Anybody know if it is possible to upgrade a 2012 CTT to a CTTS? Specifically can I get the ECU flashed to gain the extra power? Any other significant part differences between the two?

My CTT is covered by a CPO warrantee that I don't want to void by going to an aftermarket tune.

To clarify I am looking at factory parts and tune or DME swap.

Thanks!

 

forget flashing because it voids the warranty.
in fact forget anything because eaven a cat bypass will void the warranty.

 

Bob,

I was speaking of a factory flash or DME swap, not an aftermarket flash. I've read reports of guys having the sport upgrade done at the dealership and wanted to know if anyone here has done it and what is involved.

 

Strange, i had a couple of items requiring warranty work the past few days at my local Porsche dealer.

I have cat bypass.

Today's cost = $0.00

 

It really depends on your relationship with your service department at the dealer. Technically any mods can void your warranty but in reality only if the mod can be linked to the issue.

ECU tunes is a mixed bag since it changes so many variables. But with that said, my SA is aware of the tune and said the service dept is cool with it. If a warranty issue ever arise that might be related to the tune, he just says to re flash back to stock before coming in.

 

If I'm not mistaken, I think the power difference between the CTT and CTTS is from factory tuning. I don't believe there are actual parts that are involved to make the power difference.

Hoiya, which dealership do you go to? I also have a tune so I'd prefer going to a dealer that may be more mod friendly.

 

The first part is true in so much as the amount of hassle you have to deal with. The second part is absolutely false in the USA due to the Mag-Moss Act which is what makes the third part true (in the US).

Warning: Layman's summary ahead. Consult a real lawyer for sound legal advise.

MM broke the old policies that you had to have your car serviced by a dealer and you could only use OEM parts. It allowed the customer to take the car anywhere for work and that they can use aftermarket parts so long as they meet the MFG standards without voiding their warranty.

It also puts the onus on the dealer/MFG to prove that any modification was at fault for the failure being repaired. If they can't prove that the modification is the cause of the failure then the warranty is still valid.

Furthermore there was the practice of voiding the entire warranty for a problem and the Act forced them to honor the warranty for unrelated things. So if you upgrade you stereo, they can't reject a transmission claim because of that (unless you did something really crazy).

The reality is that few people know their rights and the dealers pray on this both in encouraging the belief that they must do all the service and in trying to get out of warranty claims.

If you are going to mod your car, you should know your legal rights. You should also understand how your changes will interact with the car so you know what is worth fighting over.

There was a case here a while ago were someone installed a piggyback on a diesel and their dealer blamed that for seat memory problems he was having. That is a case worth shoving back down their throat.

In the case of this thread, obviously the DME itself would no longer be covered (modified outside of OEM specs) but if you had any engine or transmission problems you'd have a mountain to climb to prove it wasn't your change's fault. I said prove, but earlier I said the Act put the onus on them. Its true that they have to prove it, but that really only matters if it goes all the way to court and a drawn out court case will cost more than a new motor when its said and done. If they know they can't prove it, they'll most likely eventually settle but it will be a painful and drawn out experience in the meantime.

Sorry for the soap box. Its a pet peeve that most people are ignorant of Mag-Moss when talking about mods and that dealers abuse that ignorance.

 

My dealer did my flash & bypass pipes on my 2011 CTT before it was delivered to me new. Really dealer dependent. Of course if I had a major problem where PCNA got involved it could be a problem. My 2015 CTT on the water to replace it will also be done before I take delivery.

 

I've been going to Rector, but Sonnen and Carlsen are are both mod friendly. I told my SA that I have a GIAC tune on my CTTS and he said no problem.

 

Thanks gnat for the Mag-Moss summary. I was being lazy and didn't do an accurate job in distilling the details.

 

The real problem is not your dealer but Porsche AG.

Each broken part is sent back to Germany for detailed inspection.

If they detect anything not from Porsche your warranty is dead.

Sure not a big problem for small and specific parts, but imagine its is your engine that comes down (a few V8s had piston problems).

And their new ECU records a lot of things (remember that it is encrypted... integrity checks are not very hard to do)

For the moment Porsche AG is calm with yours dealers because they are just settling in the US.
Here in Europe, dealers won't even speak of moding your car.
They could loose their Porsche franchise which is renewed each year.
And if you want to sell your franchise, Porsche can say no if they don't like the buyer.