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Petrol & diesel tuning boxes for: CMD (Cummins MerCruiser Diesel) Marine / QSB / QSB 5.9 305 PS

Buying online? - use voucher code BOX10 at checkout and save 10% off all Purchases

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    CHOOSE YOUR BOX BELOW

    DTUK® Marine-Chip

    torque output before 305PS standard
    torque output before 1062NM standard
    power output after 365PS tuned power
    torque output after 1280NM tuned torque
    DTUK® Marine-Chip

    Improve your Cmd (cummins mercruiser diesel) marine's engine power and torque with the plug and play DTUK® Marine-Chip tuning box. Compatible with Cmd (cummins mercruiser diesel) marine Qsb qsb 5.9 305 ps.

    More Information >>
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    £499 £549
    SAVE 10% - VOUCHER BOX10
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    ADVANTAGES OF DTUK BOXES WITH MOBILE APP CONTROL

    Bluetooth Application benefits:

    1. Our Bluetooth modules are a brand new platform with new internals, a faster processor for a more refined controlled tune & advanced technology for digital and analogue applications. The only similarity is the external casing but with a all new Red Keypad.

    2. The bluetooth application allows the user to adjust the programs and fine tuning settings, control the engine warm up timer (between 1-15 minutes), view live readings of your engines sensors the tuning module is connected too all from the convenience of smart device.

    3. Over the air updates now available – great convenience if you change vehicle or if a new software update becomes available.

    4. If you upgrade to the bluetooth module you receive 2 years extra module warranty & the ability to transfer between both Petrol & Diesel applications if applicable.

    5. Also upgradeable for use on vehicles that require SENT Protocol Digital Tuning technology.

    6. Application available for all devices running Android 7.0 and IOS10 & above. –

    DTUK® Marine-Chip

    Basically 95-99% of cars unto 2017 used analogue sensors, from 2017 onwards more and more manufactures are using Digital sensors ( SENT). The non app box cant be used on these new style of sensors, where as the box with app control can be. This means that it in the future when you come to change your car this module can be transferred to a lot more vehicles*. Hope this explains things in greater detail for you

    *subject to vehicle age/type and excludes any new future vehicle manufacturer product improvements

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    User adjustable Power settings

    Up to 40% increase in power and torque

    Up to 20% increase in fuel economy (depending on driving style)

    3 Year Module Warranty - TuV and CE Approved Technology

    12/24/36/48 Months Finance (offered at checkout)


WHY BUY FROM DTUK

We're asked this question all the time, and if we're honest it certainly is a minefield out there. So many websites, so many different options and prices all making different claims. Who should you trust?


improve power and torque

Once you have bought and fitted your Diesel Tuning Box from DTUK you can expect between 20-40% more power and torque.

improved fuel economy

In today's climate it is particulary important to save money. With a DTUK tuning box your engine can run more efficiently, giving you additional savings as well as performance.

rolling road graphs

Rolling Road (Dyno) Graphs are an excellent way of seeing how your vehicle is performing. We are happy to publish our graphs and prove how vehicles perform with our systems fitted. Please click here to view some of our existing clients rolling road graphs.

simple and safe

*TUV and CE approval are guarantees that our systems are manufactured to meet the highest independent standards of quality and reliability. ISO 9001 again guarantees that all our systems have been manufactured (by DTE Systems) under the strictest conditions of quality control. This is a difficult, expensive and time-consuming process to seek these approvals and only products that meet these high standards will be granted these approvals

14 days money back guarantee

We're dedicated to Customer Service All orders are despatched the same working day if ordered before 4pm. All DTUK Diesel Tuning boxes come complete with a 3 year systems warranty, as well as a 14 day money back guarantee. If you are not 100% satisfied with any aspect of your DTUK tuning box, please contact us so that we can help you solve any potential problems. If we can’t help you then simply return the unit to us in its original packaging and in a saleable condition and we will refund you.

The details

  • A range of Multichannel Petrol, Diesel and Hybrid Tuning Boxes suitable for nearly all applications.
  • Continual development including updated processors and hardware to ensure that we stay at the forefront of tuning technology.
  • Dyno proven software written and developed in-house by DTUK®
  • Fully Adjustable Digital Petrol and Diesel Tuning Systems offering up to 40% dyno proven gains in Power and Torque
  • Up to 20% improvement in Fuel Economy**
  • Programmed specifically for your car, van, truck, boat, motorhome or tractor
  • Improved throttle response with a smoother driving experience
  • Improved low rev range Torque, ideal for towing
  • Suitable for both manual and automatic transmissions
  • Software purpose written for vehicles fitted with a diesel particulate filter (DPF)
  • 5 Year* Module Warranty for complete peace of mind. (*subject to terms and conditions)
  • Transferable to your next vehicle, where compatible. Speak to us for more details
  • Simple 10 minute average self-fitment, or Nationwide Fitting via our Dealer Network (contact us for details and costs)
  • 24 Hour UK based technical support via email
  • Next Day Delivery via Royal Mail Special Delivery (UK only)
  • 14 Day Money Back Guarantee
  • Future proof yourself, the switch to digital 

Read some of our QSB 5.9 305 PS testimonials below...