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Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Aug 12 - Aug 17
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Description
Link KnockBlock G4+ - Knock Detection Kit / Detonation DetectionKNOCKBLOCK 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. 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
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.
- 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 (using PCLink G4+)
Operating
Charging
What’s In The Box?
G4+ KnockBlock
- 2 sensor looms (attached)
- 1 headphone loom (attached)
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.8 ★★★★★
Based on 10 reviews
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Product Reviews
★★★★★ 5
Works as advertised
Excellent product
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Reviewed in the United States on May 25, 2026
★★★★★ 5
Cleans with no streaking.
I made my own cleaner and these cloths work great! Im so happy that I got these, no streaks, the glass is clear and cleans them faster. Worth the money.
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Reviewed in the United States on December 18, 2025
★★★★★ 5
Secret to Great Auto Glass
Awesome product. I struggled with getting clean streak free glass on my truck. Thought it was the cleaners (multiple). It was the cleaning towel. This one rocks! I've bought 4.
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Reviewed in the United States on April 3, 2026
★★★★★ 5
Soft and durable
I use all the time to clean all my car interior surface
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Reviewed in the United States on May 26, 2026
★★★★★ 4
Work as described
Worked great on finger prints
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Reviewed in the United States on May 22, 2026