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HMMWV Turbo Kit

Commander™ HMMWV Turbo Kit /s
Finally… A proven bolt-on turbo kit for naturally aspirated HMMWV’s!
(Currently in testing...Set for Release in November 2020)
Call or send us a message to reserve your kit from the initial November 2020 production run. We currently have reservations for 70% of the planned initial production, if we know more about the demand we may be able to expand the November production
  • 50-60 Horsepower Increase
  • 100-120 ft/lb Torque Increase
  • Virtually no effect on fuel economy (under normal driving conditions)
  • Rugged and proven all mechanical turbo design with self-contained wastegate control
  • No body lift / cutting or modification of the body or frame necessary, also retains original “doghouse” without any alteration.
  • New high-flow cold-air intake system utilizes the original HMMWV (exterior) air-intake stack
  • EGT and boost gauges included with kit
  • Kits include all necessary hardware and fully illustrated installation instructions
  • There is no other kit on the market like this……

In late 2015, when the US Military decided to switch from the HMMWV in favor of the new front line military vehicle (the Oshkosh built JLTV) Banks abandoned their prototype “Hod Rod Humvee” project, leaving the military and civilian owners with (still) no way to upgrade their non-turbo HMMWV’s to the power of a turbo. Now that the Banks Hummer turbo kit is not to be, BMI has invested the R&D to develop a kit of our own. These kits are simplistic, yet effective in their function, utilizing purpose-designed proprietary parts to achieve a straightforward install with minimal modifications to the factory set-up. If your HMMWV has an aftermarket Red Dot A/C system installed, this kit will require moving the compressor. We are working on new brackets for the A/C compressor to make this modification a simple bolt-on affair.

Keeping with the military theme of rugged simplicity, the kits employ all-mechanical controls, with NO ELECTRONICS.

With many non-turbo (M998 M1035 M1037 M1038 &M1114) HMMWV trucks being auctioned off to the public, civilian demand is growing for a proven H1 turbo kit to upgrade these venerable (but underpowered) Hummer warriors.

Now, BMI is set to introduce the H-1 turbo kits that so many H-1 owners have been asking for.

There will be two turbo kits available to upgrade most any 6.2 or 6.5 Liter M998 M1035 M1037 M1038 & M1114 H-1 HMMWV (Humvee):

BMI Commander 6200 Turbo Kit (part# 6200TK1) $TBA ($3995-4595) – for 6.2L equipped trucks

BMI Commander 6500 Turbo Kit (part#6500TK1) $TBA ($3995-4595) – for 6.5L equipped trucks


  • BMI’s 6.2L Turbo Kit Test Truck


  • BMI’s 6.5L Turbo Kit Test Truck

Below are the cumulative updates on the HMMWV turbo upgrade/retrofit kit. We are posting these updates on the website to keep everyone (including the many who have expressed interest) up to date on progress of the kit, and to assure every one of our continued dedication in bringing this project to fruition. We are working diligently to develop a durable, powerful and easy to install turbo kit for the Military spec HMMWV.

Performance, Longevity & Durability are the primary focus/s of this kit.

Thursday, October 31, 2019 - Update
6.2 & 6.5 Diesel HMMWV Turbo Upgrade Kit - BMI: November Update

We are (finally) very close to the final design of the most difficult component for this kit,… the exhaust manifold. This manifold will be at the heart of this system and the main piece that makes the rest of the kit possible. The manifold will be made of high quality cast iron.
Over the last couple months, we have made many changes to improve the exhaust manifold design:

  • Increasing gas flow velocity to the turbo by modifying the shape of the manifold “log” and contributing port runners
  • Strengthening the casting to support the heavy turbo during rough and jarring off-road use
  • Verify & maximize clearance of manifold and related components to various other under-hood components
  • Rugged and proven all mechanical turbo design with self-contained wastegate control
  • Build-in tolerances to accommodate for gasket inconsistencies allowing proper sealing on all mating surfaces
  • Re-shaping the manifold so it puts the turbo at the optimum position within engine compartment

10/31/2019 Current status: finalization of exhaust manifold design, patent application and beginning development of components that connects to the turbo.

*P.S. I wonder how many HMMWV owners realize that the engine in their HMMWV is actually mounted at a noticeable angle within the engine compartment? The front engine mounts are pushed over to the passenger side to allow clearance of accessory components to the body and for the steering box to be located on the inside of the frame rail.

While the front mounts are offset, the transmission mount is (mostly) centered between the frame rails, so that makes the engine “crooked” in the engine compartment.

It is amazing how a minor angle like that can complicate engineering things to bolt-on to this application!

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Monday, February 17, 2020 - Update
6.2 & 6.5 Diesel HMMWV Turbo Retrofit Kit - BMI: February 2020 Update

Below is the February 2020 update on the HMMWV turbo upgrade/retrofit kit. I am sending this message to keep everyone (who has expressed interest) up to date on progress of the kit, and to assure every one of our continued dedication in bringing this project to fruition.

We are working diligently to develop a durable, powerful and easy to install turbo kit for the Military spec HMMWV. Performance, Longevity & Durability are the primary focus/s of this kit.

The prototype exhaust manifolds arrived late last week and have been trial-fitted to the truck. The fit was very good this time and it looks like we are ready to give the go-ahead on manifold production this week. Patent applications have now been submitted for this unique manifold that we have so much engineering time and money into getting right.

We are working with local fabricators and CNC tube benders on 6 other supporting parts to get the turbo to properly mate to the engine.

The air intake / filter housing setup is going to be really great on this kit with a built-in cold air intake utilizing the OEM HMMWV air stack for air intake. A re-usable K&N style air filter will be utilized in an enclosed aluminum box to protect it from dirt/mud, mated directly to the water separator portion of the air intake stack on the body of the HMMWV.

We will be getting the test truck on a lift to get the exhaust parts prototyped in the next couple weeks.
We really want to get this project finished this spring and I am pushing everyone to that end.

Thank You for your patience while we build a world-class turbo kit for your Military HMMWV!

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Monday, April 20, 2020 - Update
6.2 & 6.5 Diesel HMMWV Turbo Upgrade Kit - BMI: April Update

We continue to work on the turbo kit development even though the whole world seems to be on lockdown….

Here is a picture from this morning as I welded up a prototype for the intake plenum tube to the turbo…

This was just for fitment verification before we finalize the engineering drawings for production on that part. The finished product will look allot better!

I think 2-3 more months and we will have a finished product to be proud of, that is… if I can get some dyno time soon….

Hang in there… when the world open back up we will be ready to give more power to your HMMWV!

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Wednesday, August 20, 2020 - Update
6.2 & 6.5 Diesel HMMWV Turbo Upgrade Kit - BMI: August Update

Well, we were aiming for a late July 2020 release,… but COVID had other plans,… most of our fabricator shops shut down in July and the dyno we use was also closed, so we were forced into a 5 week break from the project. It’s mid-August now and 2 of our fabricator shops are re-opened as well as the dyno. We are set to start hot-run testing on the dyno in the next couple weeks.

The intake plenum prototype has been completed and now we are just waiting on the exhaust pipe prototypes to be finished and sent to us for test fitting.

Once the exhaust parts arrive, we will make the initial injection pump adjustments and get the first test truck (a 6.2 powered M998) on the dyno to see where we are at with power and EGT's, then we can turn up the pump until it reaches its power potential (without over-fueling).

Can’t wait to fire it up for the first time!