Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 7 - Jul 12
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
DinanTronics Elite Performance Tuner for MINI | F56 JCW (Before 12/2014) (NLA)Note: This kit is only compatible with B48 MINI Cooper JCW's that have a production date before 12 2014. Vehicles produced after this date will need a D440 0056 kit as they use different connectors. Please consult the installation instructions to determine definitively what connectors are used on the vehicle in question. ONLY applicable to John Cooper Works vehicles. Benefits of the DINANTRONICS Sport Performance Tuner for MINI JCW B48 Engines: ELITE
Note: This kit is only compatible with B48 MINI Cooper JCW's that have a production date before 12/2014. Vehicles produced after this date will need a D440-0056 kit as they use different connectors. Please consult the installation instructions to determine definitively what connectors are used on the vehicle in question. ONLY applicable to John Cooper Works vehicles.
Benefits of the DINANTRONICS Sport Performance Tuner for MINI JCW B48 Engines:
- ELITE (DINANTRONICS Performance Tuner ONLY) Maximum Power on the early (<12/2014) MINI F56 Cooper JCW (B48 Engine): 280 HP, 310 lb-ft of torque.
The DINANTRONICS Performance Tuner is a highly engineered piece of computer hardware and software that enhances engine performance to levels the stock programming is not allowed to venture into. It does this without negatively affecting your new car warranty coverage and without affecting long term reliability or the functionality of on-board diagnostic systems. It is also the only tuning device designed to be emissions legal in all 50 states. These items are unique to Dinan and together they embody the apex of performance engineering in a powerful, reliable, and warrantied package.
The Dinan Difference is possible by employing a full staff of talented engineers that are well rounded in many facets of automotive engineering and backed by a wealth of hands on knowledge. Stemming from diverse backgrounds not only on racing teams but on standard factory production line vehicles we have seen it all. Manipulating these signals with an adept hand all the while keeping an engine running at its best and with the most reliable power is what Dinan is all about.
Well Engineered
Plug-in tuning devices all have one thing in common, they send a modified signal to the factory ECU, telling it the boost pressure is below target values. This then causes the factory ECU to raise the boost pressure to what it thinks is the correct value. This modified boost pressure signal causes errors in fuel mixture and ignition timing. These errors can cause the on-board diagnostics systems to set faults, but they can also cause exceedingly high catalyst temperatures and a loss of power. In addition, when power is increased, exhaust gas temperature will increase as well and this must be countered with a slightly richer air/fuel mixture. The DINANTRONICS Performance Tuner has the capability to correct short term trim as well as ignition timing errors induced by raising boost pressure. This enables Dinan calibration engineers to optimize air/fuel mixture and ignition timing at elevated boost pressure throughout the entire gamut of engine RPM and engine load. Additionally, the ability to correct short term trim corrections (the difference between target and scheduled fuel mixture) remain within OEM specifications. This minimizes knock sensor activity, which in turn means smooth engine performance, catalyst protection and power increase, while this is also required to make the car emissions legal.
State-of-the-Art Hardware
The DINANTRONICS Performance Tuner is engineered using the best possible components and advanced hardware. The wiring harness uses OE connectors and expandable braided wiring sleeves ensuring that all visible components appear as if they come straight from the factory. More importantly however it guarantees long lasting and dependable performance due to the use of high heat, moisture and abrasion resistant materials and design. The other hardware element involved is the Dinan electronic control unit (ECU) itself. While its outward appearance may seem tame, the processing power and sophistication held within its internal circuitry is anything but. Capable of delivering signals to various systems at an astonishing 4000 times per second the DINANTRONICS Performance Tuner yields the power to control all current signals delivered to the ECU as well as those developed in the future without a hiccup in performance or reliability. This immense processing power equates to a high degree of engine control resulting in a much lower likelihood of setting a fault. In addition smoother running conditions and superior drivability are achieved, all of which are Dinan hallmarks.
Unmatched Warranty
Dinan's comprehensive warranty program, introduced in 1997, provides superior warranty coverage to that which you would find elsewhere. If your vehicle is currently covered by the vehicle manufacturer's new car limited warranty, Dinan products are warranted for the remaining term of the vehicle manufacturer's new car limited warranty. The manufacturer's new car warranty is limited to 4 years or 50,000 miles (80,000 kilometers in Canada), commencing on the date of first retail sale or the date the vehicle is first placed in-service as a demonstrator or company vehicle, whichever is earlier. Dinan's warranties are transferable when ownership of the vehicle into which the Dinan products were originally installed is sold. MINI automobiles can now be performance-tuned without the associated concern of negatively affecting the new car warranty coverage.
Designed to be 50 State Emissions Legal
The DINANTRONICS Performance Tuner was designed and built to be the only tuning box on the market that is emissions legal in all 50 states. CARB EO has been submitted and approval is pending.
Drivability
There is more to a tune than just cranking up the boost. Power needs to come on smoothly and in a predictable way to make the car as fun to drive at wide open throttle as cruising around town. It is your BMW, but reborn with new found acceleration and speed.
Installation
Installation takes under an hour and is available through our network of 300+ Dinan Dealers.
Easy To Use
Dinan's ECU is Bluetooth capable. While a smartphone app is currently being developed we have also included a physical bypass plug that can be used, should the need to arise, when you want to revert to stock without disconnecting the entire harness.
Designed for the Future
The DINANTRONICS Performance Tuner was engineered with future expansion of functionality in mind. Boasting the most powerful processing power on the market the DINANTRONICS Performance Tuner can handle more functions and processes than any of its contemporaries. To that end the Dinan performance tuner is capable of interfacing with much more should the need arise down the road. This means that when new functions are developed there will be no need for a new tuning module. Simply a short software update at your local Dinan dealer. Potentially a supplemental harness may be needed to take full advantage of more advanced future development.
Installation Instructions: DinanTronics D440-0055 Instructions
- Up to 12/2014 F56 JCW
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.7 ★★★★★
Based on 914 reviews
Sort
Product Reviews
★★★★★ 5
Heavy-Duty Solution for Large Towers — Rock Solid
This CPU holder is exactly what I needed to reclaim my desktop workspace. I wanted to get the computer off the desk to clear up room for projects, but I didn't want to put it on the floor where it’s susceptible to static and pet hair. This mount keeps the tower tucked away under the desk but still within easy reach.
Build Quality & Weight:
The unit is impressively well-built with sturdy steel. While the specs state it can hold up to 44 lbs, my current build is closer to 20 lbs, and it handles it with zero flex or wobble. It feels very secure once locked in.
Design & Airflow:
One of the best benefits I’ve noticed is the noise reduction. Having the case mounted under the desk surface helps shield the sound of the fans, creating a quieter workspace. The open-frame design is also great for airflow and keeps all the ports easily accessible. It’s highly adjustable (width 7.7” to 11.8” and height 20” to 25.8”), so it should fit almost any full-size case.
Installation Tip:
Installation was straightforward, though I’d recommend measuring your desk thickness first to ensure it can support the weight. If you’re looking for a solid, full-size PC holder to keep your system off the floor, this is a great choice. It feels like a professional-grade mount that will last through several different builds.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 7, 2026
★★★★★ 4
Great way to keep your PC off the floor, especially with a standing desk
This mount is a great solution if you want to get your desktop tower off the floor and clean up the space around your desk. The construction feels very solid and once installed it holds the PC securely without any wobble. I like that the frame is adjustable so it can fit different case sizes, and the open design allows for good airflow while still supporting the case well.
It is especially helpful if you have a standing desk. Keeping the tower mounted under the desk means all of the cables move with the desk when it raises or lowers, which makes everything much cleaner and easier to manage. Installation takes a little planning to line things up correctly, but once it is mounted it feels very secure. If you want a cleaner workspace and a better setup for a standing desk, this mount works really well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 14, 2026
★★★★★ 5
Built Like a Tank… Maybe Too Big
This thing is solid. The build quality is exactly what you want when you’re hanging a PC under a desk—sturdy steel, secure mounting, and plenty of adjustability to fit larger cases. It definitely does its job of getting your tower off the floor and out of the way.
That said, size matters here—and this is built for big cases. If your setup is more compact, it is overkill. Definitely measure before you commit, because while the adjustability is nice, it’s clearly designed with larger towers in mind.
Pros:
Very sturdy, confidence-inspiring build
Adjustable to fit a wide range of larger PC cases
Keeps PC off the floor (less dust, more space)
Can mount under desk or on wall
Cons:
Oversized for smaller or mid-sized builds
Requires careful measuring before install
Bulkier than some alternative mounts
Bottom Line:
A heavy-duty mount that does exactly what it promises—just make sure your PC actually needs something this big before you commit.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 5, 2026
★★★★★ 5
My god
Build Quality
The steel construction is very solid and feels durable enough to support a desktop tower or similar device. The powder-coated finish also helps protect against scratches.
Comfort / Ergonomics
Mounting a PC under the desk helps free up floor space and improves overall desk organization. It also keeps the computer elevated away from dust and improves airflow.
Features
The adjustable frame allows it to fit a variety of PC sizes, which makes it versatile. The mounting brackets feel strong and secure once installed.
Ease of Use / Installation
Installation requires basic tools but is fairly simple. Once mounted, the adjustable brackets make it easy to secure the computer in place.
Cleaning / Maintenance
Keeping the PC off the floor makes cleaning around your desk easier and helps reduce dust buildup in the computer itself.
Overall Impression
This mount is a great solution for anyone wanting a cleaner desk setup. It’s sturdy, adjustable, and keeps your computer safely mounted under the desk. Excellent for improving workspace organization.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 13, 2026
★★★★★ 5
Rock Solid and Computer / Wall Safe! Last PC Mount you'll ever need.
This is the hardware that you want in your office: robust, no-nonsense, and able to boss you around its workload. I installed a full size PC case/server in it, and it is rock solid once you lock it in. The open-frame design also merits a mention here as it greatly improves airflow and allows you to access ports on the motherboards and other hardware on your rig should you want to during your gaming sessions without bringing too much heat inside and causing headaches. The width of the holder can be adjusted (approximately 7.7” through 11.8”) in width and (approximately 20” through 25.8”) in height so it fits a large variety of towers, so you don't have to worry whether it could fit your set-up or not. Smaller towers may have substantially more wiggle room though.
The mount's weight limit is no joke—up to 44 lbs—so you're not sacrificing stability just to save a few bucks. The shells are quite secure, although some people may have wished for a little more tightening bite; they still prevent your equipment from falling off if you accidentally bump on a wall, which is more important than you may think.
A little nitpick: the lower wall-mount bracket could have a couple of extra pilot holes to reduce twisting over time. Not a breaker, just a heads-up for all of you who are looking to the long term. Altogether, it's a reliable, solid fix that is well worth the cost, particularly if you're cramming space and airflow in a tight configuration.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 27, 2025