Upgrade advice for a beginner (HELP)

[NotchJohnson]

Project, yeah I do like the sound of the prochamber. I have heard that it is slightly quieter than the h-pipe, but I dont mind.

1Bad89lx, sorry if it seemd as though I said the heads need to come off to change the lower, they dont. Dont sell yoiurself short by thinking you cant do the lower yourself. It is really pretty easy. Alot of stuff needs to be disconnected, but its a no briner when it comes to putting it back on. Dont get discouraged when you see the fuel rails, injector harnesses, and injectors. The injectors pop right out, and I didn not even have to disconnect the fuel lines, i just moved the whole fuel rail/injector assembly in one piece, and carefully placed it in front of the engine to get it out of the way. Also, dont worry about changing heads either, they too are no biggie.