I'm going to order some headers for my 03 ls 5.3 reg cab in everyones opinion what are the top 3 headers on the market. thanks for the info.

 

1. Arizona Speed & Marine
2. Dean Lapolle
3. sort of a toss up here. theres a few new companies with some great looking headers but noone has tried them out to get some dyno numbers.
a couple companies
Doug Thorley and Finish line performance
other peoples opinions may vary but im sure it wont be by much

 

My #1-3 choice would all be the same: Arizona Speed & Marine. I still just shake my head when I think about the HP those things are puttin' out. I gained 29 RWHP from a set of headers for christ sake! I had a set of JBA shorties on before, and they didn't do jack. You'll notice the ASM headers the moment you get them on.

 

where can we find some info on the ASM headers

 

thanks ajax & quick for the info I think ill go with the as&m

 

thanks ajax & quick for the info I think ill go with the as&m <img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" />