Thanks. Do you think I would notice enough gains to be worth the risk, and money considering the only mods I have is what I mentioned tubi exhaust and etc?

 

I went with the FVD system because the exhaust changes the cats as well so the gain I noticed in my car was significant.

However .. with the Tubi exhaust the I have always used Evomsit (previous 997S and current Turbo) and have been very pleased .

With NA cars even a significant gain will not be so dramatic like in the Turbo but you will notice a livelier jump in the midrange and and a nice tweak . As for the "25 Hp" that yoir local shop quoted .. it's possible .. but keep in mind that even dyno testing is somewhat of a laboratory figure .

 

Hello all,

Just to post some quick facts since the internet has much mis information.

First there is no date stamp on the flash performed in a Porsche DME, there is the date of the flash that is in it as made by Porsche. Porsche increments flashes by a number in which can be incremented or not.

Second the PIWIS can only tell if a map is correct by a CVN and it actually reads a number in which is checked as far as what was given for the factory Porsche flash. This is basically a checksum of the flash and changes when a tuned file is installed yet would always revert as it should when a factory flash is installed. A human eye can tell if one was removed and taken apart and this is especially true in the DFI cars.


Best Regards,
Scott Slauson
PCA Technical

 

Scott's the expert. One of the reasons I went with Softronic was it's plug-and-play, no removing the ECU and shipping it somewhere. Shippers are very good, but imagine being that rare package that gets lost. Return to stock with Softronic and it's exactly the "original map" - no footprints.

Keep in mind guys that for decades if not generations people have been tuning using chips, software, etc. and in 20+ years of following Porsche tuning I've never heard or read about a single instance where chip / software tuning has caused even the slightest problem.

In the old days you physically had a chip - talk about an easy swap if heading to the dealer. Now it's almost as easy with the Softronic OBD cable.

 

I have GIAC with hand controller. Tubi exhaust. Nice, aggressive, certainly feels more powerful with a quicker throttle response. Definitely a fan.

As for the kneejerk response from every naysayer about the OP topic, I have not dyno'd it and don't plan to. I cannot imagine that tuners could keep selling these if they were completely and quantifiably worthless.

I like my delusional world, it's fast and loud.

 

I agree. For the approximately $1K+ you can pay for a tune, there are other modifications that will bring a higher return for your money. I would not even consider an ECU tune unless I had added significant mods (turbo or supercharger), a complete upgraded exhaust with some head work, and/or was going to build a track only setup. These cars are too expensive to fix out of pocket if the dealer suddenly decides not to honor the warranty on a defective part.

 

It would be impossible to tell from a seat of the pants perspective the difference between a significant performance boost and a simple throttle remap ala "sport mode". As for the good old dyno.........insanity lies in that direction when you are looking for a handful of horsepower. Byer beware w this stuff

 

I have about 150 miles on my Evos flash(2007 S) feels no differernt to me,however,my fantastic indy mechanic said to be patient......

 

See...that is not true...you change the air fuel ratio and timing you should feel a difference if there is a difference. If you dyno'd the car and then flashed the ECU to a totally new map and re-dyno'd the car 5 minutes later you should be able to see a difference.

Some of the things a ECU flash does you may never feel on the street. I had to go to the track to be able to tell some difference in a flash I had on a car.

 

i am not sure what was the deal with your flash - i did feel heck of a difference with my flash and have dyno charts prior and post mods that do show heck of a difference as well.

 

Absolutly, I would never ship off my ECU or have someone take it apart.
Confused or maybe not reading your post correctly....If I have a Softronic ecu flash and revert it back to the stock ecu flash when I go to the dealer....are you saying that Porsche can or can not tell I have tampered with the ECU?

thanks for any help understanding this! Mike

 

+1000. For a very marginal difference - no way Jose. Unless you have a TT - why? If you have money to burn - get your car lighter, better wheels, etc. Or be as good a driver with what you got. On a 997.2S, a small HP/TQ increase will be v. little difference. A good driver with a stock car will still kick your ****

 

I agree and will not consider shipping my ecu to someone, I was planning on driving it to a local tuner and having him flash it while I wait. He also said he would reflash it for free if I needed to take it to a dealer for diagnosing.

I am really interested to hear your impression of the softronics. There are 2 reasons I have not wanted to do softronics
1. I am not good with doing things myself regarding computers, especially when people say its "simple".
2. I heard that it was not as aggresive as EVOMS, even by a tuner that does mainly softronics and other types.

So what do you think in terms of gains that you actually feel?

 

Thanks,
Thats what I am looking for, someone with the same car and mods giving me some feedback and impression. I would not dyno my car either mainly I want to know if I will really feel some gains regardless of the numbers. I am only bringing up the numbers in order to decide which brand to go with. So why did you chose GIAC? and what is this hand controller your talking about?

 

ZZZZ,

I was intrigued more by exhaust, intake, short shifter when I spoke with my service manager attending their sponsored local Porsche D.E. He suggested <his words> "...if you want real horsepower, get a tune.....We happen to be selling these at the dealership....." He went on to say (which I've discussed here before and forgot to bring my firesuit, but in summary: 'The Porsche engine management system will automatically detune any mods you put on that increase horsepower.....Therefore, either buy Porsche engine management upgrade (X51 [yes I know there is more to than a tune]) or aftermarket management system ' I found this odd and have not heard it before but he's served me well in the past and I've never had the impression he was lying to me to get my business.

The controller I mentioned is a handheld unit with several selectable buttons for "Valet" "91 Octane" "Factory" "Race". It has a pigtail the plugs into the OBD reader and can be easily returned "invisibly" to factory. The only functional buttons on the 911S are Valet, 91, and Factory as "Race" (I'm told) is for the 911 Turbo.

So, the reason I chose GIAC is much more laziness and convenience. My Porsche dealer was selling & installing them.

FWIW: I have thrown my first code after some aggressive driving on the hottest day of the year. They narrowed it down to my Fabspeed intake. Despite me calling foul, they (Porsche & GIAC) said the GIAC is guaranteed NOT to throw codes with either the factory airbox or the GIAC/ Champion airbox (it's around $3000 compared to the Fabspeed ~$600). Havn't thrown any more and Porsche seemed to think it was not a big deal, of course after they charged me 2 hours service.