2019 Chevy Silverado Legacy and Sierra Limited Now Supported

2019 Chevy Silverado Legacy and Sierra Limited Now Supported

We’re stoked to have first to market coverage for the 2019 Silverado Legacy and Sierra Limited 5.3L.  Having the latest vehicle application coverage is something that DiabloSport pride’s itself on.  The inTune 3 and Trinity 2 tuners now support the 2019 5.3L powered offerings from GM with up to 16 Horsepower and 20 LB-FT of Torque to the tires.  We made sure our products feature the options you expect from DiabloSport like tire size, gear ratio, active fuel management options, speed/rev limiter, cooling fan control and more.  Act now to get your truck running DiabloSport Tuned with Power You Can Feel.

On top of having the latest coverage, the inTune i3 and Trinity 2 also have a Cash-Back Rebate promotion live now!  Get $40 cash-back on any inTune i3 purchase or $60 cash-back on any Trinity 2 purchase.  Performance, features, value and a smile when you drive are all a tune away.

Silverado/Sierra 5.3L Legacy/Limited Performance Tunes:

  • Diablo Tune – 91+ Octane – 16HP/20TQ
  • 87 Octane – 8HP/10TQ
  • MPG Booster – 8HP/10TQ


Options and Features:

  • Adjustable Gear and Tire Size
  • Cooling Fan Control
  • DOD/AFM Disable
  • Timing Advance/Retard vs RPM
  • Throttle Boost
  • Wide Open Throttle (WOT) Fuel Control
  • Adjustable Drive/Neutral Idle RPM
  • Adjustable Rev Limiter
  • Speed Limiter Control
  • Skip Shift (CAGS) On/Off

silverado legacy sierra limited performance tuning now support