04 Frame and F and G in the T06.