my aem v2 wont fit my gsr skunk2 so im looking for a diffrent cheap cia on ebay and dont know which to go with. any experiece or facts with these product will help me choose the right one and if they are no comparrison in hp gains to a brand name one, i will have to buy a ls or type r aem cai thanks. correct me if im wrong, ls intake pipe diameter is 2 3/4 inch and type r is 3 inch.