1/4 mile times with pi head swap

[Mbachota97]

I was wondering what increases have people found with the whole pi head swap.

 

[281powered]

well i didn't have the pi heads but had the camms an intake and and the minor mods in my sig i gained like 6 mph in the 1/4 and with more practice and cooler weather i would have squeezed 1 or 2 mph more out of her. adding the pi shit feels like you added a 50 shot of the juice, best bang for the buck you can do to your car imo.