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Wastegate Precision 40mm PW40 (V-band)
KORacing Products » Mazda Miata » Turbocharging & Accessories
Gen 2 Design Nov 2019
Precision Turbo and Engine’s high-quality yet economical PW40 40mm external wastegate is perfect for the automotive enthusiast looking to get the most from their turbocharged car, truck or any other vehicle. With over 60 years of combined turbocharger development and racing experience, we at Precision Turbo take great pride in providing you with the best external wastegate on the market today. The PW40 is made from high grade, high temperature stainless steel and billet aluminum components. It features Precision Turbo's own purpose designed Kevlar reinforced wastegate diaphragm and a 347 stainless investment cast valve body. Our investment cast valve body has a smooth internal surface, giving you better flow and more accurate boost control. Our PW40 was designed to be a direct replacement for other existing v-band 40mm wastegate flanges. The PW40 features a Nickel Chromium Alloy valve and 5 different 17-7 precipitation hardened springs. Also included are stainless steel inlet and outlet flanges. With a satin black anodized, 6061 aluminum billet wastegate cap you will have years of good looks and protection from the elements. The PW40 is generally compatible with most aftermarket manual and electronic boost controllers on the market today.

PW40 External Wastegate Features:

  • V-Band Inlet/Outlet wastegate is constructed from high grade, high temperature stainless steel and billet aluminum components for the best in strength, style and functionality at an affordable price
  • A 347 stainless investment cast valve body to provide consistent performance without fatigue or failure while also allowing for accurate boost control
  • An internal Nickel Chromium Alloy valve
  • 5 different 17-7 precipitation hardened springs for further adjustment of boost levels
  • Standard bolt-style flange configuration for easy mounting
  • A satin black anodized finish with 6061 aluminum billet cap
  • All clamps necessary for installation

    Includes:

  • PW40 wastegate
  • Inlet and outlet flanges
  • inlet and outlet clamps
  • 3/16" hose barb adapter fittings (qty. 2)
  • Plug fittings for unused air ports (qty. 2)
  • SPecial spanner wrench for opening and closing wastegate top
  • Full selection of springs Note: As of November 2019, the PW40 wastegate started shipping as a new design "Gen 2" versions that are more compact than the original with a lower profile top-hat.
    $325.00 each
    Select Mounting compatibility:
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