This is a the fourth compilation to the first online EFI Tuning School. Tuning your own ecu of aftermarket engine management system gives you the satisfaction of doing it yourself and saying I made that 500HP. FASTuuN Module 4 Airflow Management. Get your classroom session and questions answered. Dyno Session 1 - Centrifugal Supercharger. Dyno Session 2 - Roots Style Supercharger. Dyno Session 3 - Wastegate Duty Cycle Calibrating. Dyno Session 4 - Boost Control. Dyno Session 5 - Calibrating VVT. Dyno Session 6 - Adjusting Cam Gears. Dyno Session 7 - Nitrous. The best part of this whole EFI tuning course is you get Lifetime Access to refresh your memory anytime... PRICELESS!! If you are ready to take your tuning skills to the next level go to fastuunefisimplified.com