{"product_id":"spectre-coupler-4in-id-black","title":"Spectre Coupler 4in. ID - Black","description":"\u003cp\u003eThe Spectre Coupler 4in. ID in Black (part number 97711) is a straight-style PVC coupler that joins two 4-inch OD intake tubes or ducting components in naturally aspirated setups. The 97711 provides an air-tight, vibration-damping connection for cold-air intake extensions, air box connections, and replacement of damaged factory couplers at the 4-inch diameter. Stainless steel worm-gear hose clamps are included for a secure, rattle-free installation. Not suitable for pressurized turbocharger or supercharger intake applications.\u003c\/p\u003e\n\n\u003ch4\u003eFeatures and Benefits\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e4-inch inside diameter mates with standard 4in OD intake tubing and ducting\u003c\/li\u003e\n\u003cli\u003ePVC material provides flexibility for easy installation and absorbs engine vibration\u003c\/li\u003e\n\u003cli\u003eStraight coupler design for same-diameter tube-to-tube connections\u003c\/li\u003e\n\u003cli\u003eBlack finish suits most engine bay color schemes\u003c\/li\u003e\n\u003cli\u003eIncludes stainless steel worm-gear hose clamps for leak-free retention\u003c\/li\u003e\n\u003cli\u003eSuitable for naturally aspirated cold-air intake, filter connects, and air ducting repairs\u003c\/li\u003e\n\u003cli\u003eConsistent wall thickness from Spectre Performance manufacturing\u003c\/li\u003e\n\u003cli\u003eEconomical solution for intake system repairs and custom builds at the 4-inch size\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e97711\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSpectre Performance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003ePVC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInside Diameter\u003c\/td\u003e\n\u003ctd\u003e4 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColor\u003c\/td\u003e\n\u003ctd\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoupler Style\u003c\/td\u003e\n\u003ctd\u003eStraight (same-diameter)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardware Included\u003c\/td\u003e\n\u003ctd\u003eStainless steel worm-gear hose clamps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eNaturally aspirated intake \/ ducting only (non-pressurized)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003eSpectre Performance limited warranty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch4\u003eWhat's Included\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Spectre 97711 PVC straight coupler (4in ID, black)\u003c\/li\u003e\n\u003cli\u003eStainless steel worm-gear hose clamps\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eFrequently Asked Questions\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eWhat tube size does the Spectre 97711 fit?\u003c\/strong\u003e\u003cbr\u003e\nThe 97711 has a 4-inch inside diameter and mates with 4-inch OD intake tubing used in most large-diameter cold-air intake kits and air duct assemblies.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan the 97711 be used on a turbocharged vehicle?\u003c\/strong\u003e\u003cbr\u003e\nNo. This is a PVC coupler rated for naturally aspirated applications only. Pressurized intake systems require a silicone coupler rated for boost pressure. Use the 97711 on the cold-air intake pre-turbo section or on naturally aspirated engines only.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat is the difference between the 97711 and the 9771?\u003c\/strong\u003e\u003cbr\u003e\nBoth are 4-inch straight black PVC couplers from Spectre. They may differ in length or wall construction. Confirm dimensions when ordering if you have strict overall length requirements for your intake layout.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDoes the 97711 include hose clamps?\u003c\/strong\u003e\u003cbr\u003e\nYes, stainless steel worm-gear clamps are included for secure installation at both ends of the coupler.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eIs the Spectre 97711 compatible with silicone intake hoses?\u003c\/strong\u003e\u003cbr\u003e\nThe 97711 connects tube-to-tube (rigid tubing). If one end is a silicone hose, the silicone hose outer diameter must match the coupler 4-inch inside diameter. Confirm compatibility before installation.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan I trim the 97711 coupler to a shorter length?\u003c\/strong\u003e\u003cbr\u003e\nPVC can be trimmed with a sharp utility knife or fine-tooth saw. Ensure the cut is square and that sufficient coupler length remains to provide a secure clamp zone on each tube end (minimum 1 inch engagement per side).\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWill this coupler hold up under heat cycling in the engine bay?\u003c\/strong\u003e\u003cbr\u003e\nPVC couplers perform well in engine bay ambient temperatures typical of naturally aspirated applications. They are not suited for high-heat applications such as intercooler piping on turbocharged vehicles where silicone is the appropriate choice.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eHow do I ensure a leak-free installation with the 97711?\u003c\/strong\u003e\u003cbr\u003e\nInsert both tube ends fully into the coupler, position clamps 0.5 inches from the tube ends, and tighten to approximately 30-35 in-lb. Check for air leaks at idle by listening for hissing sounds around the couplers with the engine running.\u003c\/p\u003e\n\n\u003ch4\u003eInstallation Instructions\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eVerify that both intake tube ends measure 4 inches OD before installation.\u003c\/li\u003e\n\u003cli\u003eSlide a hose clamp onto each tube end before inserting the coupler.\u003c\/li\u003e\n\u003cli\u003eInsert one tube fully into one end of the Spectre 97711 coupler.\u003c\/li\u003e\n\u003cli\u003eInsert the second tube fully into the other end of the coupler.\u003c\/li\u003e\n\u003cli\u003ePosition each hose clamp over the coupler-to-tube overlap zone, approximately 0.5in from the tube end.\u003c\/li\u003e\n\u003cli\u003eTighten each clamp evenly to secure the joint without over-compressing the PVC.\u003c\/li\u003e\n\u003cli\u003eInspect the installation before running the engine to confirm alignment and full tube insertion on both sides.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003cp\u003e\u003cstrong\u003eProposition 65 Warning:\u003c\/strong\u003e This product can expose you to chemicals including Diisononyl Phthalate (DINP), which is known to the State of California to cause cancer. For more information, go to \u003ca href=\"https:\/\/www.p65warnings.ca.gov\"\u003ewww.P65Warnings.ca.gov\u003c\/a\u003e.\u003c\/p\u003e","brand":"Spectre","offers":[{"title":"Default Title","offer_id":40482907717711,"sku":"SPE97711","price":19.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/spectre-coupler-4in_-id-black-silicone-couplers-hoses-spectre.jpg?v=1699980354","url":"https:\/\/www.blackopsautoworks.com\/products\/spectre-coupler-4in-id-black","provider":"Black Ops Auto Works","version":"1.0","type":"link"}