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Custom manifold exhaust pipe?

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Old 09-19-2007, 01:26 PM
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Custom manifold exhaust pipe?

Has anyone made a custom pipe from the manifold to eliminate the crossover pipe? By using a mating flange and custom bent exhaust tube so it exits under the passenger side as a dual exhaust? Would this help fuel economy and power?

The exhaust restriction with the crossover pipe seems like it would hurt performance a lot, and for the life of me I can not figure out when in the hell they made it this way. Seem like a factory power robbing setup to me, not to mention extra heat build up.

The replacement headers are way too expensive, this is why I'm asking what the outcome of this fix would be, good or bad?
Old 09-19-2007, 01:35 PM
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This is for a 1990 3vze 3.0 v6 motor BTW...
Old 09-19-2007, 04:27 PM
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Originally Posted by corvey
Has anyone made a custom pipe from the manifold to eliminate the crossover pipe? By using a mating flange and custom bent exhaust tube so it exits under the passenger side as a dual exhaust? Would this help fuel economy and power?

The exhaust restriction with the crossover pipe seems like it would hurt performance a lot, and for the life of me I can not figure out when in the hell they made it this way. Seem like a factory power robbing setup to me, not to mention extra heat build up.

The replacement headers are way too expensive, this is why I'm asking what the outcome of this fix would be, good or bad?
https://www.yotatech.com/forums/f116...estions-90037/


Last edited by AlaskaToy; 09-19-2007 at 04:28 PM.
Old 09-19-2007, 04:41 PM
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Awesome! Figures I'm not the only to think of it... Way cool mod there Except I want dual exhaust
Old 03-15-2011, 12:03 PM
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Hows the crossover elimination treating you?
Im thinking of starting mine in a day or so
Old 03-17-2011, 08:01 AM
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yes please do tell
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