this is why TTi headers suck for power

You people that are poo pooing the fact that the TTi's were way down, roughly 5%, are forgetting that these were on a W2 headed engine. I think even TTi uses "race" on their site to describe the 1 7/8" w2 flanged headers that were used. Not my description of the parts they are selling.

I'm sorry, but I don't consider W2 headed engine a "for the masses" build.

Agreed, comparing the 1 5/8-1 3/4 steps to hedmans and SC, would not be a valid comparison. This is not the case here.

Read it and weep...
http://www.ttiexhaust.com/Header-340W2/340W2-178.htm