I am pretty new to this so please excuse my stupidity. I want to get better milage along with some more HP out of my 05 crew 5.4L 4X4. I dont want to make my truck too loud but would like for my truck to sound like it has some power when I get on it. Basically I want it to sound more like a sports car not a Harley. I am in sales and have customers in the truck on occasion so I might be able to live with the truck being a little loud as long as it is not loud in the cab.

I am leaning towards a maganflow. I also think I will just have a shop here bend the pipes for me rather than pay for a catback kit. What setup specifically have others used to achieve what I am looking for.

I have read where others suggest a Xpipe. I have no idea what this is and what it will do for me.

Can I go with true dual on my truck or is SI/DO the only option.

What difference will dumping, in front of or behind the tire, straight out the back or angled out the back make other than cosmetic.