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Designed for the WRX V3-4 EJ20
Most factory features are supported (Factory traction control not supported
as the MAF sensor is eliminated with the EMU
low fuel level
KnockBlock G4+ (KNB) sensor egt Designed for the WRX V3-4The Link Knock Block is an essential tool for tuning engine ignition timing. It allows a user to connect headphones and listen to the knock sensors bolted onto the engine block, giving you the ability to hear knock as it's happening. This will help you dial in your ignition timing as well as calibrate your ECU's onboard knock control settings. Features a rechargeable lithium battery, dual knock sensor connections, durable construction needed for a
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