Fabspeed Porsche 981 Cayman GT4 Fabspeed GT420 STREET Performance Package (2015-2016) BMW X6M E71 Please see our ECU Tuning

Please see our ECU Tuning product for the later models 993 Carrera's

Any performance-enhancing changes generate additional strain on the engine and drivetrain

Innovative Dual-Core Design (Industry Exclusive) vs

Saves 25 lbs from the rear of the vehicle for much better handling

Porsche 958 Cayenne S 4

Fabspeed Porsche 981 Cayman GT4 Fabspeed GT420 STREET Performance Package (2015-2016) BMW X6M E71 Please see our ECU TuningWhy We Choose HJS Catalytic Converters: HJS German imported catalytic converters are made from some of the highest grade materials you can find in a catalytic converter. This yields high performance gains and longevity so it wont deteriorate over time like lower grade catalytic converters. These catalytic converters flow up to 93 95% of a straight pipe in most applications. The benefit is that you get the "straight pipe sound" while still being able