2017 cruze oem cold air ordered..

That's f-ed up! I was going to ask you to pay attention of what they're programming. Because if i get it, they for sure are unable to program it in China. No sound difference is a bummer too.

If you are going to get rid of it and sell it i might be interested.

I believe an exhaust might indeed come with an hp-gain. Especially on turbo cars. Because the turbo can well live without back pressure at all, it is even better, while on naturally aspirated engines some back pressure is essential. Curious thing though is when they announced the exhaust they were talking about reprogramming too, which is reasonable. Now that information has gone.
If you install either of them or together a tune ought to be necessary.

The closed loop O2 sensors will keep the A/F ratio the same with or without an air filter. No re-tuning is needed.

17Cruzer said:

The closed loop O2 sensors will keep the A/F ratio the same with or without an air filter. No re-tuning is needed.

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It ran pig rich with it on. At least I think it did. Hard to tell, I'm used to my wrx with the wideband. I'm just going off the fuel mileage. I even gave it a bit to adjust. It would hiccup and pull timing from a stop.

Ragalyisp said:

It ran pig rich with it on. At least I think it did. Hard to tell, I'm used to my wrx with the wideband. I'm just going off the fuel mileage. I even gave it a bit to adjust. It would hiccup and pull timing from a stop.

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I installed the AEM cai on my Cruze and after short ride, the car ran perfectly. Car is fed 93 octane only. Fuel economy is consistently over 40+ mpg highway.

17Cruzer said:

Ragalyisp said:

It ran pig rich with it on. At least I think it did. Hard to tell, I'm used to my wrx with the wideband. I'm just going off the fuel mileage. I even gave it a bit to adjust. It would hiccup and pull timing from a stop.

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I installed the AEM cai on my Cruze and after short ride, the car ran perfectly. Car is fed 93 octane only. Fuel economy is consistently over 40+ mpg highway.

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I doubt this unit pulls more air than the aem. And it's close to the stock design, so I'd think it would work. I don't understand why they offer a tune, but only for year other than mine. This intake isn't technically for the 2017.


I had two dealers call gm, and got two different answers from gm. One said it's only for 2018 up, another said only for gen1. I don't think it would fit a gen1.

I only run 93

I guess in the subaru community you don't touch anything like that without a tune. It makes me nervous. I've melted my share of pistons at 25+psi, but I hear these cars are doing it stock

Ragalyisp said:

I doubt this unit pulls more air than the aem. And it's close to the stock design, so I'd think it would work. I don't understand why they offer a tune, but only for year other than mine. This intake isn't technically for the 2017.


I had two dealers call gm, and got two different answers from gm. One said it's only for 2018 up, another said only for gen1. I don't think it would fit a gen1.

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My current Cruze is my first. I know nothing about the Gen 1 Cruze. Sorry I'm no help.

This is a 2017. I'm just basing off pictures. I really dont know the gen1, just what gm tells me. I think it was intended for the 17, but they say only 2018 + due to piston redesign.

I don't know how far closed loop will allow it to adjust the map on these cars.

Good news is jerry has tunes to work off of for this intake, so I guess I have my answer.

Ragalyisp said:

but they say only 2018 + due to piston redesign.

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Nice info there!
Still doesn't explain why they ordered the dealership not to install it. Maybe because of the poorly design you noticed?

IPhantom said:

Ragalyisp said:

but they say only 2018 + due to piston redesign.

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Nice info there!
Still doesn't explain why they ordered the dealership not to install it. Maybe because of the poorly design you noticed?

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If you look it's on every gm parts site except Chevy itself. And they aren't giving a straight answer

I suspect liability if they are having piston issues

Ragalyisp said:

I guess in the subaru community you don't touch anything like that without a tune. It makes me nervous. I've melted my share of pistons at 25+psi, but I hear these cars are doing it stock

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More than likely Subaru uses quality forged pistons. Ours are likely cast pistons.

17Cruzer said:

Ragalyisp said:

I guess in the subaru community you don't touch anything like that without a tune. It makes me nervous. I've melted my share of pistons at 25+psi, but I hear these cars are doing it stock

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More than likely Subaru uses quality forged pistons. Ours are likely cast pistons.

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No. Subarus break the ring lands. They aren't forged either.

My point was I have no faith in reliability if I modify this car. It will break. Been there done that. I'll leave it alone for now.

Ragalyisp said:

This is a 2017. I'm just basing off pictures. I really dont know the gen1, just what gm tells me. I think it was intended for the 17, but they say only 2018 + due to piston redesign.

I don't know how far closed loop will allow it to adjust the map on these cars.

Good news is jerry has tunes to work off of for this intake, so I guess I have my answer.

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Closed loop O2 sensors operate within a very small window of Stoich or 14.7:1 air/fuel ratio via ECU programming. Tuning, using closed loop O2 sensors basically ignores the CL sensors input relying on reprogramming of the ECU.

If, or when I add a tune, it will be done using a stand alone ECU using a wide band O2 sensor.

Ragalyisp said:

No. Subarus break the ring lands. They aren't forged either.

My point was I have no faith in reliability if I modify this car. It will break. Been there done that. I'll leave it alone for now.

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Burning through the piston crown to the top ring is from lean A/F ratio and too much ignition timing, and other factors.

Chevy says we can use 87 octane.....its BS. The Cruze needs 93!

I'd like to see a poll of all the broken pistons, what percentage ran 87,89,93etc.
I never run anything but 93.

When I had my subaru retuned I gained 23hp just from 92 to 93. Turbos need high octane. Period

Ragalyisp said:

When I had my subaru retuned I gained 23hp just from 92 to 93. Turbos need high octane. Period

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Agreed!

Ragalyisp said:

I'd like to see a poll of all the broken pistons, what percentage ran 87,89,93etc.
I never run anything but 93.

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there is a thread on here talking bout the piston issue with at least one person mentioning on 91 the piston failed.

I have a early build gen 2 that has had a couple reflashes for 02 issues and the latest one doesn't lug the engine as much. before flash come to a hill at 60 km/h and it would drop to 1500 rpm or lower then drop a gear after flash as soon as it loads it drops the gear and revs 2500-3000. this is with 91 and AEM intake threw an auto. wouldn't worry so much about the piston issues if using high octane and not lugging the engine stock or with an intake of any form.

I ordered this part recently online. Got a pretty good deal on it too. Here's a link to the site where I ordered this part https://www.gmpartsgiant.com/parts/gm-cleaner-kit-air-install-1-0-84356430.html . It came with the factory warranty as well.