Skip to product information
FR SPORT
HKS AF Knock Amp 3
$1,028.16
Frequently bought together
Free shipping on orders over $150
Hassle-free returns & exchanges
Secure checkout — Shop Pay, Apple Pay & all major cards
Product details
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.
SKU: 0QKHR
Why customers choose Ride Rite
Tesla & EV specialists
Every part is matched to your exact car — verified fitment, not a generic catalog.
Mobile install across the Bay Area
Skip the shop — our team comes to you for professional installation throughout California.
Free, fast shipping
Orders over $150 ship free and fully tracked, with most parts leaving the warehouse quickly.
Real human support
Talk to actual suspension specialists before and after your purchase — never a call center.
