Forza Ferrari 812 / F12/ 458 Electronic Valve Controller Kit Exhausts Handheld Tuner allows for ease

Handheld Tuner allows for ease of tuning and adjustments - No need to send your ECU in to return it back to stock - simply use the Handheld to flash back and forth between Stock or the Fabspeed XperTune at any point

It is possible to experience some discoloring/blistering in the area of the inner edges

Fits all Porsche 911 C2 Turbo

Easy on Easy off so simple you don't need instructions

Dramatically improve mid/high end power by replacing the catalytic converters with a free-flowing x-pipe while adding aggressive sports car sound and throttle response

Forza Ferrari 812 / F12/ 458 Electronic Valve Controller Kit Exhausts Handheld Tuner allows for easeThe Forza Componenti exhaust valve controller kit is the complete solution that allows the user to take full manual control of the vehicle's vacuum actuated exhaust bypass valves. The controller has a circuit board that controls the negative side of the exhaust valve vacuum solenoids. The user can manually open the exhaust bypass valves to have that classic engine sound at all speeds and engine RPMs. Of course, you can return the operation of the