i have been thinking about getting a new system done by powerflow as it the only company around my area. i was thinking about getting a 2.5" s/s from the manifold with a 200cell cat with a centre section and a twin/quad backbox but from the centre setion to the backbox should it be a 2.5" or a 2"to the tail pipes. i am justing thinkg about back pressure. and to get as much power as possible.
thanks