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» Tech Guide: Stage 2 Power

Requires all of the Stage 1 Mods.

Step 1:
Upper I/C Pipe
The factory Intercooler piping contains a few more bends that act as restrictions. By replacing it with a unit containing less bends, you're able to free up some valuable air flow. Some intercooler pipes may require modification of the battery location.
See all available I/C Pipes

Step 2:
Intake Pipe (MAF Pipe) & Filter
The factory intake pipe which connects the MAF to the turbo can be replaced with a smoother, free-flowing aftermarket piece in order to further improve airflow. This is suggested as a Stage Two modification due to the need of a fuel controller. This upgrade will not necessarily add horsepower on its own, but it should help all other modifications perform better and may help improve throttle response.
See all available Intake Pipes
See all available Air Filters

Step 3:
Fuel Injectors/Fuel Pump
Depending on how drastic your plans are, you may require more fuel. This means your stock injectors and fuel pump will need to be replaced with higher flowing aftermarket units.
See all available Fuel Pumps/Injectors

Step 4:
Larger FMIC
Everyone who was waiting for the Evo to come over to the states, was happy to see the car equipped with a factory FMIC. For the stock power levels, the factory piece works well. But once you start making some huge gains in power, you'll want a larger unit that can cool more air.
See all available FMIC Kits

Step 5:
Tubular Exhaust Manifold
The factory exhaust manifold is actually a good flowing piece. However, there are some better flowing, stainless steel tubular units available on the aftermarket that will help bump up the power output.
See all available Exhaust Manifolds

Step 6:
At this point, you're probably putting down some good power in the low RPM range. In order to breathe some life into the top end (as well as the bottom), some aftermarket cams are in order. At this stage, you'll notice a drastic gain in power output.
See all available Cams

Of course, there are many more modifications that can be done to increase the power output of your Evo, including internal engine modifications and larger turbo choices that will radically change the demeanor of your Evo. We'll add more options in the near future, but for now, practice fine tuning your car to make maximum power.

Try to keep in mind that repairs will need to be made when you start making these power levels due to the simple fact that things tend to break. Plan for it.
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