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Editing Step 8 —

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Using the supplied vacuum fittings as a guide, drill holes in the intake tube where you marked. Be sure to start with a smaller hole before going larger. It is always possible to enlarge a hole, it is impossible to make it smaller once it has been drilled.

The VC breather hose and AAV connections are optional. The IAT MUST be installed.

Be sure to CLEAN the air intake system before installing it. Compressed air works best.