Fabspeed Ferrari 812 Superfast/GTS XperTune Performance Software 958.2 Hybrid (2015-2018) Replaces the restrictive factory cats

Replaces the restrictive factory cats with high-performance HJS Racing sport cats for maximum performance and sound

These improvements deliver an additional 40+ wheel HP

5mm tubing for less restrictions and turbo lag

Increase +4 ft-lbs of torque

Fits all Porsche 981 Cayman GT4 / Boxster Spyder models (2015-2016)

Fabspeed Ferrari 812 Superfast/GTS XperTune Performance Software 958.2 Hybrid (2015-2018) Replaces the restrictive factory catsAchieve maximum power without sacrificing drivability or reliability by optimizing the engine's air fuel ratios, timing, and more. The 812 Superfast is an impressive car from the factory, there's no doubt about it. We set out to extract maximum possible gains out of the 812 while keeping the operating parameters safely within the confines of reliability and longevity. Once we receive your ECU, our tuner bench flashes it with the upgraded ECU map and