Well that looks like the same MAF the 4g63 uses... If it is... You should be able to use this adapter instead and save yourself some cash from the price of the one you showed us. Should be the same...
http://www.dsmparts.com/customer/pro...4&bestseller=Y
Then I would match it up with a K&N filter that fits that adapter. Here is one that will fix the inlet size and it doesn't look like you have much room for a long filter so I picked a shorter one.
http://www.summitracing.com/parts/KNN-RU-3110/?rtype=10
Hope all this helps ya!