Installing air intake

[CrawDaddy825]

OK guys so I purchased this inexpensive intake off Ebay. I am trying to install it on my 05 LS. The confusing part to me is what do I do with the stock hose that connects to the bottom of the stock intake? It is a black rubber hose that has a plastic clip on the underside of the stock system. It runs back towards the firewall. Does anyone know what I mean?

 

[Mooseman]

If you mean the hose that comes from the valve cover, use the small filter right on the nipple from the valve cover. Is yours an EXT? Then that one has a vacuum line that goes to the front of the intake manifold. It doesn't change.

Only other hose I can think of is for the SAIS (Secondary Air Injection System). If you're retaining that system, you'll have to either add a filter to that hose or just leave it open but protected from water. That hose feeds air to the pump that feeds air into the exhaust during warmup. Since it's going into the exhaust, dust is not as much of a concern but may damage the pump or valve.

BTW, those cheap units are usually referred to as a HAI (Hot Air Intake). It will just suck hot underhood air and that metal tube will also get hot without insulation.

 

[CrawDaddy825]

Thank you for the help!

 

[CrawDaddy825]

So if I don't have an EXT, what do I do with these openings on the metal tube?

 

[Mooseman]

The smaller one is probably for the fuel pressure regulator, which you don't have for 2005. The larger one might be for the PCV at the front of the valve cover, which doesn't make sense since they provide a small filter to put there instead. I'd use the filter to keep the the throttle body clean.

 

[CrawDaddy825]

So would you suggest that I just plug or cover those two openings in the metal pipe?

 

[Blckshdw]

just plug or cover those two openings

 

[I_Shoot_Back]

To make it a bit more effective on the "cold air" intake,you should make a little divider where the filter sits.

https://goo.gl/images/sfrXg8 shows what I mean. It somewhat scoops the air that passes by the right headlight into the filter and keeps the hotter air in engine compartment away a bit. It's not perfect but better then having nothing. The k&n uses the stock bolt holes from the oem filter cover.
And yes,just plug those two holes.
Also,cut off your resonator. In combo with your cold air intake and deleted resonator you will love the sound

 

[CrawDaddy825]

I plugged the smaller hole and attached the hose on the other opening to where the PCV was. The sound is pretty cool, although I'll probably be getting on it more just to hear it 😂😂😂

 

[Capote]

I plugged the smaller hole and attached the hose on the other opening to where the PCV was. The sound is pretty cool, although I'll probably be getting on it more just to hear it 😂😂😂

You should add a catch-can to prevent the blow-by coming from the crankcase back into the intake. It'll keep the throttle body cleaner for far longer.

 

[CrawDaddy825]

You should add a catch-can to prevent the blow-by coming from the crankcase back into the intake. It'll keep the throttle body cleaner for far longer.

I'm not exactly sure what you mean by that?

 

[Capote]

I'm not exactly sure what you mean by that?