991.2 Turbo/GT2RS Performance Software (2017+) Drivetrain CAD designed and incrementally Dynojet

CAD designed and incrementally Dynojet developed and tested for maximum performance gains

Benefits of a Porsche 997 Rear Spoiler

Major significant DYNO proven power increase over the stock airbox coverlid DUE to dramatically increased airflow to the mighty air-cooled flat six engine

Provides a more aggressive exhaust note and sound

991.2 Turbo/GT2RS Performance Software (2017+) Drivetrain CAD designed and incrementally DynojetThe Porsche 991 Turbo Performance Tuning Software from Softronic works on the 991 Turbo, TurboS and GT2RS DFI from 2017+: 2017+ 991. 2 Turbor DFI engine 2017+ 991. 2 TurboS DFI engine 2017+ 991. 2 GT2RS DFI engine Model Base BHP Base Torque Tuned BHP Tuned Torque Turbo DFI 540 487 660 647 TurboS DFI S 580 516 700 660 GT2RS DFI 690 553 800 705 Options: Removal of Pops and gurgles Autostart disable Free revving in Neutral Sport only Boost Max speed