MAF vs 2.5 conversion vs turbo vs Engine swap

[Nexstage]

I live in Montreal so the car is driven 7 months per year.

I track the car 3 to 4 times per year.

I know that the options in the title are not comparable (power and price).

I planned on getting the Miller MAF kit but might be inclined in a turbo system...

Which one would you do or did...any regrets?

[Brendan]

In order to do a turbo system, you need a standalone EMS running MAF or MAP first. It's not one or the other - it's both... In order to get the most out of a 2.5, you need some sort of fuel control (Standalone or Piggyback running Alpha-N, MAP or MAF...) A standalone offers the most flexibility, but is the most complex...

So, might want to do some searching, and reading, and double your budget...