theandrewo

'08 LS3 m6. Currently running P1SC1 w/4.63" pulley pushing about 4lbs of boost. Belt was slipping so I may get a little more boost when I replace it. Car is otherwise stock (w/NPP). I'd like to end up with ≥600rwhp (it's at 500rwhp as it sits).


I plan to add:
-4.38" pulley (recommended by Procharger tech - should bump me up to around 7lbs)
-1 7/8" LTH
-3" catless X-pipe
-re-tune

Two questions:
1) Do I need to get injectors? And what rating if so?

2) I'd like to throw on the LTH and xpipe right now purely for the sound, but it will be a couple months before I pulley down and retune. Is this safe to do with boost? Or should I wait and do it all at once?

C U IN REARVEIW

Tune would need to be adjusted after header install

g23crawler

Dont need injectors for 600, but you would need at least a BAP or meth. Dads car has meth and a P1 making 605hp at the wheels.