Best headers for a 5.3?
#1
Ive been thinking of getting a set of headers to go with my new PCM and Ram Air intake, but i do not know which company to go with. I want the best bang for the buck, any help would be appreciated. Also if there is another mod that would give me more performance or would compliment a new Nelson PCM and Ram air i would love to hear your opinions, thanks guys
#4
Ive got Thorley headers and they are awesome. The midrange power gain is phenomenal. I had 100% TQMT added back in so I cant really give an accurate depiction of power increases there, but down low and midrange is an unbelievable difference. 
BTW I think they are like $429 for the chrome ones.

BTW I think they are like $429 for the chrome ones.
#5
Dynatech Supermaxx long tubes are nice, but probably the most expensive. You get the headers, gaskets, bolts, new Ypipe, high flow cats, and all is high quality stainless throughout. I just made some pretty nice numbers on the dyno with the only significant power modifications being the Radix (obviously), and the headers+exhaust system.
I had some clearance issues with mine, but overall its a high quality product.
I had some clearance issues with mine, but overall its a high quality product.
#6
I went with the Azsm Lt headers,and i am very pleased with them.Excelent fit and finish and great mid and top end gains,plus they are ceramic coated,unlike the dynomaxx.The factory cats are pretty high flow as is.So take the $350 yu save and put it towards a nelson tune.Ps if yu have a 4x4 the install of any long tube header esp the passenger side is a pita.
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