996 Carrera Performance Software (00-04) & 1999 C4 The Porsche 996 Performance Tuning Software from Softronic works on the 2000-2004 911 and the 1999 C4 : Model Base BHP Base Torque Tuned BHP Tuned Torque 996 3.4 liter 300 258 322 271 996 3.6... MSRP: Was: Now: $895.00 Choose Options
996 Carrera 2 Performance Software 1998-99 The Porsche 996 Carrera2 and 4 Performance Software Tuning from Softronic works on the 1998-99 C2 and C4. Model Base BHP Base Torque Tuned BHP Tuned Torque 996... MSRP: Was: Now: $995.00 Choose Options
