What year is the Supra? Is it the Twin Turbo model, or the base model?
Supra's have very strong engines that could handle lots of power.
For exhaust, look for HKS, Injen, Invidia, GReddy.
HKS is the best, but very expensive.
For Intake, either AEM or Injen. They are the best brands for Intake.
Get a Turbo Kit. They are extremely expensive, but it is all worth it when you get an extra 500HP+ added to whatever you already have.
http://www.turbokits.com/supra_turbo_kits.html
I have never heard of Boost Logic. They must be one of those smaller, less popular brands.
Go to youtube and search "Supra from Hell"
It is a video shot at night of a white Supra. It is extremely fast. 1000HP.