Cummins Engines

Welcome to Tennessee Tuned your Duramax and Cummins diesel tuning specialist.

Ask about our military, first responder, CDL and shop discounts.

We Will Be Closed 9/25/24-10/02/24!

Custom EFI Live Tune 6.7 CMC Cummins 2007.5-2009

Custom EFI Live Tune 6.7 CMC Cummins 2007.5-2009

Regular price From $300.00 USD

Regular price Sale price From $300.00 USD
Unit price per
Custom EFI Live Tune 6.7 CMD Cummins 2010-2012

Custom EFI Live Tune 6.7 CMD Cummins 2010-2012

Regular price From $300.00 USD

Regular price Sale price From $300.00 USD
Unit price per
Custom EFI Live Tune 6.7 CME Cummins 2013-2018

Custom EFI Live Tune 6.7 CME Cummins 2013-2018

Regular price From $300.00 USD

Regular price Sale price From $300.00 USD
Unit price per
Custom EFI Live Tune 6.7 CMF Cummins 2019-2021

Custom EFI Live Tune 6.7 CMF Cummins 2019-2021

Regular price From $300.00 USD

Regular price Sale price From $300.00 USD
Unit price per