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the Stage 1+ calibration accounts for the colder charge air temperatures the FMIC provides and targets more aggressive ignition timing accordingly
Pressure plate type: ACT Xtreme
1:1 vacuum/boost reference compatibility
The lower spring seat is shaped identically to the OE shock absorber
CNC-machined from 6061 billet aluminum construction
HKS Super Air Filter - 2017-2021 Subaru BRZ / Toyota 86 PDM_head-gaskets the Stage 1+ calibration accountsHKS Super Air Filter 2017 2021 Subaru BRZ Toyota 86 HKS Super Hybrid Drop In Filter The HKS Super Hybrid drop in filter replaces the factory paper filter element with a three layer, triple density dry filter that flows more air while maintaining equivalent filtration. The increased surface area reduces intake restriction most meaningful on turbocharged applications where the compressor inlet draws heavily during boost build. No airbox modification