Airbox top off with K&N Filter

[k gee]

I discovered the Tahoe I bought has a K&N filter installed. I removed the top half of the cover to let more air in. Is anyone else doing this on a stock motor/tune?

Will it screw up anything other than some MPG perhaps? Truck feels A LOT better with it off, but I'm not looking to ruin anything, just cheap or free mods. *cough cough*

 

[Rebelution]

I don't know man, I would be kinda scared of the filter getting wet. If you want a free mod pull off the air silencer, the little box that says vortec on it, and clamp a rubber cap over the hole. You'll get a very small, hardly noticeable increase in pickup and it sounds cool when you step on it.

 

[puckhead]

should be alright, When you install an after market one, you usually take the bottom plate out and dont leave the top on. Good chance its different on the OBS though

 

[k gee]

What is OBS?

Sounds like the hockey puck mod we do on our LT1 motors for the B Body Caprice/Impala...as far as that silencer Rebel was speaking of. I will check into that. I'm not worried about it getting wet...how? I live in Los Angeles lol

 

[blackcoffee]

OBS - Old Body Style
NBS - New Body Style

 

[718frankb]

heres what i did and i never had a issue with it

 

[puckhead]

OBS - Old Body Style
NBS - New Body Style

What he said! ^^

No clue what the hockey puck mod is though lol

Yeah I wouldnt worry about water much at all. Mines open to the bottom and its been fine. open to the top should have no problem

 

[Rebelution]

When I wheel my truck my whole engine gets covered in mud so my cover is staying but yall's street queens will probably be alright without it

 

[Chrislovessushi]

took my cover off and removed the air silencer and didnt notice any difference aside from a little more of a vroom sound when I floor it.

 

[Green monster]

I don't know man, I would be kinda scared of the filter getting wet. If you want a free mod pull off the air silencer, the little box that says vortec on it, and clamp a rubber cap over the hole. You'll get a very small, hardly noticeable increase in pickup and it sounds cool when you step on it.

You talking about the box near the trottle body? What size cap do u need? I got the K&N filter just to cheap rite now to buy a CAI. The sound would be cool.

 

[kope]

i wouldn't remove the top of the air box because then the filter will be drawing in hot air from the engine bay instead of pulling the air in thru the fender well.....so the little restriction relieved would most likely be lost from the hotter air.

 

[Chrislovessushi]

You talking about the box near the trottle body? What size cap do u need? I got the K&N filter just to cheap rite now to buy a CAI. The sound would be cool.

2.5" cap...I squeezed on a 2" though.

 

[k gee]

i wouldn't remove the top of the air box because then the filter will be drawing in hot air from the engine bay instead of pulling the air in thru the fender well.....so the little restriction relieved would most likely be lost from the hotter air.

Good point, didn't think about that. How about removing or "swiss cheesing" the bottom to get cooler air through fender well? We do this on the B Body Chevys.

 

[foreverfalcon40]

Keep your air box closed so it gets the most out of the cold air from the fender.

 

[Green monster]

2.5" cap...I squeezed on a 2" though.

I can't find a cap that will fit. Where did U get the cap from? I got bored today and wanted the silencer off.

 

[Miami-Yukon]

heres what i did and i never had a issue with it

Did you notice any difference? I wouldn't think so being as everyone is saying that theres no difference taking it completely off, but thougt I would ask?!

Thanks

 

[Green monster]

I don't know if it makes any real difference, I was bored yesterday so i wanted to play around with my Hoe.

 

[718frankb]

Did you notice any difference? I wouldn't think so being as everyone is saying that theres no difference taking it completely off, but thougt I would ask?!

Thanks

with the k&n plus the cut out in the lid made it a little louder and it seemed to pull a little better on the highway wide open throttle

 

[Chrislovessushi]

green monster, got mine at lows in the plumbing section by all the pvc pipe fittings. I got a 2" cap and slit each side for it to open wider, then secured it with a hose clamp.

 

[k gee]

Hockey Puck mod....for B Body cars. Too big for the Tahoe I think.

We put a puck in place of a piece we take out.