Loss of low end torque with an aftermarket exhaust? - LotusTalk - The Lotus Cars Community
 
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Old 12-20-2012, 09:26 AM   #1 (permalink)
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Loss of low end torque with an aftermarket exhaust?

Will I loose some low end torque if I go with a aftermarket exhaust and larger diameter headers? Is a certain amount of back pressure needed for torque?
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Old 12-20-2012, 07:53 PM   #2 (permalink)
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Allan,

Our experience is no. The 2zz likes to be opened up. Our 4-1 SC headers have added power in NA and SC applications.

-Fred
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Old 12-21-2012, 05:55 AM   #3 (permalink)
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The myth of backpressure?

Myths about "back-pressure" - Mustang Evolution
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Old 12-21-2012, 06:45 AM   #4 (permalink)
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What low-end torque would that be, then?
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