My vp-44 is bad and I am looking to upgrade. I have a 4" MBRP exhaust, air intake and edge juice w/attitude. What would be the next logical step for more hp since I have to replace the vp-44 anyway? Thanks for the help

 

Injectors & turbocharger.
I replaced my VP44 with a stock rebuild back in Nov. with no issues yet but I won't recommend until it's ok for 6 months.