★★★★★ 5
Heavy duty
Size: 125 Pack
Heavy duty
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 21, 2026
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
Quick Dispatch:
Your KnockBlock G4+ (KNB) orders ship within 1-2 business days.
Delivery Options:
- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
Order Tracking:
You'll receive a tracking link by email once your KnockBlock G4+ (KNB) ships.
Need Help?
Questions about KnockBlock G4+ (KNB), sizing, or delivery? We're just an email away.
Live Shipping Estimates:
Enter your location at checkout to see available shipping methods and costs for KnockBlock G4+ (KNB) in your area.
Get Shipping Estimates
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
You may also like
4.6 ★★★★★
Based on 2254 reviews
Sort
Product Reviews
★★★★★ 4
Not coated
Size: 125 Pack
These plates are good but not coated
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 22, 2026
★★★★★ 5
good
Size: 125 Pack
good
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 19, 2025
★★★★★ 3
Too expensive. Better deals elsewhere
Size: 125 Pack
The plates are very nice, light weight but way overpriced for the product.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 10, 2025
★★★★★ 5
Plates
Size: 125 Pack
They hold up very well
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 29, 2025
