Tial Blow off Valve w/ IPR Flange Subaru WRX 2002-2007 / STI 2004-2017




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The body and all internal components are CNC-machined from 6061 aluminum alloy. It features a large 1.98 in (50.5mm) valve; we believe this is the largest valve available with the highest flow capacity. The V-Band design aluminum mounting clamp gives a very clean and unique appearance. The clamp is anodized and uses Stainless Steel hardware for a long lasting, corrosion-free appearance. The valve seal utilizes a Viton O-ring that is clamped in place to prevent the possibility of sticking to the seat and pulling out. The valve stem and guide are Teflon-lubricated, hard anodize-coated for wear resistance.

IRP is now offering their one of a kind custom billet top mount intercooler flange for use with the 50mm Tial BOV. Avoid welding and cut the install time in half with IRP's new mounting flange.Made out of high strength and fatigue resistant Aluminum 2024. All you need is this Flange kit for use with the stock location top mount intercooler for your Subaru.

  • Tial QR Blow Off Valve or Tial Q Blow Off Valve
  • Import Performance Research Billet Aluminum Flange Adapter
All IRP are manufactured in the USA.

Fitments: 02-07 WRX w/ TMIC, 02-10 STi w/ TMIC


2 customers have reviewed this product.

Great bov

, Sep 28, 2011
The Tial BOV is awesome. Looks great, clean welds, mounts to the flange perfect.


, Sep 2, 2011
great construction, great sound, and just looks great! 08 sti lovin it! TiAL has an amazing product line.

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You're reviewing: Tial Blow off Valve w/ IPR Flange Subaru WRX 2002-2007 / STI 2004-2017