{"product_id":"hpi-40mm-open-style-race-bov-blow-off-valve-billet-aluminum-hpi","title":"HPI 40MM Open Style Race BOV Blow Off Valve – Billet Aluminum | HPI","description":"\u003cstyle\u003e\n.hpi-product{--hpi-red:#b10000;--hpi-gold:#f3b502;box-sizing:border-box;width:100%;margin:24px auto;color:#222;font-family:inherit;font-size:16px;line-height:1.7;overflow-wrap:anywhere}\n.hpi-product *{box-sizing:border-box}\n.hpi-product .hpi-hero{padding:32px;background:#151515;border-top:5px solid var(--hpi-red);border-bottom:3px solid var(--hpi-gold);border-radius:12px;color:#fff}\n.hpi-product .hpi-eyebrow{color:var(--hpi-gold);font-size:12px;font-weight:800;letter-spacing:1.5px;text-transform:uppercase;margin-bottom:12px}\n.hpi-product h2{font-size:clamp(24px,3vw,36px);line-height:1.2;margin:0 0 16px;font-weight:800;color:inherit}\n.hpi-product .hpi-highlight{color:var(--hpi-gold)}\n.hpi-product p{margin:0 0 16px;color:inherit}\n.hpi-product p:last-child{margin-bottom:0}\n.hpi-product .hpi-section{padding:28px 0;border-bottom:1px solid #e5e5e5}\n.hpi-product h3{font-size:24px;line-height:1.3;margin:0 0 18px;color:var(--hpi-red);font-weight:800}\n.hpi-product h4{font-size:18px;line-height:1.4;margin:0 0 10px;color:#171717;font-weight:800}\n.hpi-product .hpi-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}\n.hpi-product .hpi-card{padding:22px;background:#f7f7f7;border:1px solid #e5e5e5;border-top:4px solid var(--hpi-red);border-radius:10px}\n.hpi-product .hpi-fitment{padding:22px;background:#fafafa;border:1px solid #e5e5e5;border-radius:10px}\n.hpi-product .hpi-list{padding-left:24px;margin:0;list-style:disc}\n.hpi-product .hpi-list li{padding-left:4px;margin-bottom:10px}\n.hpi-product .hpi-list li::marker{color:var(--hpi-red)}\n.hpi-product .hpi-note{margin-top:20px;padding:16px;background:#fff7de;border-left:4px solid var(--hpi-gold);color:#292929}\n.hpi-product .hpi-faq-item{padding:18px 0;border-bottom:1px solid #e5e5e5}\n.hpi-product .hpi-faq-item:last-child{border-bottom:0;padding-bottom:0}\n.hpi-product .hpi-cta{margin-top:28px;padding:28px;background:#151515;border-left:5px solid var(--hpi-red);border-radius:10px;color:#fff}\n.hpi-product .hpi-cta h3{color:var(--hpi-gold)}\n.hpi-product .hpi-order-note{font-weight:700}\n@media(max-width:640px){.hpi-product .hpi-grid{grid-template-columns:1fr}.hpi-product .hpi-hero,.hpi-product .hpi-cta{padding:22px}.hpi-product .hpi-card,.hpi-product .hpi-fitment{padding:18px}.hpi-product h3{font-size:22px}.hpi-product .hpi-section{padding:24px 0}}\n.hpi-product a{color:#b10000;text-decoration:underline;text-underline-offset:3px}.hpi-product img{max-width:100%;height:auto}.hpi-product .hpi-cta a{color:#f3b502}.hpi-product .hpi-button-static{margin-top:18px;font-weight:700}.hpi-product a:focus-visible{outline:3px solid #f3b502;outline-offset:3px}\n\u003c\/style\u003e\n\u003cdiv class=\"hpi-product-page\"\u003e\n\n  \u003csection class=\"hpi-hero\"\u003e\n    \u003ch1\u003eHPI 40MM Open Style Race BOV Blow Off Valve\u003c\/h1\u003e\n    \u003cp\u003e\n      Compact size. Big boost control. The HPI 40MM open style race blow off valve is built from precision 6061 billet aluminum for boosted builds that need fast pressure release, clean fitment, and race-ready durability.\n    \u003c\/p\u003e\n    \u003ca href=\"#AddToCart\" class=\"hpi-btn\"\u003eBuy Now\u003c\/a\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"hpi-container\"\u003e\n\n    \u003ch2 class=\"hpi-section-title\"\u003e\n      Built For \u003cspan class=\"hpi-highlight\"\u003eTight Engine Bays \u0026amp; Serious Boost\u003c\/span\u003e\n    \u003c\/h2\u003e\n\n    \u003cp\u003e\n      The HPI 40MM open style race BOV is the smaller blow off valve option for builders who need performance without fighting space. It is designed for tight, compact engine compartments while still flowing the air needed when boost pressure needs to escape fast.\n    \u003c\/p\u003e\n\n    \u003cp\u003e\n      This HPI blow off valve is made from precision 6061 billet aluminum and finished in black anodizing for added durability. It uses the same style flange kit as the ProCharger Big Red race valve, with similar race-valve specs in a smaller package built for tight engine bays. The product listing rates it for 300 to 1200 horsepower. :contentReference[oaicite:0]{index=0}\n    \u003c\/p\u003e\n\n    \u003cdiv class=\"hpi-grid\"\u003e\n\n      \u003cdiv class=\"hpi-card\"\u003e\n        \u003ch3\u003e40MM Compact Race Design\u003c\/h3\u003e\n        \u003cp\u003e\n          Smaller than the 60MM Big Red style valve, making it ideal for tight boosted engine bays where space is limited.\n        \u003c\/p\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"hpi-card\"\u003e\n        \u003ch3\u003e6061 Billet Aluminum\u003c\/h3\u003e\n        \u003cp\u003e\n          Precision-machined billet aluminum construction gives this BOV strength, durability, and a clean performance finish.\n        \u003c\/p\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"hpi-card\"\u003e\n        \u003ch3\u003e300–1200 HP Rated\u003c\/h3\u003e\n        \u003cp\u003e\n          Built for serious boosted applications and rated for performance builds from 300 to 1200 horsepower.\n        \u003c\/p\u003e\n      \u003c\/div\u003e\n\n    \u003c\/div\u003e\n\n    \u003ch2 class=\"hpi-section-title\"\u003e\n      Key Product Features\n    \u003c\/h2\u003e\n\n    \u003cul class=\"hpi-list\"\u003e\n      \u003cli\u003eHPI 40MM open style race blow off valve\u003c\/li\u003e\n      \u003cli\u003eDesigned for turbocharged and supercharged performance applications\u003c\/li\u003e\n      \u003cli\u003ePrecision 6061 billet aluminum construction\u003c\/li\u003e\n      \u003cli\u003eBlack anodized finish for increased durability\u003c\/li\u003e\n      \u003cli\u003eCompact size for tight engine compartments\u003c\/li\u003e\n      \u003cli\u003eUses same style flange kit as ProCharger Big Red race valve\u003c\/li\u003e\n      \u003cli\u003eSmaller alternative to the 60MM Big Red style valve\u003c\/li\u003e\n      \u003cli\u003eRated for 300 to 1200 horsepower\u003c\/li\u003e\n    \u003c\/ul\u003e\n\n    \u003ch2 class=\"hpi-section-title\" style=\"margin-top:60px;\"\u003e\n      Why Your Boosted Build Needs The Right BOV\n    \u003c\/h2\u003e\n\n    \u003cp\u003e\n      A blow off valve is not just a noise maker. On a boosted setup, it helps release excess pressure when the throttle closes, helping reduce compressor surge and keeping your turbo or supercharger system happier under aggressive driving.\n    \u003c\/p\u003e\n\n    \u003cp\u003e\n      If your build is tight on space but still serious about boost, this 40MM HPI race BOV gives you a compact, durable, high-flow solution that looks clean and works hard.\n    \u003c\/p\u003e\n\n    \u003cdiv class=\"hpi-cta\"\u003e\n      \u003ch2\u003eControl The Boost. Protect The Build.\u003c\/h2\u003e\n      \u003cp\u003e\n        Upgrade your boosted setup with the HPI 40MM open style race BOV and get compact race-valve performance without the oversized fitment headache.\n      \u003c\/p\u003e\n      \u003ca href=\"#AddToCart\" class=\"hpi-btn\"\u003eBuy Now\u003c\/a\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"hpi-faq\" style=\"margin-top:60px;\"\u003e\n\n      \u003ch2 class=\"hpi-section-title\"\u003e\n        Frequently Asked Questions\n      \u003c\/h2\u003e\n\n      \u003cdiv class=\"hpi-faq-item\"\u003e\n        \u003ch3\u003eIs this the 40MM or 60MM BOV?\u003c\/h3\u003e\n        \u003cp\u003e\n          This is the smaller 40MM HPI open style race BOV, not the 60MM Big Red style valve.\n        \u003c\/p\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"hpi-faq-item\"\u003e\n        \u003ch3\u003eWhat material is this BOV made from?\u003c\/h3\u003e\n        \u003cp\u003e\n          It is made from precision 6061 billet aluminum.\n        \u003c\/p\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"hpi-faq-item\"\u003e\n        \u003ch3\u003eWhat horsepower range is it rated for?\u003c\/h3\u003e\n        \u003cp\u003e\n          The HPI product listing rates this BOV for 300 to 1200 horsepower.\n        \u003c\/p\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"hpi-faq-item\"\u003e\n        \u003ch3\u003eIs this good for tight engine bays?\u003c\/h3\u003e\n        \u003cp\u003e\n          Yes. This smaller 40MM design is built specifically for compact engine compartments where larger blow off valves may be harder to fit.\n        \u003c\/p\u003e\n      \u003c\/div\u003e\n\n    \u003c\/div\u003e\n#BlowOffValve #BoostedBuild #TurboCar #Supercharged #HPIPerformance\n  \u003c\/section\u003e\n\n\u003c\/div\u003e","brand":"High Performance Injectors","offers":[{"title":"Default Title","offer_id":67655777845300,"sku":"sku-42167194157253","price":119.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/0441\/0420\/files\/image0_55.jpg?v=1791272287","url":"https:\/\/carkart.com\/products\/hpi-40mm-open-style-race-bov-blow-off-valve-billet-aluminum-hpi","provider":"Carkart","version":"1.0","type":"link"}