gibson headers
05-07-2003, 11:00 PM
#11
TECH Junkie
Re: gibson headers
The Thorleys will probably offer a good hp return for the money spent.I have'nt seen any dyno results, but from my previous experience with tri-wye headers is that they will perform as well in the low and mid-range as the 4 into 1 design but give up a little in the upper rpm range.Maybe someone that is actually has a set on their truck will post a comment.
05-07-2003, 11:00 PM
#12
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Re: gibson headers
there is no listing for thourley headers for a 5.3 long tube for a truck any more help please do they make them and are they worth a damn
05-07-2003, 11:14 PM
#13
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05-08-2003, 02:10 AM
#14
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Re: gibson headers
If I had done it all over again I probley would have put on other guys headers, why, for a small company they seam to do alot of R&D work and are at SEMA shows. And I belive have 50 state emissions compliance. I'm just too lazy to do the least amount of fab work, I don't half *** things.
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