HKS AF Knock Amp 3
HKS AF Knock Amp 3
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In-stock orders are processed within 48 hours; transit time is additional.
International orders include export processing and customs clearance. Duties, taxes and brokerage are extra; final freight charges may change after remeasurement.
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Need help with a return? Request authorization within 30 days of delivery for eligible unused, uninstalled items. See details for exclusions and applicable fees.
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Request return authorization (RMA) within 30 days of delivery for eligible items. Keep items unused and uninstalled, with original packaging and accessories. Electronics, liquids, special orders and other categories are excluded.
Email sales@frsport.com with RETURN and your order number in the subject to request an RMA. Please wait for return authorization before sending your item back.
Wrong part/size or change of mind: a 20% return processing fee applies, plus applicable shipping costs.
Original shipping is non-refundable. For orders shipped free, the actual outbound shipping cost is deducted from the refund. Return shipping is prepaid by the customer.
After payment capture, cancellations and refunds generally incur a 5% processing fee, except for our error, confirmed defects or confirmed carrier loss. The 5% and 20% fees do not stack; only the greater applicable fee applies. Store credit waives the 5% fee, but applicable return fees remain.
Missing, incorrect or transit-damaged items: report within 3 business days of receipt with photos of the product and packaging.
For defective items, contact us for help with the manufacturer's warranty process. The manufacturer decides the claim.
Specifications
Product details shared across all variants.
- Product type
- Air / Fuel Ratio Gauge
- Category
- Motor Vehicle Sensors & Gauges
- Item condition
- New
- Manufacturer type
- Aftermarket
- Shipping dimensions (L × W × H)
- Shipping weight
- 2.5 lb
Billable shipping weight; may include dimensional weight.
The 3rd generation of A/F Knock Amp, Air/fuel and knock monitoring functions in one package with an all new display style.
Product Outline
- High precision measurement of air/fuel ratio is possible with Bosch A/F sensor included in this product.
- Monitor knock through headphones to aid setup of fuelling/ignition with F-CON V Pro or a similar device.
- Knock level threshold can be set and shown in the display by setting knocking conditions.
- The air-fuel ratio and knock level can be output as voltage signals. Connecting the A/F Knock Amp to an F-CON unit allows controlling the air-fuel ratio feedback, knock retard, etc.
Features
- Two A/F sensors can be used together. (Bosch A/F sensor is included.) 1 main unit can measure 2 different A/F values of the V-bank engine or multi-cylinder engine using 2 sensors.
- The product consists of 2 units, a color LCD display/controller and amplifier. The design style is consistent with other HKS electrical parts such as EVC.
