2004 Porsche 996 C4S Tip
Advantages: My car is normal aspirated and there are less products than for turbos , which give additional power other than remapping which is costly and limited. GAN is the only one which I can find for my car , easy and best. GAN+ offers Installation is ' Plug in OBD2 ' ONLY ! Extension cable works. 5 yr warranty 2 yr engine warranty up to 3000 euros Easy app control to get back to normal Can be used for 5 different cars +20HP and +30Nm claimed I installed it and drove more than 120km as instructed. First thing I felt was the less hesitation at uphill drive at a rather lower rev like 1200-1500 rpm . Torque at low rev got fatter I feel. Mine has a PSE with X-PIPE, and the sound at 4000+ rpm is really awesome. GAN GA+ is a very rare item for non turbo naturally aspirated vehicles like Porsche 996 Carrera. Remapping is something costly and not easy to get back to factory setting. GAN GA+ is very easy to install , just plug the device to the OBD2 coupler , and can choose mode from 3 (DYNAMIC,STOCK,ECO ) via smart phones. Extension cable worked nicely for my car. Nothing to worry ! ( video 3 ) Not sure about the actual number of maximum power / torque increase , but the first I noticed is the fatter torque at the lower rev like 1200-1500 rpm.(video 4 ) It got much more flexible driving uphill at this rpm range , hesitation has gone , where this kind of engine is not good at. Mine has the PSE with X-PIPE and sounds very nice at 3000+ rpm ( Video 5,6 ). Due to other traffic , it's not the full acceleration , but I can feel the quicker response of the engine.
Disadvantages: Nothing yet. Hopefully forever.
Comment: 5 year warranty and 2 year engine warranty is very helping. I'd like to see the actual dyno data , even not 996 one but some other examples.