G4+ Knockblock

KnockBlock G4+ – #KNB The G4+ KnockBlock is an essential tool for tuning and can aid in the early detection of incorrect ignition timing, lean air / fuel mixtures and mechanical issues.

SKU: KNB Category:



  • Listen to one or two knock sensors
  • Special filtering design improves signal to noise ratio
  • Can be used with ear buds, ear phones and noise cancelling ear muffs
  • Long life lithium rechargeable battery
  • Rugged CNC aluminium enclosure
  • Flying lead headphones connector
  • Can be used with all OEM knock sensors
  • Can be used to interface directly to a laptop for recording of engine noise or knock sensor frequency analysis



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