/Stage 2 & 3 Applications/Honda

Honda Monkey 125 (18-21) Stage 3 DNA Billet Top Air filter


Honda Monkey 125 (18-21) Stage 3 DNA Billet Top Air filter


Honda Monkey 125 (18-21) Stage 3 DNA Billet Top Air filter


Top Style

Rubber Top

Filter Use

Race and Road use

Box Includes

2 Hexagonal Air Filters

Filter Design

DNA's Advanced FCd (Full Contour design)

Stage Application

Stage 3

Filtering Efficiency


Increase in Air Flow


Modifications Needed

No Modifications Needed - Plug & Play

DNA presents a new stage 3 application for the Honda Monkey 2019. This stage 3 filter kit comes with two hexagonal air filters that attach to the custom DNA air intake system. The filters come with a billet top giving a unique look.


  • Stage 3 Kit MK2 version Derlin CNC machined including a pair of DNA hexagon filters.
  • The filtering efficiency is extremely high at 98-99% filtering efficiency, with 4 layers of DNA® Cotton for maximum engine protection.
  • The flow of the DNA Stage 3 Air Box Kit is: +103.70% for the AK-H1N19-S3-MK2 more than the Honda stock air-box, at 685.80 LTR/MIN @ 10 mBar.
  • This DNA®Stage 3 Air Box Kit is plug & play with no modifications needed on the throttle body or frame. Intake hose is included in the kit with a specially designed ventury inside. Breather hose and temperature sensor can be bolted on the DNA air-box.
  • This DNA®Stage 3 Air Box Kit is designed as a High flow Air Box Kit for Race and Road use.
  • Please check your local regulations. In some countries it is legal only for race use.
  • Fuel recalibration is required.
  • Power by quality you can trust!

    Power by quality you can trust!

    We, at DNA, proudly introduce a filter that can last the life of the vehicle. Strict quality control for construction & materials, chosen only by their highest quality, are some of the factors that allow us to offer a Lifetime Warranty!

    The Anatomy

    This is what Power is made of!

    A DNA High Performance Filter is a high quality, next generation multilayer cotton gauze, flameproof, oil impregnated air filter.

    This very special cotton is designed by DNA's R&D engineers for High Performance filtering purposes. The basic media is a non woven surgical cotton gauze with a modified TEX & THREAD, with extremely high strength of break. This unique cotton media, actually is a “hairy hybrid” featuring extremely high air flow rates and excellent filtering efficiency that exceeds 98%.

    FAQs About DNA Filters

    The DNA Air Flow Tests

    For the air flow tests, we use the most advanced flow bench available today. The ROTRONICS FlowScan, is a totally computerized flow bench that measures:

    • Mass of the air
    • Flow of the air
    • Temperature of the air
    • Absolute air pressure
    • Differential air pressure
    • Speed of the air at various points (Pit ot tubes)
    • Absolute humidity of the air

    The complete procedure is automated and computer controlled, eliminating human errors.

    The DNA Dyno Tests

    For the Dyno Tests, we use the industry standard Dynojet chassis dyno equipped with eddy current load control, Dynojet 250LC. Our dyno cell is equipped with a variable flow air cooling system, designed to precisely simulate real world conditions.

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