i agree with you, i wouldn't have mind seeing a dyno of a modded motor also. our header would have shown better increases with a modded motor. but that was the dyno and info i was given. hell, i couldn't even get the actually dyno sheet, it was faxed to me.

on another note concerning the header. our header (street collector) was designed to beat the jdm 4-1 and at the same time be in a price range that is reasonable.
on custom built headers ... racers like bisi (who used hytech before) and erick (who used smsp) switched to our fabricator for a reason. their headers are custom made to the engine specs ... for those looking to compare smsp/hytech with ours.