Z/28 intake on a new 1le

[cnac2117]

Thoughts of a z/28 intake on my new 1le? Really want a better intake and love the idea of OEM under the hood. I can NOT void my warranty and under the description on the z/28 intake it bluntly says "voids warranty on any non z/28 applications". Could this actually void my warranty? I don't see how unless they could prove the CAI caused it that it could void anything. Hope I am not beating a dead horse with the CAI & warranty question, but any help is appreciated.

[Adrian09]

I installed mine about a month ago and I really liked how it looked. It looks like it came from the factory that way so which I really liked. I installed a K&N on my old V6 and the bottom part of it wasn't really covered and felt like it might suck in water one day.

I didn't notice any performance gains but then again I really didn't test it right before and then after to see gains. The K&N intake on my V6 helped my fuel economy a bit but I haven't noticed a change in that either on my 1LE. Either way I'd install this one simply because of the look

[Camarotobeornottobe]

OP, the warranty thing has been talked about alot. The caution about voiding warranty is typical lawyer stuff. They are looking to ensure that, should someone modify their vehicle in a way that DOES damage it, GM can't be accused of pushing modifications like the Z28 intake, i.e a double standard that threatens their legal standing to deny warranty on modified vehicles.

If we had to tune our cars when they got intakes (like a Mustang, for instance), your warranty would surely be in jeopardy. Not so with Camaros. If you have any concerns, just put the stock intake back on before service. It can be done in 10 minutes time.

[CapeCruisin]

Do it! It'll only void your intake warranty, not your entire car's warranty. Your car won't have issues or blow up, we promise! (Insert legal disclaimer here)

Before and after

Butt dyno approves

[Apex Motorsports]

Originally Posted by Camarotobeornottobe

OP, the warranty thing has been talked about alot. The caution about voiding warranty is typical lawyer stuff. They are looking to ensure that, should someone modify their vehicle in a way that DOES damage it, GM can't be accused of pushing modifications like the Z28 intake, i.e a double standard that threatens their legal standing to deny warranty on modified vehicles.

If we had to tune our cars when they got intakes (like a Mustang, for instance), your warranty would surely be in jeopardy. Not so with Camaros. If you have any concerns, just put the stock intake back on before service. It can be done in 10 minutes time.

Not exactly. While the Z28 intake is a GM part and will physically fit the LS3/L99 you have to keep in mind that it was designed for an engine that is 50ci larger and is tuned from the factory for using that specific intake. When you install it on the LS3/L99 it causes the fuel trims to lean out by as much as -12%. The ECM on our cars do have the ability to make some adjustments but like the Vararam and Pipeline intakes before it, it can not compensate for it. In other words, it needs to be tuned and that is why GM states it is for off road use only and doesn't guarantee that it will not effect your warranty like they do with some of the other performance parts. You either tune it or drive around with a dangerous condition for your engine.

[Camarotobeornottobe]

Originally Posted by Apex Motorsports

Not exactly. While the Z28 intake is a GM part and will physically fit the LS3/L99 you have to keep in mind that it was designed for an engine that is 50ci larger and is tuned from the factory for using that specific intake. When you install it on the LS3/L99 it causes the fuel trims to lean out by as much as -12%. The ECM on our cars do have the ability to make some adjustments but like the Vararam and Pipeline intakes before it, it can not compensate for it. In other words, it needs to be tuned and that is why GM states it is for off road use only and doesn't guarantee that it will not effect your warranty like they do with some of the other performance parts. You either tune it or drive around with a dangerous condition for your engine.

Here we go. So, you are claiming the Z28 creates a "dangerous condition" if not tuned, but the other, aftermarket intakes do not?

[Apex Motorsports]

Originally Posted by Camarotobeornottobe

Here we go. So, you are claiming the Z28 creates a "dangerous condition" if not tuned, but the other, aftermarket intakes do not?

Designing an intake is not only about CFM, it still has to play nice with the MAF and stock tune. Otherwise you could just stuff the biggest diameter filter and pipe you could fit in there and call it a day. There are cases of aftermarket intakes for these cars that require a tune and for the same reason. Vararam has a "no tune" and "tune required" intake. The Fastlane Pipeline is another. However, the aftermarket intake manufacturers understand most people don't want to tune just because they installed an intake so they design them to produce decent gains without going so far the ECM can't compensate. Most of the aftermarket systems like CAI or Roto-Fab end up somewhere between -5 to +5% but there are a few that push it a little farther. As I mentioned previously, the Z28 intake on the LS3/L99 has been documented out in the -12% range. The Z28 has a larger engine and its intake was designed for that engine and is tuned specifically for that intake.

This is not about bashing GM parts, I can sell you a Z28 intake if you want one. But people need to know the data.

[Camarotobeornottobe]

Who has documented the -12% on the Z28 intake?

[Apex Motorsports]

Originally Posted by Camarotobeornottobe

Who has documented the -12% on the Z28 intake?

Here is one C5 member. A local shop we work with had a L99 at -8 or -9% a few weeks ago. I'll see if I can get the screen shot and post it for you.

[CreeperRS]

Originally Posted by Apex Motorsports

Here is one C5 member. A local shop we work with had a L99 at -8 or -9% a few weeks ago. I'll see if I can get the screen shot and post it for you.

Are you aware that the member you speak of did not only added the Z28 intake, but also added headers and high flow cats. He also mentioned that it may be due to the exhaust leak he found! I got an LS3, I got the Z28 intake, no such readings during my Dyno testing!

[Camarotobeornottobe]

And here is the thread where the same member admits he also went longtubes and catless at the same time (with no tune) -- thus the real reason for the -12% condition. BTW, another member with only the Z28 intake posted up dynos with fuel trims identical to stock on the same thread.http://www.camaro5.com/forums/showth...=385214&page=3

[Camarotobeornottobe]

Ha, Creeper beat me to it.And Creeper was the one with the good fuel trims.

[CreeperRS]

Originally Posted by Camarotobeornottobe

Ha, Creeper beat me to it.And Creeper was the one with the good fuel trims.

No problem.

[cnac2117]

Appleciate the feedback, next question... Does the 1le come with the clean side catch can where the oil cap would be? Ive seen lots of pics of it, but mine does not have it. I do have a RX can I will be installing myself tho.