[drburton]

I would agree with you that the dyno test can vary greatly dependent on a number of factors. Therefore, the actual numbers in the result are subject to debate. I wouldn't think it was smart to say I'm going to get xHP gain for this mod b/c someone's dyno said so (ie 22hp for Miltek header and exhaust)

However, if you review the many modification posts and related dynos you can start to get a pretty good read on what mods create the greatest impact. So if you have money to burn and specifically are looking for a HP gain, i think it is reasonable to say you will get the best results investing in a new header and exhaust versus the other mod options (with the exception of a new engine).

The point I was making in my earlier post was just that 'directionally' it seems the exhaust/header mod produces the best results.