WMI Stage 2.5+ Boost Staged Dual Digital


Water/ Methanol Injection Kit benefits:

  • Reduces intake air temperature.
  • Prevent from melting the pistons by decreasing EGT.
  • Increasing the total number of octane prevent knocking.
  • Increase dynamic compression.
  • Increase in combustion efficiency.
  • Reduces carbon monoxide (CO) emissions.
  • Reduces carbon dioxide (CO2) emission.
  • Reduces NOx emissions.
  • Reduces HC emissions.

Water-Methanol Injection Kit features:

  • When the pump starts, the led turns on and you can set the desired level.
  • The kit has the latest technology digital equipment.
  • Electronically controlled pump controller.
  • All parts are produced by methanol-durable materials.
  • Easy installation with special plugs.
  • Optional transfer pump offers up to use.
  • Optional horizontal float switch.

Instruction Manual


Standard Nozzle Size

Mounting Method

Custom Nozzle Select

Additional information

Stage 2.5+ Turbo Dual: The all-new stage 2.5 water-methanol injection dual-stage controller from Bosphorus Innovations gives you the benefits of a boost gauge and water-methanol controller/ fail-safe all in one!  The new controller comes with a built-in 10 bar/ 145 psi manifold absolute pressure sensor. That allows you to set water-methanol in desired boost pressure. The injection stage is adjustable to match what the engine requires.

The new white and red dual-tone color LCD screen shows boost, injection, test mode, fault codes, setting response time, resolution, fine adjustment, power saving mode, lock the keys, and output modes in a bright easy-to-read screen.

The water/ Methanol Injection pump has no pressure cut-off switch for eliminating any oscillation/pulsation. Internally bypasses for a smooth constant even flow at the nozzle.  Our standard water-methanol pump is suitable for up to 1000hp. If you need more than 1260 ml/min or 20 GPH. Please choose the bigger pump and controller.

The new integrated solenoid valve and the nozzle assembly offer 100% safety for all injection systems utilizing a rear-mounted reservoir, injection points under vacuum, or installs where the injection nozzle is lower than the water-methanol reservoir. The solenoid fits the nozzle between the pump and injection point and locks fluid in place when not in use adding safety and peace of mind to any injection system. The solenoid-mounted nozzle works in an injector style. Because the reaction time is fast.

All metal equipment has the durability to corrosion of methyl alcohol and water, which constitute corrosion impact-resistant nickel-plated brass, brass, and EPDM grade plastic material.

All of our products are guaranteed for 2 years against the fabricated problem from the date of receipt by you.

Nozzles have a flow rating of your choice:

95cc / 125cc / 157cc / 189cc /  220cc / 252cc / 283cc / 315cc / 378cc / 378cc / 440cc / 504cc / 567cc / 630cc / 755cc / 880cc / 1000cc / 1130cc / 1260cc / 1575cc / 1890cc / 2200cc

1.5 GPH | 2 GPH | 2.5 GPH | 3 GPH | 3.5 GPH | 4 GPH | 4.5 GPH | 5 GPH | 6 GPH | 7 GPH | 8 GPH | 9 GPH | 10 GPH | 12 GPH | 14 GPH | 16 GPH | 18 GPH | 20 GPH | 25 GPH | 30 GPH | 35 GPH

100% Water:  10-15% Water/ Fuel ratio or 0.5-1cc per HP

%50-50 Water-Methanol: 15-20% W-M/ Fuel ratio or  1-1.5cc per HP

100% Methanol: 20-25% Methanol/ Fuel ratio or 1.5-2cc per HP

Please indicate which nozzle size and color of hose you prefer before the order item. If you don’t specify the size, we will send you a 252 ml/min (4 GPH) nozzle and Red Hose.


  1. High-Pressure Diaphragm pump
  2. 2 x 3/8″ NPT – ¼” compression type pump fittings
  3. 2*Nozzle
  4. 2*40-micron stainless steel filter
  5. 2*Nozzle mounting bung
  6. 2*Solenoid valve
  7. 1/8″ NPT – ¼” compression type hose fitting
  8. 1/8″ NPT – ¼”- ¼” compression type hose orienting tee fitting
  9. Gauge Controller
  10. 5mm – 1/4″ elbow hose fitting for gauge
  11. 1/4″ Tee for vacuum/ boost source
  12. Controller with wiring loom
  13. 1,15 Gallon/ 4,6 Quart/ 4,3 Liter plastic tank
  14. Plastic tank cap
  15. 1/8″ NPT – ¼” compression type tank fitting
  16. 20 FT/ 6 meter ¼” OD. injection hose
  17. 2*Fully insulated butt cable connector
  18. Fully insulated Ground cable connector
  19. 5*zip tie
  20. 2*screw and 2*washer for tank
  21. 4*screw and 4*washer for pump
  22. 3d sticker
  23.  Stickers
  24. Installation manual
Weight 3.5 kg
Dimensions 35 × 22 × 15 cm
Car Brand

Acura, Alfa Romeo, Aston Martin, Audi, Bentley, BMW, Bugatti, Buick, Cadillac, Caterham, Chery, Chevrolet, Chrysler, Citroën, Cupra, Dacia, Daewoo, Daihatsu, Dodge, DS Automobiles, Eagle, Ferrari, Fiat, Ford, GAZ, Geely, Hennessey, Honda, Hyundai, Ikco, Infiniti, Isuzu, Jaguar, Kia, Koenigsegg, Lada, Lamborghini, Lancia, Lexus, Lincoln, Lotus, Maserati, Mazda, McLaren, Mercedes Benz, Mercury, MG, Mini, Mitsubishi, Morgan, Moskwitsch, Nissan, Oldsmobile, Opel, Other, Pagani, Peugeot, Plymouth, Pontiac, Porsche, Proton, Renault, Rolls-Royce, Rover, Saab, Saturn, Seat, Skoda, Smart, Subaru, Suzuki, Tata, Toyota, Volkswagen, Volvo

Engine cc

1601cc – 2500cc, 2501cc – 4000cc, 4000cc +

Fuel Type

Forced Induction Gasoline, Forced Induction Diesel


401-450hp, 451-500hp, 501-550hp, 551-600hp, 601-650hp, 651-700hp, 701-800hp, 801-900hp, 901-1000hp, 1001-1100hp, 1101-1200hp, 1201-1300hp, 1301-1400hp, 1401-1500hp

Hose Color & Type

Nylon Blue, Nylon Red

Tank Size

Dually Tank 8.6 Lt/ 2.3 Gallon, Large Tank 10 Lt/ 2.64 Gallon, No Tank, Standard Size 4.3 Lt/ 1.15 Gallon, XL Tank 20 Lt/ 5.28 Gallon