Quote:
Originally Posted by Jay FX4
Nope.
The cats are not a bottleneck to your exhaust. If anything, you may lose some low-end torque if there's a significant reduction of back pressure.
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Right, but you have the wrong mentality.
Reducing backpressure does not reduce your torque.
Slowing the exhaust down reduces your torque.
Most of the time when you do one, you get the other though.