Cool Air Intake

This is a cool air intake. It allows more cool air to go in to the engine wick let the engine run easier. that gives the engine more power.

Heater

A header allows the engine fumes to be released from the engine easier.  This happens because in stead of just one pipe letting the engine fumes exit the engine there are four pipes releasing the fumes.  This allows the engine to run easier so it has more power.         

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Intercoolers

The intercooler lets you adjust the amount of air that is taken in to the engine. it also adjusts the temp of the air. This reduces the chance of meltdown and allows more power.