ECU Tuning on a 986

[j.fro]

I've got the software that you've referenced, the reflash from Softronic. It's a good product, but it works best if you have completed other modifications such as exhaust and intake work. A significant piece of it's success comes from advancing the timing.
On my car, I've got the larger throttle body, a cone air filter mounted outside of the engine compartment, headers, 100 cell cats, a Borla muffler, lightweight flywheel, and underdrive pulley. On the dyno, the car showed 244 RWHP, which is about 290 at the flywheel. Gains are across the board. Fuel economy improved as well.