If you guys are so concerned about warranty's why not consider the BSR tuning system developed in Sweden since 1996. Their PPC tuning system comprises a PPC unit, which once loaded with the correct map for your vehicle, can be loaded and then unloaded within minutes. When you purchase the PPC unit BSR will load the relevant map onto it for you. Once you connect it to your ODB/diagnostic port it copies the original map to the unit and then replaces your vehicles ecu map with the modified one. You can at any stage plug the unit in again and reload the stock map onto the vehicles ecu. The whole process takes only around 10mins, and is truly undetectable. The other added advantage is that you can log on to BSR website at any time and download the latest map for your vehicle and re-flash it yourself within minutes.
The PPC system for the Mk V GTI gives you 248hp / 390nm. For more info visit
www.bsruk.co.uk, I believe Engstrom Racing or something like that is a certified US distributor for their products.
Details for the VAG 2.0T are as follows :
There has been a great demand for tuning for VAG’s new turbo engine 2.0T FSI/GTI (200Hp/280Nm). We now offer tuning for Golf GTI and Passat 2.0T FSI as well. The programming, which is a non-mechanical operation via the diagnostic outlet, is performed by BSR.
The new tuning software is optimized in many ways:
- Maximum power 248Hp@5000rpm and 390Nm@4000rpm
- Maximum boost pressure approx 1.1bar
- Improved runnability under all circumstances
- Reduced power when engine is cold (approx 200Hp)
- Eliminated boost pressure reduction when braking (enables to step on the gas and brake at the same time without power reduction, for example when driving on a track)
- Torque limit on the gears for best performance and reduced wheel spin
Some of the nicer features include the elimination of boost reduction under braking as well as the reduced power for when the engine is still cold. The torque limits on individual gears is also a nice feature to avoid too much wheelspin when trying to pull away quickly.