I bought the truck for its towing ability to pull our travel trailer. What I did not expect though was the throttle lag and sluggish downshifting when I wanted a sudden burst of power for passing. Bill's towing tune on the Gryphon has changed all that. Now I have quick throttle response and crisp, sure shifting that makes passing, even while pulling a trailer, a breeze. It's like I have a new truck at virtually no cost.

Additionally, since I can now monitor powertrain parameters like Transmission Fluid Temperature and Cylinder Head Temperature, I've gained peace of mind from knowing the level of stress I'm putting on the vehicle, especially when towing over high mountain passes.

They have been absolutely superb in the area of customer support. They are easy to reach and they clearly have the satisfaction of their customers as their first priority. Bottom line: A first class product from a business with integrity! Power Hungry Performance is a winner!

2005 F-150 5.4L
Upgrade and Custom Calibrations

I just received my custom tunes and new Pegasus software for the Gryphon. I am extremely pleased with performance gains and mpg I am getting with my new tunes. Also, big thanks for the awesome customer support I received from the staff at PHP. They are really class act people! A Big Thumbs Up!

2004 F-150 5.4L
Custom Calibrations

I want to thank you for your assistance in removing the speed limiter from my truck. I had almost given up until I met you guys on the forums and started talking to you by phone. You guys were able to figure out why my programmer would not remove my speed limiter and sent me the updated firmware that removed the limiter.

Out of all the customer service people I have dealt with you guys were the best and most polite of all. I will recommend you to anyone that... wants their programmer custom tuned.

Again, I want to thank you and tell you to keep up the Amazing Work.

1997 Ford F-150 4.6L
Custom Calibrations

I just wanted to thank you for the tunes! It drives like a different truck now! 87 Perf. is great and I can't wait to try the 93 Performance Tune!

2005 F-150 4.6L
Gryphon Programmer and Custom Calibrations