{"product_id":"universal-turbo-diverter-dump-blow-off-valve-dual-port-with-horn-for-vw-mk4-golf-polo-gti-1-8t-saab-turbo-bov-1001b","title":"VW MK4 Golf Polo GTI 1.8T Blow Off Valve Dual Port Aluminum BOV1001B","description":"\u003cdiv\u003e\n\u003cp\u003eEnhance throttle response and turbo control with the Universal 25mm Dual Port Blow Off Valve (BOV-1001B). This compact aluminum valve is engineered to operate as both a blow-off and a recirculation valve, giving you the satisfying whistle of an atmospheric setup while maintaining engine-management reliability. Its universal 25mm fit makes it an ideal upgrade for VW MK4 Golf and Polo GTI 1.8T, and it also covers Saab Turbo variants and a wide range of other turbocharged engines that use a 25mm port.\u003c\/p\u003e \u003cp\u003eDesigned to reduce compressor surge and improve response during shifts, this BOV helps keep boost consistent and acceleration smooth. The dual-port design lets you tailor venting behavior to your preferences and local regulations—delivering a crisp whistle without upsetting the ECU when recirculation is required.\u003c\/p\u003e \u003cp\u003eCompatibility is broad: 25mm fitments cover all VAG 1.8T engines (as found in Golf, Polo, Audi A3\/S3\/A4\/TT, Passat, Seat Leon\/Ibiza\/Cupra, and more) and Saab Turbo applications. It may also fit other 25mm turbo systems such as Fiat Punto GT \u0026amp; Coupe, Porsche Bi Turbo units, Renault 5 GT Turbo, and similar setups. Always ensure your specific vehicle uses a 25mm port to maximize performance gains.\u003c\/p\u003e \u003ch4\u003eBenefits \u0026amp; Tips\u003c\/h4\u003e\n\u003cul\u003e \u003cli\u003eImprove throttle response and reduce lag by quickly venting excess boost during shifts, helping you race to the next gear with less hesitation.\u003c\/li\u003e \u003cli\u003eEnjoy a balanced sound profile—the valve provides audible blow-off while maintaining recirculation for ECU stability on engines that require it.\u003c\/li\u003e \u003cli\u003eInstallation tip: Verify the 25mm port matches your turbo’s intake piping and that Saab variants are compatible with your model before fitting.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch4\u003eProduct specifications\u003c\/h4\u003e\n\u003cul\u003e \u003cli\u003eBrand Name: NONE\u003c\/li\u003e \u003cli\u003eModel Name: BOV-1001B\u003c\/li\u003e \u003cli\u003eType: Universal Turbo Diverter \/ Blow Off Valve, Dual Port\u003c\/li\u003e \u003cli\u003ePort Size: 25.0mm (1\\\")\u003c\/li\u003e \u003cli\u003eHorn Diameter: 34.8mm (1.35\\\")\u003c\/li\u003e \u003cli\u003eMaterial: High Quality Aluminum Alloy\u003c\/li\u003e \u003cli\u003eColor: Black\u003c\/li\u003e \u003cli\u003eWeight: 219 g\u003c\/li\u003e \u003cli\u003eDimensions: Port 25.0mm; Horn 34.8mm\u003c\/li\u003e \u003cli\u003eApplication: All 25mm fitments including VAG 1.8T engines (Golf, Polo, Audi A3\/S3\/A4\/TT, Passat, Seat Leon\/Ibiza\/Cupra, etc.), Saab Turbo variants (check before purchase), Fiat Punto GT \u0026amp; Coupe, Renault 5 GT Turbo, and other 25mm turbo systems\u003c\/li\u003e \u003cli\u003eCertification: External Testing Certification ISO 9001\u003c\/li\u003e \u003cli\u003eOrigin: Mainland China\u003c\/li\u003e \u003cli\u003eSpecial Features: Blow Off Valve\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch4\u003ePackage includes:\u003c\/h4\u003e\n\u003cul\u003e \u003cli\u003e1x 25mm Dual Dump Valve\u003c\/li\u003e \u003cli\u003e2x Flexible Pipe\u003c\/li\u003e \u003cli\u003e2x Nipples\u003c\/li\u003e \u003cli\u003e2x Clips\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch4\u003eWarnings\/Reminders\u003c\/h4\u003e\n\u003cp\u003eCheck before purchase—Saab have an extremely high number of Turbo engines. Compatibility can vary across Saab variants, so confirm fitment with your specific model before installing.\u003c\/p\u003e \u003cp\u003eAll electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty.\u003c\/p\u003e \u003cp\u003eProviding quality and trusted service since 2002 at intercyprus.com.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"InterCyprus Trading Ltd","offers":[{"title":"black","offer_id":52187249803606,"sku":"1005006952298284-black","price":44.35,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0530\/0604\/1274\/files\/Sc7c70c095aec405e9dc1cdce5d6c2111w.webp?v=1767178464","url":"https:\/\/www.intercyprus.com\/products\/universal-turbo-diverter-dump-blow-off-valve-dual-port-with-horn-for-vw-mk4-golf-polo-gti-1-8t-saab-turbo-bov-1001b","provider":"InterCyprus Trading Ltd","version":"1.0","type":"link"}