Man im just gettin started but i wanted to know what u guys r doing (1 vehicle owners). I live in Mn so I have to deal with big temp changes (cold -25 (really) to up to 102f) , snow (2" deep too maybe over a foot deep in one storm) , Potholes(up to a foot deep, true man), Salt to keep the snow & ice in check (i have a 2000 ecsb with rust on the frame rails, unless this is common on hydroformed rails). Im really interested in exhaust system and header materials (thinking t-304 ss) ie supermaxx, borla, corsa, slp (does just everyone rip them because they are quiet or because they do not flow well. I really dont care about brand names just looking for the best/worst mods to do. P.S. Im not looking to lower my truck because of the snow and potholes (if anyone tells u awd drive is the way to go I say sand bags & u good to go). Also is a blower affected by below zero temps (removing my maf screen worked great untill temps dropped below 30 degrees and my gas milelage went from about 17.4 to 9 per gallon so I had to buy a new one off ebay .

 

Well mine is a TRUE daily driver, 120 mile a day comute.. Dont have the harsh winter here in Cali.. Cant tell by your post what you are really wanting to do..

 

Those headers you mentioned are not all thgat popular because there are cheaper and equivelant alternatives. As long as you have a decent set of headers coated, and done right, they shouldn't be bothered by the different elements up there.