How can I get the max performance value, without losing factory warrantee

[EarlyApex]

Here is a link to a O2 simulator that splices into the rear O2 wiring harness.

http://www.ebay.com/itm/Universal-Mi...dc027d&vxp=mtr

Two are required for the Camaro but not too expensive at $20 ea.

[aggieguy13]

It leaves a footprint. But idk what kind. My particular dealer said as long as it's factory when they get it. It's ok. Like I said it's per dealer what they'll allow

[Msmall143]

Originally Posted by aggieguy13

Difference is. You can't keep a dyno machine in your glove box and revert your ecu to factory at any time.

You can save you stock tune to a handheld, you can also save a dyno tune on a handheld. It's just a file.

I get yr point though, that why you pay for a dyno and a handheld to store it on. But people have done crazier things

[Msmall143]

Originally Posted by CrystalRedTintcoat

But do the codes reveal that you've tuned it?

The codes aren't what tells them its tuned. A proper tune and you wouldn't ever have codes unless you had a real issue. It's the ecu that would show a record of data change. If you have an issue, the first thing a tech is going to do is plug io the ecu to see what it's reading in regards to any issue. When they do this they'll see you've changed settings away from stock

[mcsoul]

I was reading somewhere that the GM LS9 cam from the ZR1 could add about 20hp to the LS3 with no tune.
Is it not true? Will it fry your motor?

[knitetrain05]

http://www.chevrolet.com/performance/camaro-parts.html

[AGM 1LE]

Originally Posted by Msmall143

The codes aren't what tells them its tuned. A proper tune and you wouldn't ever have codes unless you had a real issue. It's the ecu that would show a record of data change. If you have an issue, the first thing a tech is going to do is plug io the ecu to see what it's reading in regards to any issue. When they do this they'll see you've changed settings away from stock

I bet that it changes a 0 to a 1 in there somewhere and thats how they can tell it has been flashed even if it is back to a stock tune. I imagine that the guy at the dealer is saying that as long as it has a stock tune when he takes it in its fine but GM isnt cool with that

[aggieguy13]

Put in a cam and you can kiss every part of your warranty goodbye

[cornerspeed92]

I put JBA shorties on my 2011 1LTRS/RS and made absolutely no difference what so ever.I was told until you change(tune)settings the computer will still only deliver the stock(fuel/air) settings.So how are these V8 getting extra power,wouldn't it be the same issue?

[Fraxum]

Originally Posted by Msmall143

wyndham...I'd love to hear your opinion on intake and headers with no tune?....

I was under the impression a tune is highly highly reccomended in this case. Wouldnt the headers cause CEL's? but I would love to be educated

It is my understanding there is a flash counter in the ECU that cannot be touched with a tune. If the counter count is not accounted for in the cars GM service records, then officially your power train warranty is bye-bye. But of course some dealers are cool about it, some are not.

I run LTS, high flow cats, and no tune. I also did this on my '11 SS. Yes I get some CELs, no big deal. I read them and turn them off.

A tune on LS3s is good for 5-15 HP depending on who you ask, can remove torque management and skip shift function, give you cooler fan management, let the engine ignore the rear O2 sensor (preventing CELs),and offer a few other tweaks like an increased RPM limit. Although I am told if you do that last one, you should upgrade the valve gear if you red-line often.

As to power my 1LE runs over 114 in the quarter with no tune. So as it sits if I get skinnies, better DRs, and better at launching, 11s are possible without a tune. Although I do not think anyone has done that yet.

But also know that dealers may give you a hard time about LTs tuned or not. You can get 50-75% of the power LTs give you just by getting stock cat hi flow replacements. Solo says no CELs. Not sure if they guarantee it though. You can also get shorties and some Camaro owners love them. But most of the dynos show they are not worth many, if any more HP than stock. There is a weight savings though and they look cool.

If warranty is a big concern I would say stay away from long tubes. Just about everyone who has LTs also has a tune if that tells you anything. I guess I'm a rebel. The biggest problem with LTs is they push the rear O2 sensor too far back in the exhaust system and render them useless.

This topic is covered extensively in the bolt-ons section.

[PhiLE1]

My understanding is GM says you can can do anything you want on the exhaust side & anything you do on the intake side including a tune will void your engine warranty. When a dealer hooks to your computer it goes directly to GM, your dealer doesn't have the ability overlook certain upgrades that throw bad codes to GM

[mcynet]

Originally Posted by PhiLE1

My understanding is GM says you can can do anything you want on the exhaust side & anything you do on the intake side including a tune will void your engine warranty. When a dealer hooks to your computer it goes directly to GM, your dealer doesn't have the ability overlook certain upgrades that throw bad codes to GM

Does That include a cold air intake?

[PhiLE1]

I don't think the codes will show that unless you change the mass flow sensor

[Msmall143]

Originally Posted by PhiLE1

My understanding is GM says you can can do anything you want on the exhaust side & anything you do on the intake side including a tune will void your engine warranty. When a dealer hooks to your computer it goes directly to GM, your dealer doesn't have the ability overlook certain upgrades that throw bad codes to GM

the reading is synced to a system, but very few are reviewed by gm. so they can overlook stuff. but its you thats rolling the dice.