The 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 temporary device that get's moved between vehicles, special filtering to improve signal to noise, and a simple no-frills design that doesn't require a laptop or time investment to setup.

What’s in the Box?
G4+ KnockBlock
2 sensor looms (attached)
1 headphone loom (attached)
Quick Start Guide
1 USB cable mini
2 Bosch type doughnut OEM knock sensors
2 small Link Engine Management stickers