Originally posted by TJ:
The part that's missing is the low rpm torque, which typically is increased by retaining some back pressure...so, back pressure is also good, and bad.
Depends when you get it.
No, low-end is felt by higher exhaust gas velocity, which comes from smaller diameter exhaust. Like I said, backpressure is caused by something that hinders exhaust gas, like a muffler or cat. You wouldn't notice an increase of low-end torque by adding extra cats, would you?
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