I went ahead and bought and installed an MSD DIS-4 in my car. Turns out I need a tach adapter to make it not throw a code, so I unplugged the MSD box and put in the bypass plug (returns everything to stock) and now when I turn my car off, but dont open the door, the PCM? (blue thing in glove...
The setup is 2.5in tubing from the 3rd cat back, no mufflers.
http://www.we-todd-did-racing.com/wetoddimage.wtdr/wNDIyNTM4NnM0MTNkZmQzMXk1NDE%3D
Lemme know what you think. :)
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