ipse dixit

Not going to try and outsmart Porsche, who's been in the business of "tuning" their cars for longer than I've been alive.

So, no, I don't tune any of my Porsches, or cars for that matter.

Manifold

This. No tuner has the resources and expertise of Porsche. If you want a faster car, buy a faster car.

tutis

amen to that.
If you want your car to work regardless of temperature, mileage etc leave it as the manufacturer intended. No offense, but some tuner guy who doesn’t know squat about tolerances and how the engine was designed, and for what stress, whether a different fuel mixture will overtime soot the engine or mufflers, etc, and who probably isn’t working at Porsche/Mercedes etc because they were not first tier (ie not the best) won’t know squat about reliability and emissions.

If APR was so sure it was fine they’d get some insurer to underwrite comprehensive engine insurance to be sold cheaply with their tune. But they didn’t, QED.

and I wouldn’t even consider buying a used Porsche if there was any hint that it may have been tuned. If you want a faster 911, get a Turbo S.

c1pher

They do offer insurance of sorts by purchasing the APR+ tune. The cost of the tune is $1500 and the cost of the tune with insurance is $3k. Not sure how they actuarially arrived at that number, but if my experience with most insurance is accurate, the number is purely arbitrary and market driven.

But you’re right, if it’s 100% safe, all stage 1 tunes would include insurance. Plus what is the interaction with the dealer if you blow your motor or transmission? Does claim work have to be done at an independent shop?

I know some VW and Audi dealers are also APR dealers and do APR+ tunes on site. However, I am not sure if this helps them flag cars or how they support tuned cars that are no longer actually under warranty. Maybe these questions are too complex to answer here.

Don’t get me wrong, I love APR and have used their tunes on VWs and they worked wonderfully. But those were $30-45k vehicles.

c1pher

One thing I would add is if there were a Targa Turbo or Turbo S, I would have moved up to it but it’s not an option.

Fullyield

The engine used in the 992 base, S, T and GTS is the 9A2 EVO engine and was first developed and used in the 991.2 model. The long block in the 991.2 and 992 is the same. What changed between the 991.2 and 992 were peripheral systems such as: exhaust header redesign, intercooler redesign, turbo redesign, intake valve timing control system, engine mount location, etc. But the basic engine, or long block, did not change for the 992 model. It was developed in 2016-2017 and Porsche specifically designed it for twin turbos which require a stronger structure for the increased heat and pressures of the turbos.

Staffie Guy

The car was engineered for the motor Porsche put into it. I like stock, and I like a factory warranty. Plus I don't want any hassles whenever I sell it.

blackland

I would tune it except I have to pass emissions testing where I live. Too much of a hassle to tune it here, I will tune it when I move to FL in a few years.

Tupper

I tuned my Porsche and that thing was FAAAAAAAAAST after that. I mean, WOW.

But........I also had issues (trans error messages) and I just got fed up with all of the datalogging, etc to try to solve it. I wasn't enjoying it any more.

So in a nutshell, I am not sure that I will tune again. But never say never!

3rdpedal

And in doing that they developed the GTS first.

lemonorlime

Yup, tuned it (M-Engineering St1) a few months after ownership. The power delivery is way more enjoyable. I'm not talking about the increase in HP (which is substantial) but at the curve itself.

Bluehighways

For a car that's as powerful as my C2S is . . . . why? Then to deal with the side effects from pretty much doing what amounts to increasing the maximum boost and then risking a smog check failure, no thank you.

ipse dixit

The APR Plus warranty is a joke.

Yes, they provide a limited powertrain warranty that overlaps the duration of the OEM warranty.

But, and this is a big BUT, the APR warranty is only for the powertrain and any repairs to the powertrain has to be at a APR approved facility (read: not a Porsche dealer). And to top it off, any parts APR uses will not be OEM Porsche parts.

That warranty is about as healthy as an unattended corpse at the morgue.

Manifold

Methinks maybe it wasn’t so wise for APR to start this thread. Arguments to tune are pretty weak, arguments to not tune are compelling.

ipse dixit

As the old saying goes, any press is good press.