Too bad Honda couldn't do it from the factory.
We were a tad disappointed when Honda revealed that the new Civic Si would only have 205 hp. The new Si is the first turbocharged model ever, so we'd hoped that it would be much more powerful than the normally aspirated model that it replaced. Unfortunately Honda has said that it kept the power down on the Si in order to preserve the engine for longer. If you're one of the people who was hoping for a bit more power from the new Si, don't worry. The new turbocharged engine may not be that powerful, but at least it's tunable.
A tuning company called Hondata has already released a flash tune for the new Si that gives an extra 6 psi of boost. With the tune, the Si produces 232 hp and 252 lb-ft of torque. That is 27 hp and 40 lb-ft more than the stock car. There also other calibrations that can add more or less boost, with a 9 psi setting that will reportedly give 272 lb-ft of torque. The company warns that with 9 psi the clutch was starting to slip and recommends replacing it with a stronger clutch to run that much boost. The tune also adds the ability to no-lift-shift and calibrate the car via a smartphone app. The FlashPro computer is currently for sale for $650, or an authorized Honda dealer can install the tune for $350.
The tune is even available in a CARB-exempt version for people who live in California. We really wish that the new Civic Si would have had a bit more power from the factory, but for just $350 we wouldn't mind having this tune installed to see how good the Si can really be.