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Installing A Performance Exhaust For A Ford Mustang - Exhausting The Possibilities

Ford Mustang On Car Lift
After the baseline tests,... 
   
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Ford Mustang On Car Lift
After the baseline tests, we took the fastback to Fantasy Muffler in Buena Park, California. Here, the car is on the lift and ready for a look underneath. We must disconnect the pipes from the manifolds before they can be removed.
Ford Mustang Engine View
There's plenty of clearance... 
   
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Ford Mustang Engine View
There's plenty of clearance between the small-block exhaust manifolds and the shock tower, as this car was designed to accommodate the much larger 390 engine.
Ford Mustang Under The Car
Underneath the Mustang, the... 
   
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Ford Mustang Under The Car
Underneath the Mustang, the project began by cutting the header pipe on both sides of the engine. Next, they were disconnected at the exhaust manifolds and then removed from the car.
Ford Mustang Under The Car
This under-the-car view of... 
   
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Ford Mustang Under The Car
This under-the-car view of the left manifold shows the tight quarters the exhaust pipe must negotiate. When the cross shaft for a manual clutch linkage is added here, things become even more complicated.
Ford Mustang Under Car View
On the right side of the car... 
   
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Ford Mustang Under Car View
On the right side of the car we can see that clearance is a little better. The starter and the automatic transmission dipstick tube are two heat-sensitive areas to consider. Transmission cooling lines are also a factor.
Ford Mustang Removing Manifold
With the header pipes disconnected... 
   
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Ford Mustang Removing Manifold
With the header pipes disconnected at the bottom, it's simple to remove the manifold from the top.
Ford Mustang Removing Manifold
All spark-plug wires must... 
   
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Ford Mustang Removing Manifold
All spark-plug wires must be disconnected and moved out of the way before the manifolds can be removed. Although it is not mandatory, you might remove the spark plugs, as it is easy to damage the ceramic insulator with the manifold or header flange.
Ford Mustang Intake Manifolds
With the log manifolds off... 
   
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Ford Mustang Intake Manifolds
With the log manifolds off the engine, it's interesting to compare the two castings. Although the K-manifolds seem to have smoother contours and slightly longer runners, the ports and exhaust openings are the same sizes.
Ford Mustang Installing Manifold
Installing the K-code manifolds... 
   
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Ford Mustang Installing Manifold
Installing the K-code manifolds is easy because they can be installed through the top and attached to the cylinder head with little difficulty. The K-code casting sometimes requires different attaching hardware.

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Ford Mustang Research
Ford Mustang The new Ford Mustang offers solid performance and fuel economy. The V8 standard engine in the Mustang gives you 315 horsepower with an estimated 20 mpg. It can seat 4 people comfortably. Also check out the Mercury Sable and the Ford Shelby GT 500.

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