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Link-KnockBlock G4+ (KNB)

Link-KnockBlock G4+ (KNB)



Regular price $560.00
Sale price $560.00 Regular price

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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. It is used it with ear buds, headphones or noise cancelling ear muffs and features special filtering to allow you to listen in and detect knock early.  


  • Listen to one or two knock sensors
  • Special filtering design improves signal to noise ratio
  • Can be used with ear-buds, headphones or 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 (using PCLink G4+)


Please note headphones with their own noise filtering may be unsuitable for use with the knock block.

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


Specifications:

Operating
Install the knock sensor/s in a suitable location on the engine (typically on a solid mounting point on the block near the cylinder head)
If only using one sensor, leave the unused sensor cable disconnected
Turn the volume control clockwise until it clicks. The LED indicator will turn blue when the KnockBlock is operating
Turn the volume to the minimum setting (most anti-clockwise)
Connect headphones to the 3.5mm audio jack
Run the engine and carefully increase the volume (clockwise) until engine mechanical noise can be heard. Adjust to a comfortable listening volume
Charging
Turn off the KnockBlock by turning the volume control anti-clockwise until it clicks
Connect the USB charging cable to the KnockBlock’s Mini USB connector. Can be charged from any standard USB charger PC, laptop, car or cell phone charger (2.1A at 5V max)
The LED indicator will show red while charging. When the indicator turns off the battery is fully charged
Charge the G4+ KnockBlock after use and before storage



Link-KnockBlock G4+ (KNB)

$560.00

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Does it come with a warranty?

Every Link ECU product is engineered to the highest standards and backed by our industry-leading Lifetime Warranty. This means your purchase is protected for as long as you own it — no time limits, no hidden clauses. We stand behind the quality, reliability, and performance of our products, so you can tune and drive with complete confidence. If a covered issue ever arises, we’ll make it right — that’s our promise for life.

What happens if I don't like it?

Our dedicated support team is here for you 24/7 to answer questions, troubleshoot issues, and make sure you get the most out of your purchase. If you ever feel a product isn’t right for you, we offer hassle-free returns at any time — no complicated policies, just straightforward, customer-first service.

How fast is shipping?

We ship anywhere in the U.S. with fast, reliable 2-day delivery — so you can get the performance parts you need without the wait. No matter where you are, your order is packed with care and on its way within 48 hours.

What's the returns policy?

We stand behind every product we sell. If for any reason you’re not completely satisfied, you can return your purchase at any time — no time limits, no hassle. Our 24/7 customer service team is here to answer questions, guide you through troubleshooting, or help you start a return whenever you need. Combined with our industry-leading Lifetime Warranty, you can shop with complete confidence knowing you’re protected before, during, and long after your purchase

Don't take our word for it...

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