Stillen or F.I. exhaust for me??? help me choose

[Dixnot]

Gains is obviously what im after first and foremost. Being that they are both pretty similar in gains and price, they are the 2 i have narrowed my choices down to. Ill be doing a CBE and HFC purchase at the same time.

I basically and trying to decide if the now 15ish week wait time for a F.I is worth it. I like the lower tones Stillen seems to make but seems to lack unless u really get into the throttle. F.I makes up in that area and sounds like it always means business.

I after spending a few weeks in these forums and new to the 370z, i really respect the opinions of you guys and hope i get some good info i havent thought about or read about in here to help me make my choice.