ok i have seen around my neighbor that some guys have there exhausts pointing at an angle. is this better? than the regular way. if yes why? because im going to put dual exhaust on my car but i dont know if to put them at an angle or straight.

Dont do it. I thought I already responded to something like this. Some cars can only fit the aftermarket exhausts like that, in other words theres not enough room for them to lay flat. I doesnt do anything for you, and it doesnt look nice either. If yours fit, go flat.