thanks moparman, did and it worked out great and looks good under the hood. the bhaf sure has the truck running a lot cooler on the pyrometer, also put a 4 inch exhaust on but it seems that putting the filter in made the biggest difference on heat. also running my comp on 4x4 towing my 27 foot trailer and it pulls great, luv it.So thanks, agian and this is a great site.thanks, super007