Re: tb size on 5.7 hemi
THe OD is 3 3/8 "; I just installed an MM CNC ported TB and have the stocker on the bench. THe stock intake is a true CAI whereas a tube with a cone is a hot air intake. When the engine is warmed up, underhood temps are high = it loses considerable HP versus stock. Second, you need a very solid (metal or plastic) tube, or else the tube will resonate. Just keep it stock and it will drive better and quieter. Even the K & N intake is a hot air intake, plus it loses low end torque versus stock, which is where the motor spend the majority of its time.
2006 GC Overland QD II
5.7 Hemi, Modern Muscle 85 mm CNC ported TB, Apexi super voltage stabilizer, Billet Tech. Catch Can, Koni FSD shocks/struts, SRT8 sway bars, Cooper Discoverer SRX 255/65/17, Amsoil fluids, Diablosport Intune CMR tuned by Hemifever tuning.