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What size for custom dual setup?

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Old Mar 17, 2006 | 09:35 PM
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Default What size for custom dual setup?

I am going to be running an LS6 intake, lid, TSP magic stick 3, and pacesetter LT headers. What size pipes would I need to be running for a custom dual setup? Thanks.
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Old Mar 17, 2006 | 09:54 PM
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From: Citrus Heights, CA
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2.5"
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Old Mar 17, 2006 | 10:05 PM
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2.5" would be sufficient, but I'd go ahead and put 3" if you're not lowered.
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Old Mar 17, 2006 | 10:28 PM
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2.5" will be fine unless you plan to make, what is is, >450 rwhp in the future.

Leaving that possibility open I would go 3" unless you are lowered, in which case I would return to stock ride height and go 3". Suspension geometry is a little off when lowered, and you might want to do something fun like spray it in the future.
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Old Mar 18, 2006 | 09:46 AM
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If you're using an X crossover, you want the crossover diameter to match the header collector size. IE - 3" collectors, you would run at least 3" to the X. You can reduce after the X if you want.

This is what Dr. Gas recommends with their X.
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