Just a "by the way," the TOGs can be ceramic coated if you want to. Pretty good write up here.

http://www.pacific-audio.com/perform...es/189735.html

 

I'd opt for TOG ones. The build quality is outstanding from what I have been reading about them. A send out to JetHot and you have probably the most durable headers around

 

how much rwhp can I expect if I go with the ASM's?

 

I'd say 15-25rwhp depending on if you run duals, have cats, what mufflers, etc. It will be subjective

 

I was facing the same dilemna a while back when I bought my ASMs from Tbyrne. Personally I would go with the ASMs. Their quality is AWESOME and leaves nothing to be desired. I couldnt imagine a much better header.

The ASMs made a noticealbe seat of the pants AND dyno proven power increase for me. I gained at LEAST 30hp to the wheels on my 03 with a UPD intake, corsa exhaust and ASM headers. I wouldnt be surprised if the ASMs accounted for at least 12-15rwhp.

I decided to go with the the ASMs because they have been used by more 5.3 users AND are a true long tube header unlike the TOGs.

 

I Think I will be getting my TOG's coated before I put them back on.

I think they weren't keeping the o2's hot enough and were throwing codes and such. Just another thought to throw out.

I will also agree with Hit Man .. they are awsome build quality. I still think the lifetime warranty has something to be said.

 

Ok.. I just placed the order right now. Hope these header won't dissapoint me.

 

good that you ordered them. but which ones? so now your gonna be right at par with me with the mods, now we can run them to see the dif between 01 and 02..

how about the pulley, have you got it yet?

 

I got the ASM's. As far the pulley goes, donkey express should be bringing it in tommorow.