Has anyone else been trying to give there XT4 a little extra Oompff this year?
My guess is more power equals better mph. The wife’s XT5 averages about 2mpg better than my 4. On the highway at 80 the 5 got 29 on a trip. At 80 in the 4 26 was the best and in a headwind it droops about 5mpg less the XT5 isn’t noticeable.I can understand the increase in performance but please explain how you achieve the 2-3 MPG improvements at the same time.
This post from 21 days ago answers those questions. Again, if you want more specific details or have different questions you can email us or PM on here directly.Definitely! What we have is not a flash tune, but a Boost Controller which is still plug and play. Its not adjustable by the end user, since we developed it to work in parallel with the factory computer but its design allowed us to get an extra 35 WHP, 50 LBFT of TQ, and 2-3 MPG improvements. They retail for $795. We weren't able to Dyno the XT4 yet, due to the hot Arizona summers. But from sprint data, we were able to see better throttle response, like way more boost bottom and mid end, plus an increase of 240HP crank to around 275HP. The numbers were nice, but for us it was all about drivability and with no one else in the market with the tech, we thought after testing with several Cadillac dealers around the world it was time to bring it to the consumer market. If you have any more questions, comments, or want to place an order you can reach us at 1-866-473-8863 or [email protected]!