2011-2013 Infiniti M56 / Q70 Stainless Steel Cat-Back


2011-2013 Infiniti M56 / 2014-2018 Q70 Stainless Steel Near Cat-Back Exhaust System - 504456


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Product Features

  • Near Cat-Back Exhaust System
  • 304 Stainless Steel Construction
  • Polished Stainless Tips, End Pipes and Mufflers
  • Increase of Horsepower and Torque
  • Mild at Idle/Cruising - Aggressive Note Under Throttle
  • Limited Lifetime Warranty


STILLEN Near Cat-Back Exhaust for 2011-2013 Infiniti M56 / 2014-2018 Q70 [V51] - 504456



  • WHP Increase (horsepower to the wheels)
  • Gain Torque
  • Mild note at idle; Cruising- Aggressive note under throttle
  • Compliments the factory exhaust cut out nicely
  • Perfect solution for those who value a more luxurious and quiet cabin feel along with enhanced sound.
  • Delivers an aggressive look that matches the enhanced exhaust note.


The STILLEN exhausts for the Infiniti M35,M37,M45,M56 series are a great example of our R & D work. Choose from Cat-back and rear section exhaust systems. Each STILLEN Infiniti M Series exhaust systems is constructed of 100 percent mandrel bent tubing for optimal flow. T304 polished stainless steel is used in the Tips, End Pipes, and Muffler for long life and a sharp look. The straight through Mufflers are wrapped in exclusive Italian Granite Wool for durability and responsible sound levels.