Improve the tone of your exhaust, increase power and save weight from your 991 Carrera with a Valvetronic Center Muffler Bypass X-Pipe. This Valvetronic exhaust preserves the functionality of your stock valved system and if your car does not have a driver controlled valved system you can add that functionality with our valve controller. Just select "Standard Exhaust" from the dropdown menu. This exhaust great compliment to either the factory valved side mufflers or to Fabspeed's Maxflo Performance Side Exhaust System.
With the valves open you'll be treated to an aggressive sporty exhaust note and with them closed you'll experience a smoother tone than the factory Porsche exhaust system.
This system saw an increase of 16 whp and 14 ft/lbs of tq over the stock exhaust system when tested on our in-house dynojet.
Does my car have a valved exhaust:
The easiest way to determine if your 991 is equipped with a factory valved exhaust is to look at the tips. A factory valved exhaust will have a pipe located in each tip outlet. The outer tip will be clamped to the tip pipe, while the inner tip pipe will be floating inside the inner tip. On non-valved cars there is only a single tip pipe that the tips bolt to.
NOTE: This Valvetronic Muffler Bypass X-Pipe can be only be used cars equipped with a valved factory exhaust. This system is not compatible with cars that are equipped with a standard non-valved exhaust. It is possible to make a non-valved car into a valved car by upgrading to our full Porsche 991 Carrera Valvetronic Exhaust System with valve controller.
Click Here For Install Instructions for Porsche Homelink Connection For Valvetronic Exhaust Control
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