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GrimmSpeed BRZ//FR-S Intake User Manual

Page 13

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17. This step is critically important, so proceed with caution! The air filter features an

internal radius that is very effective in speeding up the intake air as it passes the
MAF sensor and can affect AFRs greatly. The base of the filter should sit 1 inch from

the flat face of the MAF flange (figure 21). Tighten the hose clamp until the filter is

securely mounted to the intake tube.