I have a 99 K1500 Suburban 5.7 and am in the market for a cold air intake system. Would like to know what members recomend brand-wise, and performance. I know K&N is very popular, but I heard that the oil on the filter can cause problems with the MAF sensor. I also know there are many other brands out there but I do not have any experience with any of them. Any help would be great!