Originally Posted by BLM

Well all will surely appreciate the work you put in to amassing such a database. It will certainly benefit us all and hopefully foster competition and competitive pricing amongst vendors. And I'm well aware that the 302 is meaningless without a baseline and the value itself is contingent upon corrective factors. But thank you for pointing that out to those who may not know how many variables go into dyno results. I'm also assuming that the major factor in exhaust power output will be the diameter of the piping and the presence/absence of restrictive elements such as curvature of the piping itself and presence/absence of catalytic converters. I think for most of us the sound and looks play a greater role in deciding if and what brand of aftermarket exhaust to purchase, as the performance increases are likely to be very similar.

PS thanks to your research you have inspired me to save the $300 and go with hoses and K&N drop-ins instead of the Stillen CAI.