I dont have headers on yet, only performance mods are intake, inlet pipe, sho shop y-pipe, and borla 2.25 exhaust.
Not sure if you can see the plot, but its 166 hp 153 tq as the highs. I hope to gain more torque with my headers!
Also the backpressure myth is indeed a myth, svtdriver's car dyno'ed higher on both torque and HP with no exhaust
