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The Fabspeed Supercup Race Cat-Back Exhaust System is perfect for the racetrack or enthusiastic street driving
In addition to regular inspections
Improves power by 28 whp (wheel horsepower) and 29 ft-lbs of torque to the wheels
and has proven that the GT4 and Spyder have untapped potential when paired with our suite of performance components
McLaren MP4-12C XperTune Performance Software Tuning In stock formHP (whp): +92 TQ (ft lbs): +82 XperTune Performance software upgrade improves horsepower, torque, and driving characteristics of the McLaren MP4 12C by reprogramming various sensor inputs, air fuel ratios, and boost pressure. Achieve maximum power from the 3. 8L Twin Turbo V8 without sacrificing driveability or reliability by optimizing the engine's performance. Greatly enhances the power and dynamic performance and driveability of this wonderful
