http://www.dmhperformance.com/ecutout.htm
I know that many of you will think why installing this instead of a Cat-Back system. I just can imagine how many people will be wondering: "why that guy decide to use it ?".
The answer is easy, the reason that I decide to use it on my SI is because local laws prohibits the use of aftermarket exhaust systems for performance or noise purposes. I don want a shinny exhaust that will attract police that is dying to give me a fine of $100 for changing the exhaust.
With the E-Cutout, with the touch of one finger I can open a valve on the exhaust system that will reduce to almost zero backpressure. IT sounds horrible like a top fuel racing car but at least give a few ponies.
Here is the dyno chart with a before and after run, showing the gains fo the e-cutout.
This is perfect for those who dont want to spend a lot of money on a catback and also want to look stock in the outside. I installed this between the DCRH O2 sensor and the end of the header.
I dont have pics because right now looks horrible, I will take it to another person that have lots of experiences in doing custom pipes.
Here is the video clip from inside the car.
Here is the video clip from outside the car.