You can drill the exhaust tubing and using TIGHT! grommets install both the IAT sensor and the filter sensor thingymabob into the pipe. 6637's way better than a K&N for dusty areas (such as South Dakota) and if you want cooler air, just build off the stock bottom of the air bock with either flashing of thin aluminum plate to seal to the hood, not that ANY and i mean ANY of the big name kits get within an inch of sealing to the hood completely.

 

Has anyone ever has there check engine light come on after putting in there 6637..i took the aircharge temp sensor off and the light came on..put the sensor back on and lights on still..help..

 

use a scan tool to reset continuous codes or unhook battery grounds for 20 minutes. then retest

 

My truck had a K&N filter on it when I got it and a dusted turbo wheel as well. The K&N is a pos for anything with a turbo or blower. BTW I bought the truck from my brother and know the history on it...K&N went on at 55k miles and I got the truck at 76k miles. The turbo wheel looked great with the factory air box until the cheap *** intake off ebay went on it hence the reason why I run the big Donaldson filter now. 20k miles with a K&N is all it takes to round the edges on a turbo wheel.