having some trouble deciding on some LT headers
But to answer your question depends on you. You plan on keeping this car the rest of your life? Get stainless steel headers. Kooks/QTP/Stainless Works. Maybe have this car 5-7 years, get Pacesetters/Any other mild steel headers. Mild/Aluminized will rust eventually, so be prepared for that. How soon it happens depends on geographic location and driving conditions. Snow, rain, whatever. Most longtubes are available with provisions as you wish to retain emissions.
I highly recommend Kooks. But as you nose around the site and do some searching, you'll find all kinds of POLLS and threads with varied accounts on different headers.
Good luck!!
-J


