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Polaris® Defense military vehicles dropped out of military aircraft featuring the MRZR™, SPORTSMAN® MV850, and RZR®-SW Polaris® Defense MRZR™ ultra-light tactical vehicles. Designed and engineered...

UTVUnderground.com in partnership with RJ Anderson, Mad Media, and RZR are pleased to announce XP1K! After 7 months of careful planning and building 2 of...

Follow RJ & Ronnie Anderson and the RJ37 Off-Road Team as they adventure south of the border for the Lucas Oil Off-Road Racing Series...

https://youtu.be/dB1QcZ1_KXI Dynamic Racing has been making a name for themselves in off-road racing. Team owner Paul Kraus brought their two car effort led by driver...

In this Vehicle Breakdown, UTVUnderground travels to Glamis Dunes in Southern California with off-road racing champion and factory Polaris racer RJ Anderson to breakdown...

  UTVUnderground.com heads to Moab, UT to shakedown the new 2012 John Deere RSX850i UTV.  This is the first of many "shakedown" videos that UTVUnderground...

The 2015 SCORE Baja 1000 was everything you would expect from the toughest off-road race in the world! The 800+ mile course was harsh,...

Yamaha 2019 YXZ1000R – Most Versatile Pure Sport Side-by-Side Yamaha GYTR Turbo Kit Available for YXZ Platforms KENNESAW, Ga. – June 6, 2018 – Yamaha Motor...

UTVUnderground.com headed to Montana with Polaris to SHAKEDOWN the all new 2017 Polaris General 4 1000! This new machine not only performed, it impressed! Be...

Professional Driver. One-Of-A-Kind Heavily Modified Vehicle. Do Not Attempt. You Could Die. RJ Anderson is constantly driving on the edge of consequence in the...