can anyone guess as to how much horsepower i am actually loosing down low by running my straight pipes, they are not true duals, where my flowmaster used to be i had a ypipe put in and ran the pipes out each side behind the wheels... Will i feel a sotp difference by going with a magnaflow? or dynomax bullet, and wouldnt going to a bullet or similar muffler be almost exactly like the straight pipes? lack of back pressure=poor low end? thanks again guys im still trying to figure out exactly what im gonna do Later