Originally Posted by Izach26
I only have the MRT2 Axel back, and intake with that i should be at around 340-345??
Just a guess. You need to dyno to get a rough idea. Figuring 15% drivetrain loss, then 340 Crank HP should be about 289 at the wheels. There's at least one that made 270 with just a CAI, but we don't know his baseline. It seems possible you could have 340 at the crank with the better flowing MRT2, but you might have picked up nothing. Really, the best single gain on an LFX is with a tune. But that will void your warranty, so you are very limited in what you can do.