Quote:
Originally Posted by Icer006
I agree with everything JCL has said, but just be careful when putting a too large of an exhaust. The car (if an automatic) still needs back-pressure for the torque converter. This *could* be the reason why TowX had to tow in lower gears because there wasn't enough back-pressure for the torque converter.
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I wouldn't consider putting a larger diameter exhaust on, unless I was doing something like a forced induction system and had more exhaust gas flow to deal with.
I do agree that reducing the back pressure can reduce low-end torque. I don't see the connection to the transmission torque converter, but it can reduce engine torque. The torque converter is downstream. And once you are moving you should be getting it into lockup mode and removing the torque converter from the equation in any case.
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