Quote:
Originally Posted by MarylandSpeed
I never have understood why people pay extra for the 3" systems. The 3" Magnaflow for instance necks down to 2.5" in the front to connect to the factory barrel clamp. Additionally..maybe not with Magnaflow as much, but other systems, the 3"s ones almost always drone more because they do not pressurize the exhaust gas as much. The exhaust gas not being pressurized creates more resonance. I am making 650 rwhp and still have room to grow through 1 3/4" stepped to 1 7/8" Kooks, and a 2.5" Borla Stinger.
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So you still get drone even after a tune? I had my AFM turned off because this is what I thought caused the drone?