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 O2 Sensor Restrictors (Pair) View larger

Redstar Tunable straight 02 Spacer

New product

Removing of factory catalytic converters will trigger a сheck engine light (can be eliminated with optionally O2 sensors restrictors). Firmware update recommended to get maximum performance gains. 

sold individually 

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$22.50

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Sold individually 

recommendations:

use middle insert to start if no CEL then you’re good to go. If you get a CEL try the other inserts and retest after clearing codes. 

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