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

Marsoni M251S
Sale price$129.50
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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 Blue Housing QBOV-Blue-11psi-ALThis listing is for the BLUE 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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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
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4.8 ★★★★★
Based on 2129 reviews
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Ian H
Fort Morgan, US
★★★★★ 3
Check engine light
Style: Gloss Black Single Slat, Size: G20(2019-2022), Style: Gloss Black Single Slat, Size: G20(2019-2022)
Looks good but will throw a check engine light on your car. The fitment isn’t perfect causing the adaptive vents to show that they are failing even though they are not
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 7, 2026
W
Verified Purchase
Works great and a better price than others. Works well in the 16” oven.
Massapequa, US
★★★★★ 5
Quick fix
Style: Gloss Black Single Slat, Size: E46(2002-2005)4-Door
Easily Installed with no modification in under a minute. The finish was a little glossier, then OE.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 28, 2026
C
Verified Purchase
Carlos M. Ortiz
Pawtucket, US
★★★★★ 5
Exact Fit for 2001 BMW 325CI Convertible
Style: Gloss Black Single Slat, Size: E46(1999-2002)2-Door, Style: Gloss Black Single Slat, Size: E46(1999-2002)2-Door
Perfect fit for a 2001 BMW 325CI convertible.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 8, 2026
K
Verified Purchase
keith jones
Battle Creek, US
★★★★★ 5
Perfect fit
Perfect fit no issues it came sooner then expected and it looks great
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Reviewed in the United States on May 19, 2025
R
Verified Purchase
Ralph
Dallas, US
★★★★★ 3
Won't lock in.
Looks nice but tabs won't lock in to existing grill mounts no matter how hard you try. 2012 BMW 650i
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Reviewed in the United States on July 30, 2025

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