This is annoying, now I've got it stuck in my head that this I'd causing my truck to run slowly lol
LLY mods for LBZ airbox?
- Thread starter colinstephens93
- Start date
If you read the past posts, you'll see where other people have also cut it out. But I dont think any of them suffer from lack of air or a stuffed up filter
I'm sure it will help. From what I was reading, they open it up from the fender because it helps supply the cold air as opposed to the hot air
Hey check out my posts C20WTF is that sheet metal......? The second one is where I removed/cut the inner fenderwell on my previous picture. You also need the mounting plate to hold the CAI in place..
I made a thread over at diesel place and you commented, I just have a slightly different username
The idea is to draw cool from the fender and front, and not allow hot air from under the hood. Helps to keep the intake air temps down. After I did the mod that C20 has shown, my filter minder remains in the default position. As Ferm mentioned you might open up the front behind the headlight, can't hurt anything.
I am not happy about what I see in your pictures... What have you done to your air filter box?
I am not happy about what I see in your pictures... What have you done to your air filter box?
Did my box tonight. Got a little crazy this is an 05 lly. Cut the front mount off to lol still has 2 more.
I dont exactly know what Ferm means from behind the headlight w/o some pics.
My airbox is an LMM airbox with the MAF sensor port fashioned to fit an LLY/LBZ MAF. Today I did the PPE mod in addition to opening up the fender well like C20 said.
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With the PPE mod, there is no need to open up your fender opening. I personally do not like cutting the airbox like yours as I don't want it to be sucking in hot underhood air, I prefer it to only be able to pull in cool fresh air.
Yeah well honestly, you can just pull the blade like thing out and put it back in, the only part I cut was about 3-4 inches of it where it sits behind the headlight
I guess if all else fails, I could always buy an S&B LBZ intake, but thats about 260 bucks. I only spent 80 on the airbox in addition to an hour or so cutting and scratching my head as to why my filter minder keeps showing red.
It all comes down to me worrying about my truck not running optimally which is synonymous with "slow" in my head.
Yeah I get what ur saying. I wouldn't imagine it would get an insane amount of heat doing that, there's still air coming through all around the light assembly, but it is closer to the stack. A real world hp comparison of the two mods might not even show up on a dyno. And the box is easier to cut up and replace if I f it up lol.
Ferm, where did you drill the holes at? I uploaded two pics, but i dont see where drilling holes behind the headlight would help
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GMC's must be different. Yours is open behind the headlight whereas the GMC's are closed. That must be why the TSB to do the airbox upgrade is different for a GMC than a CHEVY.