Hi guys, first post here. I just picked up an '07 hold over for a great price and have been reading as much as I can. I am considering having the GMPP Stage 2 kit done at my dealership. My question is, since it does not include a CAI, can I run a CAI with the stage 2 reflash and be okay? No CEL or anything like that?

Also, I haven't been able to find a price regarding what the parts are sold for and what a reasonable price for installation is.

I searched high and low but didn't find these specific answers.

Thanks guys.

 

Hey Gizmo. You can run a CAI with S2 no problem.

I ran S2 with plugs, JBP 3" CAI and GMPP exhaust and put out 256whp 220tq on the dyno.

It makes a big difference!

S2 = $550 apprx
Install = differs on your city and stuff. Most guys in the U.S are getting it done for less than $200 I believe.

 

Alright, thanks.

So if I understand this correctly, running a CAI on an otherwise bonestock car will probably give me a CEL, right? But with the Stage 2 which includes the 3" pulley, belt, injectors, and flash, I can run a CAI and exhaust as well with no problems?

What about a shorty antenna, will that put me over the edge to where I'm running too lean?

 

You can run a CAI on a bonestock car with no problems

 

actually quite to the contrary.. it'll make you run rather rich.

 

Why would it be more rich? Your getting more air in so it would run more lean if anything?

 

I think he was commenting on my sarcastic shorty antenna remark.



I thought I read where a lot of people were having CEL's with CAI's on the stock tune.

 

Ahh i see...no you shouldn't get any CEL's I ran a CAI for about 4 months as my only mod and had no problems

 

I'm liking what I see with the AEM as it doesn't mess with the MAF at all. Does it produce as much HP as the others like the K&N, Injen, etc.?

My gut instinct tells me to go with the K&N but I went through a big mess with my 2003 Cobra not liking my CAI and it was messing with my MAF, causing erradic idle and CEL's and crap like that. I don't want to go through that again as this car is my DD.

 

Commanded AFR is why. More air into the engine = PCM tells the injectors to throw more fuel at it to keep the AFR the same. That's why you can't run a 2.5" pulley on Stage 2 injectors (well, you can, but you'll be making friends with a shiny new #4 piston real soon).

OP, a CAI is fine stock, there are a few threads around about which brands people have had the most success with. Some cause CEL's more than others. I run the stock intake though, the airbox mod and a drop-in filter is just as effective as a CAI (the airbox and filter are outside the engine bay in the bumper, so it's technically a CAI already) and won't set you back $230 for what amounts to a shiny new intake pipe.

 

I have one of the last of the 07's as well and I had the stage 2 installed and then a Ingen Cold Air intake and I do have a check Engine light saying im runing too rich.

 

better than running to lean!

 

thats the same thing that happened to my 07 ss/sc irratic idle and cel's and major bogging..i called k&n and they told me theres a reason y they dont make the cai for the 07 so i bought an xtc 3 inch and works amazing no cels or anything, hope this helps

 

It's hit and miss with any car. Intakes can cause a CEL, and sometimes it won't. I throw a lean code with my AEM intake in cold weather with stage 2, so it's basically up to the car. Each one is different. The RAW intake is guarenteed to now throw any codes, though...i'm getting one soon.

 

Where can I find some info on this RAW intake?

 

check the rebal auto worxs group buy page

 

I got to thinking about this CAI and really all I'm wanting is some more volume from the supercharger. I'm going to be doing the Stage 2 later this spring but leaving the exhaust stock as I'm not trying to squeeze every last horsepower I can.

Maybe the airbox mod would be best for me. Or is there another simple way just to get some volume and sound from the SC?

 

Airbox mod + drop-in filter FTW. You're just looking to remove a restriction, which both the CAI and the airbox mod do (both take the airbox out of the equation), and both make the S/C louder. If you're worried about water, get a hydroshield. For looks, nothing beats a polished CAI, but if you can get the same performance for $50 instead of $250... That'd be my preference

 

That's kind of what I'm thinking. I may go that route.

 

I just took my car ot the dealership today, was having some issues with the car shutting down in the rain..

I have Stage 2 kit, and GMPP exhaust and extrude honed exhaust manifold

they told me to remove the AEM CAI for 2 reasons

1. car shutting down in the rain because of sucking water mist up into it.
2. computer codes logged show lean conditions.

he said I should feel some a difference by putting the stock box back on.

so I will do that when I get home and sell the AEM CAI on ebay or something. He said the CAI works great and does give performance on the non supercharged cobalts.

David ( after thinking about it, it does make a little sense)