The S300 phase 3 upgrade kit from S280 phase 2 composes of 2 items;
- Optimized S300 ECU raising bhp & torque.
- Larger and smoother airflow sensor assembly.
S280 ECU & smaller airflow sensor assembly are returned to Komo-Tec through their purchase & swap program. I have had this upgrade kit fitted a month ago.
Remember the first time you drove the car after the S280 phase 2 was fitted? Remember the way the torque pulled hard all the way to redline? That priceless feeling, be prepared to be impressed again.
Happy to report, lower range RPM torque increase has now improved driveability (S280 still needed occasional downshifts once in awhile to get going), while RPM climb to redline is faster, smooth, alot more aggressive.