New Combo...What do you think.
I wish you well on achieving your 550 goal.
I think you should be able to do it.
Midlength headers/ y pipe with high flow cats, loud mouth catback, 3.23 gears, 3800 yank unlocked/ stock motor/ 150 wet shot.. put down 475 rwhp and I never found out my torque numbers.
So 550 is obtainable I would guess.


