Toyota 86 / Subaru BRZ / Scion FR-S (ZN6/ZC6, 2013-2020): Power mods

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What are the best power mods for the Toyota 86 / Subaru BRZ / Scion FR-S (ZN6/ZC6, 2013-2020)?

It depends on the car’s condition and how you use it. These are the 1 power build entry we have sourced for this car: Header and tune to fill the torque dip (Reported). Each lists caveats, related problems and sources so you can match it to your goal.

Header and tune to fill the torque dip Reported

The usual first power step is an equal-length or unequal-length header plus a tune made for it. This mainly fills the mid-range dip around 4,000 rpm rather than adding much peak power. A parts seller quotes about 14 lb-ft in the dip from the header and about 20 whp from the tune, with more on E85.

Caveats: Gains come from a retailer, not independent dyno tests. Header swaps can affect emissions compliance. A tune is needed with a header.

1 source(s) · Last verified 2026-10-26

Related issues: Torque dip around 4,000 rpm

Sources (1)

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