MMR Severe Duty Exhaust Valves for 5.2 GT350 & GT500

These Ultra strong exhaust valves are designed for up to 11,000+ rpm and 4000hp. Perfect for Naturally aspirated Road Race vehicles or Turbocharged Pro Mods!No more dropped exhaust valves on performance applications! As used by Team MMR!


Plug and Play in 5.2 GT350 and 2020+ GT500 Cylinder heads

Single Bead Lock retainer groove

Factory Valve size

Undercut for improved flow over Factory valves -this means more power!

Bead Locks included Qty 16 Included

  • Model: 520600


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