bugy

hi guys, this is a 2008 chevy truck 4 door, 5.3L engine, i'm getting a pair of headers for it, which primary and collector tube size should i go for? full stock, no mods are done, daily use, just looking for better sound and better performance of course.
thanks

hsvgtsr

Get your self a nice set of 1 7/8 headers with a 3 inch collector that way you have room to move when you get board and want more its a slippery slope

bugy

aren't they too big for a 5.3L engine with no mods? no mods thought in future neither... what do you think?