bahaha, you cant use that as a comparison.
i got my T5's and love em tho i do want some more topend so with some more mods ill get that, ive heard people run t6's on ported motors and are happy with the results maybe there in denial, i dont know. Other pipes i should of considered were PT HiRevs and DMC 916's there all in the same ball park as the T5's but i still dont know which have a better top end out of those 3.
you need to know where you want your power low mid top and find what pipe suits you, like for my self i wanted mid-top pipe but i wanted to find the most topend mid-top pipe. if you know what i mean.