{"product_id":"straight-reducer-coupler-silicone-hose-id-3-5inch-to-4inch","title":"Straight Reducer Coupler Silicone Hose ID 3.5inch to 4inch","description":"\u003cp\u003e\u003cstrong\u003eThe Taukealugs straight reducer coupler is a heavy-duty 4-ply silicone hose that joins 3.5-inch to 4-inch turbo, intercooler, or intake piping and ships with two stainless steel T-bolt clamps.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis reinforced silicone coupler is built for high-temperature engine and forced-induction systems where a durable, flexible connection is required between mismatched pipe diameters. Its 3\" (76mm) length, 5mm wall thickness and 4-ply construction balance strength and pliability, while the included stainless T-bolt clamps provide even clamp pressure for leak-resistant assemblies.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this reducer handle heat and pressure in turbo systems?\u003c\/h3\u003e\n\u003cp\u003eThe coupler is made from high-temperature pure silicone and reinforced with four plies for improved burst and fatigue resistance. It tolerates a wide temperature range and resists softening or cracking under typical turbocharged operating conditions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTemperature range: -60°C to 230°C (-140°F to 428°F)\u003c\/li\u003e\n  \u003cli\u003eBursting pressure approximately 2 MPa for reliable performance\u003c\/li\u003e\n  \u003cli\u003e4-ply reinforcement reduces expansion and blowout risk\u003c\/li\u003e\n  \u003cli\u003e5mm wall thickness balances heat resistance with flexibility\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill it fit my 3.5\" to 4\" intake or intercooler piping?\u003c\/h3\u003e\n\u003cp\u003eThe interior diameter transition covers pipes from 3.5 inches (89 mm) to 4 inches (102 mm), designed to create a snug transition between those common sizes. Its 3\" overall length gives enough engagement depth for secure clamping without taking excessive space in tight engine bays.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCoupler ID sizes: 3.5\" to 4\" (89–102 mm)\u003c\/li\u003e\n  \u003cli\u003eLength: 3 inches (76 mm) for compact installations\u003c\/li\u003e\n  \u003cli\u003eCompatible with intercooler, turbo outlet, charge pipe and intake plumbing\u003c\/li\u003e\n  \u003cli\u003eFlexible enough to accommodate slight misalignment between pipes\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat fastening hardware is included and why does it matter?\u003c\/h3\u003e\n\u003cp\u003eTwo stainless steel T-bolt clamps are included to ensure consistent, high-clamp force around the coupler circumference. T-bolt clamps distribute pressure evenly and resist corrosion, reducing the chance of leaks or clamp failure compared with standard worm-gear clamps in high-pressure applications.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIncludes 2x stainless steel T-bolt clamps for uniform clamping\u003c\/li\u003e\n  \u003cli\u003eClamps are corrosion resistant for long-term use\u003c\/li\u003e\n  \u003cli\u003eBetter sealing and less deformation than typical screw clamps\u003c\/li\u003e\n  \u003cli\u003eDesigned for turbo and charge-air systems where pressurization fluctuates\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Taukealugs straight reducer is ideal for DIY tuners, professional shops, and performance enthusiasts who need a short, durable silicone transition between 3.5\" and 4\" piping. It works well in turbocharger plumbing, intercooler connections, and custom intake builds where reliable sealing, high-temperature stability, and compact length are required. Choose this coupler when you want a reinforced silicone joiner with stainless hardware that stands up to repeated thermal cycles and boost pressures.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What sizes does this coupler connect?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It transitions between 3.5\" (89 mm) and 4\" (102 mm) piping with a 3\" (76 mm) overall length.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are the clamps corrosion resistant?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, the two included T-bolt clamps are stainless steel for improved corrosion resistance.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Taukealugs","offers":[{"title":"Default Title","offer_id":48086958801054,"sku":"B097N1GZLV","price":29.73,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/taukealugs-straight-reducer-front-view.jpg?v=1785910749","url":"https:\/\/northtrailauto.ca\/products\/straight-reducer-coupler-silicone-hose-id-3-5inch-to-4inch","provider":"North Trail Auto","version":"1.0","type":"link"}