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Digital Horsepower, Inc, was formed in 2001, by a group of automotive enthusiasts, with the goal to be the foremost authority in GM V6 and V8 engine performance tuning. With this goal in mind, DHP has especially focused in on the popular GM 3800 Series II engine and through hardwork, they have established themselves as the premier PCM supplier for the 3800 platform!

DHP currently powers 9 of the top 10 fastest L67 engines, listed on clubgp.com, including the current fastest L67 at 10.674@129.35! DHP’s staff has over 20 years of combined tuning experience which dates all the way back to the venerable Buick Grand National! DHP does all of its tuning and calibration in house, which allows you the best possible service. Be wary of other sources who claim to do their own tuning while in essence they actually farm out their work to 3rd parties. Cut out the middleman!

In addition to our tuning experience, our team of developers assures the quickest turn around and support possible. While other PCM sites may seem to be legit on the surface, apperances are not everything. Anyone can re-sell a product, but getting timely sales, shipping, custom programming, and support are very important as well!

Why Choose Us?

  • We’re in business because we love cars
  • While we have diverse backgrounds (hardware engineering, software development), we all have hands on experience working with vehicles which gives us insight into what the major pain points are and how to address them
  • We are committed to reinvesting into our business to ensure our products continue to meet consumer needs
  • We are committed to superior customer service and have people, processes, and technology in place to deliver

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