Left side exhaust is blowing smoke. Pretty sure it is turbo. I'm looking at Godspeed GSP-600 turbos. Rated up to 600HP set at 12psi, claims to be biggest bolt on,no mod needed, available. $785 for new pair. I'm aware of some incidentals. Also installing complete premium timing belt kit. Honestly if I get between 400-500rwhp I'll be happy for now. So, will these turbos work with out boost controller for my stage 1 set up?