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Stealth black compact 25mm twin piston atmospheric dump valve with adjustable spring preload. Direct replacement for factory standard 25mm fitment plastic valves that are notorious for failing on modern turbocharged cars. Twin piston valves are more suited to modern management systems as the twin piston design keeps the inlet closed at idle.

  • Twin piston operation
  • Atmospheric
  • Stealth black finish
  • Fully adjustable
  • Inlet size 25mm
  • 25mm blanking plug included

Stealth Compact / Adjustable Twin Piston Dump Valve (25mm)


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