The adapter plates are very nice! I have them bolted on to my brand new S15 T28. Right now I'm just waiting on a few more parts to come in, and it should be ready to bolt on. I do need to figure out what I'm going to do to replace the stock rubber intake hose, though since I'll be converting to a Z MAF, and the MAF has a larger outlet than the SR MAF (2.5" versus 3")
EDIT:Tomei makes an stepping adapted to allow you to clamp a Z MAF to the stock SR intake hose.
http://www.frsport.com/Tomei-8....html
it's by far cheaper than the greddy unit, but that's still a lot of money to pay for a 30 dollar piece of aluminum and a 10 dollar silicon hose.