M Engineering

Hello RL,

We recently were able to get some video and real world examples of our PSE Valve Mod in-action. This mod is available for any PSE equipped 992 Carrera, Turbo, or 982 4.0L.

For those not familiar, the factory PSE (Porsche Sport Exhaust), when activated via the exhaust valve button on the dash, or by putting your car into "Sport" or "Sport+", still only opens up your exhaust valves only part of the way, and the amount it is opened depends on a number of factors such as RPM and load. With M-Tuner, and the PSE valve mod activated, we are able to force the valves open 100% of the way. This gives you a louder exhaust and more power, without having to do any hardparts modifications. There is no additional charge for the PSE valve mod with the purchase of M-Tuner. This is our most popular modification available!

M-Engineering's Porsche M-Tuner for 992 Turbo / Turbo S

M-Engineering's Porsche M-Tuner for 992 Carrera Base / T / S / GTS

M-Engineering's Porsche M-Tuner for 718 4.0L




Youtube Short: https://youtube.com/shorts/kKwT6xxbYs0?feature=share






-Charles@M

shrimp money

I don't understand why this was never done as a standalone option. You could have tempted so many more people to get the full tune later on down the road for only $2k more.

M Engineering

To get this mod added to the car requires a full ECU flash to be completed. This means using our software and custom code we worked hard to develop. We actually sell quite a bit of M-Tuners for this mod only utilizing a "Stage 0" map where no power is added. Adding the flash to your car only takes about 5 minutes and is fully reversible.

There are some other cheaper stand-alone controller options out there that can be hard-wired into the car instead if you don't want to flash your ECU.

-Charles@M

Malakas

Ok... So with the PSE "on" it's now wide open... But how does it behave with it in "off"?

Master Deep

Factory button off programming.

Malakas

So that means under higher throttle loads it still opens just like stock "off". Just curious why Porsche stock "on" doesn't open the valves all the way, when there's clearly a power loss that way. I guess for civility.

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AlterZgo

That's pretty much it, IMO. Some people on here complain that their car drones w/ valves open 100%. Personally, I have never noticed the drone and think the exhaust is still too tame and quiet w/ valves open 100%. But there are clearly Porsche customers who want their cars to be quiet even in sport and sport+ mode.

I would never get a tune for features only but I would bet those who do choose other options in addition to exhaust valve open 100%. You can increase the stationary rev limiter, which is a must for manual cars if one wants to be able to launch it at higher than 3500 rpms, and you can also remove cold start which makes the car much quieter on start up. You can also log your car and clear codes, etc.

highedu

When we order the tune, are we able to leave the cold start feature on? Meaning, is there an option if we do not want to the car quiet on cold start?

svkarl

Yes, they provided me several files in the almost two years I’ve had the tune; I’ve got one with cold start on, one with it off, and combinations with and without auto stop/start, and with the valves fully open. They have been probably the best aftermarket product support company I’ve ever worked with plus their tune is killer!

itrocks4u

OP - Can you help me understand warranty concerns with Stage 0 tune that only adjusts auto start stop and PSE values?

In case of an issue, how does Porsche assess an ECU flash with no additional power versus one where a flash results in additional power?

Also, when you provide a flash, do you also provide a stock flash meaning, I can just revert back to stock fairly quickly?

Finally, if I have a flashed ECU, and subsequently revert it to stock before taking it in for service, is that something that is logged in vehicle history i.e. ECU versions etc. Can the dealership still identify that the vehicle had aftermarket flash that was reverted back to stock?

Chalk992911S

Pretty sure that’s opening a can of worms question.
After reading for hours on their tune….On the short (someone can correct me if I’m wrong), M Eng. states Porsche dealers can’t see the tune when it’s removed. Counter arguments claim otherwise. Supposedly there haven’t been any issues with M Eng customers having any issues when the tune is removed before bringing the car into Porsche.

911Stiller

@M Engineering Hello Charles. I am interested in this option with the tune. I sent you a message. Thanks!

M Engineering

Thanks for the feedback and comments everyone! Responses below.

"Off" is stock behavior.

Sure thing, you can configure it however you wish.

Thank you for the kind words!!!

Back to stock / Uninstall files are provided. When you go back to stock, the car is byte for byte flashed back to stock. The flash counter doesn't go up, and you'll have a verified CALID and CVN. I have yet to see a detected issue when going back to stock. At the end of the day, you are modifying your vehicle. Some dealers are mod friendly, some are not.

We have spent countless hours making it undetectable and the process as easy as possible. That being said, at the end of the day, you are modifying your vehicle. Some dealers are mod friendly and some are not.

-Charles@M

Tupper

Valves are stupid.

Mic dropped

Chalk992911S

10-4! I’m on the “pro” tuning side :-)
I’d be running the M.E tune in my 992 911C2S right now if I could stay on track pushed hard for multiple 30/40 min sessions.