Built-In Wifi For Easy Updates:
Built-in WIFI connectivity attaches to your local wireless network for easy device updates.
Full Color LCD Display:
Full color LCD screen with auto dim feature and user adjustable portrait/landscape modes.
Holds 10 Custom Tunes:
Holds up to 10 custom tune files for maximum on-device tune selection
Logging & Monitoring:
Monitor your vehicle's PCM data live in real-time on screen or using SCT's LiveLink Data Loggin Software.
Styled after our popular X3 programmer, the new X4 is smaller and more compact. (2.75" wide x 5.5" high)
- Full Color LCD Screen
- Smaller, Compact Design
- Logging & Monitoring Capabilities
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This tuner replaced an old bullydog PMT system that was put in when the truck was bought new (2006) and at first I was a skeptic of custom tuning as I've only ever known the junk on the unit. Immediately after loading the ECOBEAST tune and going for a low speed drive around the neighborhood I could tell a difference in response, no smoking on takeoff, and most notably shifting. The transmission is now firm shifting and fast, not laggy and limp shifting anymore. (Doesn't feel extreme) just similar to an old shift kit. The EGT's have also gone down considerably just cruising with no load, haven't loaded other tunes or towed yet. I used to pull 800-900 egt on a hill to work and now its pretty steady 650-750 depending on how heavy my foot is. When you lay into the throttle this tune absolutely smokes the extreme tune that was loaded with the bullydog, and its not smoking like a freight train while doing it. The way I drive (pretty lightfooted) I've noticed on the mileage computer at least 2.5 mpg gain, but not filled up since and was about 3/4 tank when tune loaded, so wont really know until after a fresh fill. I am overall extremely satisfied with the tune, and sure to be happy with the performance and tow tune that wete also thrown in. The x4 works, but the tuning is top notch and makes it well worth the while.