SKU: 41272554189

Link ECU KnockBlock G4+ (KNB)

Sale price$279.51 Regular price$310.57
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Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 17 - Jul 22

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Description

Link ECU 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. 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

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

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 41272554189

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4.6 ★★★★★
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Alisha French
Charlottesville, US
★★★★★ 5
3 year anniversary is leather
Color: Brown +Wireless
I bought this for our third year wedding anniversary, as a gift for my husband. The 3rd year is supposed to be a gift inspired by leather. The tray is very durable and has lots of compartments. My husband uses it on his nightstand to keep things that he has in his pocket when he empties them the end of the night. The wireless charger is very convenient, although he prefers to actually plug in his phone rather than wirelessly charge it. The charger cable itself is surprisingly of great quality. The leather isn’t too bad either. Good gift for the price point.
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Reviewed in the United States on July 29, 2025
D
Verified Purchase
DSLR user
Draper, US
★★★★★ 5
Organizer tray
Color: Brown +Wireless
This thing's style is 1960's cool.. Great organizer and charger.
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Reviewed in the United States on January 24, 2026
D
Verified Purchase
Danny Wilcoxx
Phoenix, US
★★★★★ 5
Cute Tray, Bad Charger
Color: Black
Worked for about a month, now it will only charge sometimes. Edit: Seller contacted me and replaced item. It is working perfectly fine now.
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Reviewed in the United States on March 28, 2025
J
Verified Purchase
jessie
Waukegan, US
★★★★★ 3
The charger is slow
Color: Brown +Wireless
Looks great but the charging takes forever
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Reviewed in the United States on May 18, 2026
K
Verified Purchase
Kristi D
Boise, US
★★★★★ 5
Convenient
I bought this long ago and it works well in the kitchen cabinet for organizing my spices that don't fit on the designated shelf. It makes it so much easier to find things and easier to pull them out when needed for cleaning/straightening. I have more of these, in various sizes, to help organize drawers.
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Reviewed in the United States on January 25, 2026

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