What size injectors are reccomended on a stock 12v with a 5" straight turbo back exhaust, BHAF and a stock turbo (welded waste gate) that I'm upgrading to an hx 40 or an hx 35/40 hybrid? I want to get the most out of the almost stock set up. Im also buying head bolts.

 

I'd look into transmission upgrades before looking at injectors... It doesn't take much to fry a auto or a clutch...

 

yeah smart thing would be tranny first and then go from there but on injectors i'd recomend SDX (site sponsor) so far they seem to be the injector of choice

 

5x12 or 5x14 sdx

 

SDX 5x12s would be a good match up with an hx40. I think the 5x14s would be a little to much for it in terms of being able to control EGTs... But with the proper tuning, it could work out and make a nice running rig

 

Stock