Tial Q BOV 50mm Blow Off Valve with Aluminum Flange, 11psi Spring, and Red Housing QBOV-Red-11psi-AL

Tial Q BOV 50mm Blow Off Valve with Aluminum Flange, 11psi Spring, and Red Housing QBOV-Red-11psi-AL

Marsoni

M251S

$129.50

Get it in 3 business days with 1 day shipping. Friday, May 29

Tial Q BOV 50mm Blow Off Valve with Aluminum Flange, 11psi Spring, and Red Housing QBOV-Red-11psi-ALThis listing is for the RED housing. Q is the first revision of the original TiAL BOV. The Q bolts up to any standard TiAL flange, no re welding. This is the highest flowing BOV on the market. It's offered with a variety of springs for different vacuum levels and a special spring specifically for supercharged vehicles Features For use on turbo charged and super charged applications (Paxton, Vortec, etc.). The body and all internal components are CNC

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Reviewed in the United States on February 17, 2026