Personally, I would go with the tried and true K&N filter. Then get a Hard UIP flanged for a Type-S. My K&N has had 2+years of HARD use and it still looks/works great!
On a side note, If I could do it again I'd buy a 1g BOV and crush it--believe it or not its alot higher quality than the typeS. The type S has a tendancy to strip out the threds on the adjusting screw, which is a total PITA. It also is a bit leaky. From my own personal experience I don't recommend many Greddy products...
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Black 98 GST missing her owner and looking for a new one...Inquiries welcome
