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Link-G4 KnockLink Kit - Includes Knock Sensor+Loom (G4KNLK)

$375.00
$375.00
$375.00

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KnockLink is a self-calibrating, visual knock warning tool. The KnockLink is designed for tuning, street and race use. Will require a knock sensor to function (sold separately) or you can purchase the KnockLink Kit that includes the Knock Sensor and Loom.

The G4 KnockLink is the only detonation warning device on the market that requires no setup. Other systems require time consuming gain, frequency and noise settings to be adjusted. Without proper knock listening tools, this can prove difficult if not impossible. The KnockLink requires none of this, just wire in and start the engine.

Even light detonation will damage an engine over time. The G4 KnockLink's microprocessor continuously scans the knock signal and warns for any knock occurring. The engine's RPM and load is automatically 3D profiled by the KnockLink, continuously storing and dynamically adjusting this noise profile map while looking for the particular knock frequency.

Operation is simple. The colour of the LED represents four different modes:

  • Dim Blue - KnockLink is powered, waiting for the engine to be started
  • Flashing Blue - KnockLink has detected the engine has started and is now calibrating
  • Dim Green - KnockLink is adapting to the engine's noise profile and listening for knock
  • Flashing Red - KnockLink has detected knock. Avoid large throttle openings, seek professional advice
Link-G4 KnockLink Kit - Includes Knock Sensor+Loom (G4KNLK)

$375.00

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