Lsj injectors with harness and zzp 3.1 pulley
 

Both obo. I'd like 70 shipped for the injectors and 15 for the pulley. 15 bucks for 20 hp on your lsj isn't a bad deal

What kind of injectors?

I shoulda of said Stock lsj injectors with 22k on them with harness. Sorry for the confusion

any kind of tune needed to use the 3.1 or coul i just slap it on and run?

3.1 is the size for GMS2.
You would need a tune along with 42# injectors, at the least, and S2 belt or alternative pulley solution.

grrrr damn, only thing i hate about this car is its sensitivity to engine mods that coencide with pcm

No you don't need a tune. Don't listen to him. The stock tune WILL not allow you to boost more then 12.5 (w.e. stock boost). If anything you'll get to max boost quicker. Highly recommend injectors and at least a reflash tho. I ran the 3.1 for 2 months on stock tune because I was building my stage kit. Nothing happened.

Really it's 1 less thing you have to install. The kny thing you can't do is run bigger injectors on stock tune. That's a biiiiiiiiiigggg no no