Awesome facility and friendly service. The guys at underground are knowledgeable and experienced. They are very courteous and honest...found an issue and they called me in to show me. I really appreciated that honesty especially with so many horror...
Read more...Modern Hemi Packages

Underground Autosports likes to make modding your MODERN HEMI's as easy as possible, so that is why we built these packages. We know that these Mopars have a lot of potential. One of the first steps to releasing this is Tuning. We have an in house dyno and an experienced tuner that has owned 2 modern mopars himself. Both in which were turbo Jeep SRT8s. So there is no job too big or too small that we can't tackle. RT - SRT - SRT8 - SRT10
Modern 5.7 and 6.1 Hemi Packages
HEMI Basic Bolt on Dyno TuneHEMI 125 Zex nitrous kit Install and TuneHEMI Procharger packagesHEMI Turbo Packages |
$600$2,250$7,950Call for price |
Modern 6.4 Hemi Packages
HEMI Basic Bolt on Dyno TuneHEMI 125 Zex nitrous kit Install and TuneHEMI Procharger package (install and tune)HEMI Turbo Packages |
$600$2,500$8,150Call for price |