HKS Drager

[LiU]

Hi I have a HKS Drager on my 96 240sx.... I've been thinking about selling it to get an Apex N1 (single tip)..... I was wondering has anyone dyno-tested the drager (is it a good exhaust?)...if it is I'll keep it....... for some reason apex n1 costs 450 and hks hiper costs 500ish while a drager runs up tehre at 600.... I thought the more $$ it is the better it is but now I'm having doubts..... can someone tell me? btw the apexi n1's pipe's diameter is 10 mm longer than the drager's... (its quiet as hell)