A'PEXi Active Tail Silencer for GT Spec and N1 Turbo Exhausts 115mm (155-A025)



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Active Tail Silencer for GT Spec and N1 Turbo Exhausts 115mm by Apexi

Current tail silencers are a restriction for power under high load and the user sacrifices power for quieter sound.

The ATS allows for quiet sound during low load, but under high load, the pressure activated valve opens wide up for straight through power!!

The ATS eliminates the need to constantly install or remove the tail silencer.

The ATS (Active Tail Silencer) comes in 115mm and 90mm sizes for most exhaust system applications.

No need to change exhaust systems! Any A'PEX muffler can become a variable sound system!


  • Exhaust pressure activated tail silencer valve
  • Exclusive tail silencer design
  • Uses High Grade Ball Plunger Type Valve and Treatment Pipe as the PS Revolution Exhaust
  • Uses High Grade Inconel Spring
  • Maximum sound flexibility from residential areas to the local track
  • Includes high temp bolts, washers, and locking pin


  • Diameter (O.D.): 109.8mm. (4.32 inches)
  • SIlencer Body Length: 87mm. (3.43 inches)
  • Silencer Inlet Length: 93mm. (3.66 inches)
  • Overall Length: 180mm. (7.10 inches)


  • Universal

What's In The Box?

  • Active Tail Silencer

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