headers, are they worth it

[04silverado1500]

hey everyone im looking into buying some headers for my truck i want more power haha. anyways i have an 04 1/2 ton with the 5.3 and with dual exhaust no mufflers. i was wondering if doing headers was worth it and how hard would it be to do myself if not myself how much would it cost. i would like to know of a specific brand, style and price of these. can i do these with highflow cats if i have no mufflers and will i not burn valves im really concerned about this. will i need to do a ram air intake? im not really sure although it looks like ill be spending inbetween 500-1500 to buy the headers plus possibly install and a ram air is it worth it?

[99Silver6.0]

Only long tubes are worth it.

 

http://www.gm-trucks.com/forums/index.php?showtopic=62723

[xsports33]

Dynatech or Stainless Steel Works are the higher end "top quality" LTs. A lot of people run Pacesetters and have had good luck with them.