Hi,

I'm thinking of having my ECU flashed. What kind of results have you all had?

Thanks!

 

I would think not much on a non turbo model

 

Ditto. Porsche doesn't leave much on the table anymore.

 

Programming for - The 2010 - 2007 Cayenne® DFI S/GTS®
GIAC performance software for the 2010 - 2007 Cayenne® DFI S/GTS® smoothly delivers a 15-32 hp and 38-48 ft lbs gain. For optimum performance the software must be coupled with an exhaust. The flash includes improved drivability, with power and torque gains across the entire rev range. Some areas gain as much are 40 ft lbs of torque at the wheels. There is improved throttle response for a drive-by-cable system feel. The flash incorporates increased torque limits to accommodate additional hardware modifications. Stock mode and a handheld switcher are included with purchase. Additional switching modes (Anti-theft, Valet) may be available for purchase in the coming months.

 

Yeh right

 

"For optimum performance the software must be coupled with an exhaust. "

I think that says it all.

 

So which is it, 15 or 32? 38 or 48? If they have actually dyno'd the results, they ought to be able to tell you exactly what the gain is, and at what rpm.

I chipped one of my cars several years ago, and the claimed 15hp gain was barely noticeable on a car that started with only 150hp. The hp and torque numbers actually DROPPED at more sedate engine speeds where you spend most of your driving time.

Buyer beware...

 

It looks like GIAC did run a dyno.

 

You won't see spectacular power gains in a normally aspirated application. Who knows. Your "butt dyno" might think/feel differently. The force induction applications is where power is made with tuning, not to say yours won't make any.

 

I'm curious to whether that was done with an S or a GTS. I would imagine the GTS would see fewer gains than an S.

 

Do you think the example dyno they provided is WITH an upgraded exhaust?

 

https://rennlist.com/forums/porsche-...e-package.html

Most of the ECU tunes on the market claim about the same hp and tq figures.

 

I found it on their website and they did have a different dyno for S vs GTS.

http://www.giacusa.com/programs.php?mpid=610

... it's under the "Dynos for the 2010 - 2007 Cayenne® DFI S/GTS® with"

BTW - i have no affiliation what so ever with GIAC, just a regular guy, who may also be interested in this if it really bumps the HP/Torque this much. What we need is to hear from someone who has the GIAC tune on a GTS.

 

Could very well. I suppose we'd have to email and ask. I definitely don't want to mislead anyone, especially as I would be interested in this as well.

 

I have this overwhelming hunch that most of the power is coming from 2ndary cat delete.