Just had them installed at Performance Motorsport. It literally took 20 minutes to get OEM cats out from the moment they popped the hood. The demon bolt aint sh!t for PM. I'm going to make a detailed thread when i get home, but in the meantime my quick impression is its louder than before but not much. The ART Pipes still need to break in so we'll see how they sound in a week.
Power, the top end has tremendously improved it simply hauls. The low end is brighter but i dont notice the torque increase as much as i did in my 350Z probably because it was auto. Regardless ive only driven it about 20 miles and all of it was highway. Detailed thread to come later.
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