Just something that is between the engine and the filter to block heat. Don't have one on mine and it werks good!

I run the AFE Stage II w/ Pro Gaurd 7 dry filter. Nice kit, provides lot's of air. Filter gets dirty real quick. After being educated in the 6637 and seeing it on other rigs, sure wish I would have saved the $450.00.:sigh:

well, I just ordered the 6637 so that will be going as soon as i get home. I also ordered a gauge piller too. I cant believe how expensive the gauges are though. I think im only going to go with boost and EGT gauge though, considering i shouldnt have much need to tranny temp since i run a manual tranny right?

My biggest gripe with the factory airboxes on these trucks is the two piece design of it. That was my primary reason to go to a 6637. Looked at a 7.3l to buy one time that had a cracked upper filter housing, not good. Terrible blow by but the guy was convinced it needed only injectors.

You should be fine without a tranny temp with a manual. There isn't too much of a concern of heat buildup as you don't have clutch packs and other things making friction to heat up as there is in an auto. At first its fun to make the gauges work but after you get over that the boost gauge serves as a nice "econo-meter"(making it move as little as possible).

Good deal, the gauges are important one you get a chip because the EGT's will start to get hotter and that's what can kill your truck! Where did you get your stuff from?

I got the gauge pod from riffraff when i ordered my 6637. It was just the empty gauge pod though im going to have to wait till next payday to order the gauges. I want to go with the carbon fiber gauges and they arent exactly the cheapest ones out there

Cool, Clay at Riffraff is a good guy. You'll be very pleased!