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Dump Valves

A vast selection of recirculating, atmospheric and multi function dump valves. Using a high quality dump valve prolongs the life of your turbo and will help maintain precious boost pressure.

  • R-Spec Twin Piston Dump Valve (25mm)
    R-Spec Twin Piston Dump Valve (25mm)
    25mm Twin piston (Atmospheric) dump valve with 25mm blanking plug Twin piston (Vent to atmosphere) Highly polished finish 25mm Inlet size 25mm Blanking plug included 25mm Twin piston (Atmospheric) dump valve with 25mm blanking plug Twin piston (...
  • R-Spec "Type B" Twin Piston Dump Valve
    R-Spec "Type B" Twin Piston Dump Valve
    Type B 25mm Twin piston dump valve Twin Piston - Vent To Atmosphere Highly Polished 25mm Connection 25mm Blanking Plug Included Type B 25mm Twin piston dump valve Twin Piston - Vent To Atmosphere Highly Poli...
  • R-Spec Re-Circulating Dump Valve (25mm/25mm)
    R-Spec Re-Circulating Dump Valve (25mm/25mm)
    25mm x 25mm Recirculating (closed loop) dump valve. Direct replacement for factory standard 25mm fitment plastic valves that are notorious for failing on modern turbocharged cars. Re-Circulating Piston operation Highly polished Inlet size 25mm Outlet size 25mm 25mm x 25mm Recirculating (closed loop) dump valve. Direct replacement for fact...
  • Stealth Compact / Adjustable Single Piston Dump Valve (25mm)
    Stealth Compact / Adjustable Single Piston Dump Valve (25mm)
    Stealth black compact 25mm single piston atmospheric dump valve with adjustable spring preload. Direct replacement for factory standard 25mm fitment plastic valves that are notorious for failing on turbocharged cars. Single piston operation Atmospheric Stealth black finish Fully adjustable Inlet size 25mm 25mm blanking plug included Stealth black compact 25mm single piston atmospheric dump valve with adjus...
  • Stealth Compact / Adjustable Twin Piston Dump Valve (25mm)
    Stealth Compact / Adjustable Twin Piston Dump Valve (25mm)
    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... Stealth black compact 25mm twin piston atmospheric dump valve with adjustable s...
  • Stealth Compact / Adjustable Re-Circulating Dump Valve (25mm)
    Stealth Compact / Adjustable Re-Circulating Dump Valve (25mm)
    Stealth black compact 25mm x 25mm Recirculating (closed loop) dump valve with adjustable spring preload. Direct replacement for factory standard 25mm fitment plastic valves that are notorious for failing on modern turbocharged cars. Re-Circulating Piston operation Stealth black Fully adjustable Inlet size 25mm Outlet size 25mm Stealth black compact 25mm x 25mm Recirculating (closed loop) dump valve with a...
  • R-Spec Twin Piston Dump Valve (34mm)
    R-Spec Twin Piston Dump Valve (34mm)
    34mm Twin piston (Atmospheric) dump valve with 34mm blanking plug Twin piston (Vent to atmosphere) Highly polished finish 34mm Inlet size 34mm Blanking plug included 34mm Twin piston (Atmospheric) dump valve with 34mm blanking plug Twin piston (...
  • R-Spec Re-Circulating Dump Valve (34mm/34mm)
    R-Spec Re-Circulating Dump Valve (34mm/34mm)
    34mm x 34mm Recirculating (closed loop) dump valve. Direct replacement for factory standard 34mm fitment valves that are notorious for failing on some modern turbocharged cars. Re-Circulating Piston operation Highly polished Inlet size 34mm Outlet size 34mm 34mm x 34mm Recirculating (closed loop) dump valve. Direct replacement for fact...
  • 25mm Splitter Dual Port Dump Valve
    25mm Splitter Dual Port Dump Valve
    This compact & impressive splitter function (partial recirculating & partial atmospheric) aluminium dump valve not only looks fantastic but directly replaces the standard black plastic Bosch valves that are notorious for failing on the Saab turbo charged engines. This dual function dump valve is direct fitment for all cars running a factory standard 25mm plastic valve and is designed to... This compact & impressive splitter function (partial recirculating & pa...
  • Dual Port Piston Dump Valve
    Dual Port Piston Dump Valve
    With the huge air flow capacity of some turbochargers, this 34mm Dual Port Dump Valve delivers unsurpassed venting performance, excellent driveability and crisp turbocharger response in on/off throttle applications. Most Dump Valves have limitations in their design that inhibit the levels of performance. Piston/bore diameter and venting ports are often too small and surprisingly, most will not... With the huge air flow capacity of some turbochargers, this 34mm Dual Port Dump...
  • R-Spec 25mm Dump Valve Blanking Plug
    R-Spec 25mm Dump Valve Blanking Plug
    25mm Dump Valve Blanking Plug Aluminum finish 25mm 25mm Dump Valve Blanking Plug Aluminum finish 25mm ...
  • R-Spec 34mm Dump Valve Blanking Plug
    R-Spec 34mm Dump Valve Blanking Plug
    34mm Dump Valve Blanking Plug Aluminum finish 34mm 34mm Dump Valve Blanking Plug Aluminum finish 34mm ...