2.5 or 3.0 exhaust

[martinoledad]

Im going to redue my exhaust next summer(take me that long to save up) but i was bored so i was thinking about it. If available yet i want the dynatech longtube header kit, except the y pipe. I want to put in a x-pipe instead of the true duals to gain that low end torque that all of you guys claim im losing. also i want flowmasters instead of the magnaflows i have on now(to quiet for me) but since im getting the x-pipe would it be ok to have the 3 inch exhaust pipe, the reason i want 3inch is because dad has that on his 04 F150 and it sounds amazing(flowmasters). or should i just stick with the 2.5inch exhaust

also if i have enough saved up i want the 80mm throttle body and ram air hood and getting my tunes redone.