buoniconti81

Hi Actually this a question on buying a 2009 camaro ss ,and I heard if you tune the ecu, the warranty is voided... Is this true? I heard they can see if programed it before even if it was returned to stock settings before bringing it back in for whatever reason to the dealership? Is the new vett like this too? I heard there also was a tamper seal is it on the obd2 port or the ecu? I just swap ecu if I had to.

buoniconti81

Program Ill be using is hptuners as well....

foremaw

If the issue is powertrain related its possible the dealer will void the warranty if he discovers an aftermarket tune. Dealer policies vary.

Returning it to a stock tune does not eliminate the recorded history of what has been done as I understand it.

I can't answer the tamper seal question but I have not heard of one.

dads toy

Can't answer the warrenty question but if you want to research different tuning software options go to ls1tech.com. they have tons of info on the various tunning software out there. Lots of choices.

Mike's LS3

Go over to corvettemechanic.com/forum/ and click on C6 technical info. There is a post on "GM's crackdown on aftermarket calibrations". Apparently a good tech can tell if the ECM was reflashed or replaced. There are inconsistencies that a trained tech can pick up. The additional 10 -15 hp gain is not worth voiding the powertrain warranty. Those who install headers, intake, cam, etc. will need a tune to gain maximum performance.

buoniconti81

I was going to do american racing headers and a good tune.. I didnt run into this problem, on my c5 oh well...... Thanks guys Ill check out ls1tech.....

buoniconti81

I heard a gm tech 2 person can pick up the ecm was flashed at some point... I wasnt sure if they could tell if you switched them out.....