ONE HEADER OR TWO?????? with a short video

[mike86Cutty]

So one of the suggestions that I got was too add headers on my stock 307. It has brand new flowmaster dual exhaust installed right before I bought it. I looked under the car the pipes from the dual flowmasters goes into a "Y" pipe and into the manifold on the passangerside of the car. Now my question is, looking at headers online I see they come in sets of two. Can I add the other header to the drivers side manifold? or am I comitted to haveing just one header on the passanger side. Please fellas don't rip me apart on this question (I could handle ball busting). Im kinda new to this and just asking for some info. Thanks



http://youtu.be/X4kivJtz-e0 Short Vid on my Cutty (quick walkaround)

 

[mebe007]

You have 2 headers, then a y pipe then the cat, back to a muffler between the gas tank and axle then out the back. That's a standard exhaust for these cars. A set of headers would replace the pair of manifolds. One per bank. You would then need a new y pipe.

 

[FE3X CLONE]

There's no point in just running one header on one bank of cylinders. Even if you could it would totally throw off your A/F ratio from one bank to the other.

If you ran a set of Shorty headers then you could modify the exhaust ahead of the Y-pipe so that it would mate up to the existing Y-pipe.

To be honest, I'd leave the headers alone until your ready to go to a true dual setup.

 

[FE3X CLONE]

You have 2 headers, then a y pipe then the cat, back to a muffler between the gas tank and axle then out the back. That's a standard exhaust for these cars. A set of headers would replace the pair of manifolds. One per bank. You would then need a new y pipe.

Not on a car with a 307. The drivers side manifold feeds into passenger side manifold via a crossover tube that runs under the oil pan. Then a single down pipe from the passenger manifold into the converter then splitting to a y-pipe into two mufflers.

 

[mike86Cutty]

Well the reason why Im wondering about headers is because on another post I asked how to increase h/p and short of dropping a 350 in her. Headers was the next logical choice. How much of a hassle would it be to convert to a true dual exhaust. It seems like just cutting out the "Y" pipe and removing the crossover pipe? and adding to the new pipes from the mufflers to the headers...eliminiating the cat? (if i could). Don't need emmisions testing either. The more I think about adding headers the more likely I will want it to get done.

 

[Black Sheep]

Before you do anything, jack up your car, crawl under, and look at everything. Most of your questions should be answered using common logic.

 

[mebe007]

You have 2 headers, then a y pipe then the cat, back to a muffler between the gas tank and axle then out the back. That's a standard exhaust for these cars. A set of headers would replace the pair of manifolds. One per bank. You would then need a new y pipe.

Not on a car with a 307. The drivers side manifold feeds into passenger side manifold via a crossover tube that runs under the oil pan. Then a single down pipe from the passenger manifold into the converter then splitting to a y-pipe into two mufflers.

oh ok cool and wierd. learn something new everyday.