I understand you are new to posting, but these intakes and every other one have been out for a while. use the search feature and you will find plenty of threads about it to help make your decision.
Beyond newb.. just when I thought I could comprehend. JLT - the most respected 2003-4 cobra intake ever created. Although, I have to admit that the K&N is almost identical in horsepower - the JLT was of much higher quality and fitment.