BMW E39 M5
A customers beautiful M5 we built a custom trunk mount fuel cell system for.
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2012 CTS-V
Aquamist gauge mounted in place of the analog clock in the center console
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Ford Focus RS
Customer car from Australia. 5 cylinders and 382hp make for a wild ride in this unbelievable machine.
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E39 System #2
Closeup of the aircraft cap and gauge used in E39 Tank #2
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400HP FWD
A good setup and Aquamist methanol system equals a 1:58 Buttonwillow time.
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2012 CTS-V
A pulley change and HFS-4 nets this Caddy 625whp
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Category: Audi

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HFS-4 Release


The HFS-4 is officially here.   We have preliminary product information, and this kit is hot.  Many of the improvements are of a big benefit to both regular and Direct Injection applications.   The main changes are new inputs and tuning functions to tailor the injection to the application, whatever in may be.

New HFS-4 Info

Audi A4 B5


We recently had a call from a customer to install a system on his 99 Audi Wagon.  The customer was concerned about having a tank in the car, so it was decided a fuel cell would be appropriate for the use of the car and system.  So the car was dropped off and the install of an HFS-2 and fuel cell system began.  We discovered that most of the rear floor of the truck has the fuel tank under it, so drilling a number of holes for mounting the tank wasn’t the best idea, and there wasn’t time to remove everything to get the fuel tank dropped.  Therefore a aluminum brace that stretches across the car bolting to two anchor points was fabricated to hold the cell in the rear.  Below you will find a few pictures, with many more in the Audi section of the  Image Gallery.  The install turned out pretty well with the HFS-2 button in the switch panel of the dash.

loading Audi A4 B5