The FrankenTurbo F660 upgrade allows for more aggressive ignition timing, providing a safer and more reliable power increase for tuned 4-series applications.
The FrankenTurbo F825 is an extreme-tier hybrid upgrade that delivers "big turbo" power levels up to 680+ whp while maintaining a 100% bolt-on, twin-scroll design compatible with the factory electronic wastegate.
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The F650 "Super-Hybrid" provides F3X owners with a bolt-on path to 600+ horsepower while maintaining the twin-scroll responsiveness the N55 is known for.
