Iwas looking on the jegs website and thy have a MAF that replaces the stock and says it gives 10hp over stock, has any one tried one. I moded the one on my 96 blazer and you could feel the diff at the pedal but im not sure about doing it to the plastic one on my G8. I kmow its pretty expensive for only 10 hp.

http://www.jegs.com/webapp/wcs/stores/servlet/MkMdlYrSearchCmd?storeId=10001&catalogId=10002&langId=-1&N=1573760+4294964256&Ne=1147708&searchType=MkMdlYrSearch