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Tuned port injection simply means that all the intake "tubes" are equal in length. This same terminology is used for exhaust headers, tuned headers have equal length tubes from the head to the collector that attaches to the exhaust pipe. That explains the sometimes crazy looking bends on them.
It depends on if you are going with shorties, long ones, equal length, or non equal length. It will really only add 1-10 horsepower depending on the header and exhaust system.
Normally a cars engine uses a cast iron manifold to expel exhaust gasses. Heavy, inefficient, but they work. Headers are usually equal length tubes that replace the manifold. Lighter and more tuned they give a few more horsepower. Sometimes to make them equal length, they look like a bowl of tubular steel spaghetti.
Yes they are equal in length
A Square has four equal length sides
A square has four sides of equal length!
Headers are the pipes that connect to the exhaust heads. Commonly referred to as the manifolds headers are more often made of pipe that have been engineered to create equal back pressure to the engine at each exhaust port on the head, thereby allowing the engine to run more efficiently and evenly.
4 sides of equal length.
The answer depends on which aspect of a rhombus. Its sides are of equal length but its diagonals are NOT!
A square (a by a) and a rectangle (a by b) can have sides that are of equal length.
Tessellate2D shapesQuadrilateralfour sides
An isosceles triangle has 2 sides of equal length. The other two types are scalene (with no sides of equal length) and equilateral (with all sides equal in length)