{"product_id":"muge-racing-intake-manifold-gasket-kit-for-ls1-ls6-1997-2004-silicone-lower-gaskets-o-rings-oe-fit","title":"muge racing Intake Manifold Gasket Kit for LS1\/LS6 (1997–2004) — Silicone Lower Gaskets + O-Rings, OE Fit","description":"\u003cstrong\u003emuge racing’s silicone lower intake manifold gasket kit replaces worn LS1\/LS6 seals to restore a tight intake and reduce vacuum leaks for 1997–2004 Camaro, Corvette, and GTO engines.\u003c\/strong\u003e\n\u003cp\u003eIf your LS1 or LS6 family engine shows rough idle, reduced throttle response, or a history of intake sealing issues, this kit supplies eight OE-spec silicone lower intake gaskets plus O-ring style seals built to fit GM cathedral-port and FAST LSX manifolds. Engineered as a direct replacement for factory parts, the set focuses on durability in high-heat, chemically aggressive engine bays and is sized for 1997–2004 LS1\/LS6 applications. The material choice and precision molding aim to give a consistent compressive seal so you can rebuild or refresh the intake without surprises.\u003c\/p\u003e\n\n\u003ch3\u003eHow will these gaskets affect engine performance?\u003c\/h3\u003e\n\u003cp\u003eReplacing degraded lower intake manifold gaskets removes sources of vacuum leaks that alter air-fuel ratios. A proper seal helps restore intended intake vacuum, which supports smoother idling, crisper throttle response and predictable drivability under load.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRestores factory-level sealing to reduce intake air leaks.\u003c\/li\u003e\n  \u003cli\u003eImproves throttle response by stabilizing intake vacuum.\u003c\/li\u003e\n  \u003cli\u003eHelps maintain correct air-fuel mixtures for consistent combustion.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy choose silicone over standard gasket materials?\u003c\/h3\u003e\n\u003cp\u003eSilicone offers higher heat tolerance and better resistance to oil, fuel vapors and coolant exposure than many traditional gasket rubbers. That resilience translates to longer service life in performance and daily-driven engines where temperatures and chemical exposure are elevated.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHigh temperature resistance suitable for under-hood environments.\u003c\/li\u003e\n  \u003cli\u003eChemical resistance reduces swell and degradation from fluids.\u003c\/li\u003e\n  \u003cli\u003eConsistent compression recovery for reliable resealing after installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this kit fit FAST LSX cathedral port manifolds and factory GM parts?\u003c\/h3\u003e\n\u003cp\u003eYes — the kit is designed to match OE dimensions for 1997–2004 LS1 and LS6 lower intake flanges and is compatible with FAST LSX cathedral-port intake manifolds. Confirm the vehicle year and intake style before ordering to ensure fitment.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDirect-replacement sizing for GM LS1\/LS6 lower intake ports.\u003c\/li\u003e\n  \u003cli\u003eIncludes O-ring style seals for applications requiring sealed bore interfaces.\u003c\/li\u003e\n  \u003cli\u003eEight gaskets provided to cover the full lower intake installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow easy is installation and what should I prepare?\u003c\/h3\u003e\n\u003cp\u003eInstallation follows standard intake removal and gasket replacement procedures; expect to clean mating surfaces and torque to factory specs. Basic hand tools, a torque wrench, and a clean solvent for surface prep are the primary needs.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRemove old gaskets and thoroughly clean mating surfaces before fitting new parts.\u003c\/li\u003e\n  \u003cli\u003eUse factory torque specs and a calibrated torque wrench for even sealing.\u003c\/li\u003e\n  \u003cli\u003eInspect related components (bolts, dowels, manifold surface) during service.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: This muge racing silicone lower intake manifold gasket kit is intended for owners and technicians working on 1997–2004 LS1 and LS6 engines — including Camaro, Corvette and GTO models — who want a durable, OE-spec replacement for stock or aftermarket cathedral-port FAST LSX lower intake manifolds. It’s suited to performance builds, maintenance refreshes, and anyone addressing intake vacuum leaks or preparing an engine for tuning or higher loads.\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: Does this gasket kit fit FAST LSX cathedral port intakes?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The kit is designed to match OE dimensions for FAST LSX cathedral-port and factory LS1\/LS6 lower intakes for 1997–2004 models.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How many gaskets are included and what material are they?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The set includes eight lower intake gaskets made from high-quality silicone for improved heat and chemical resistance.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"muge racing","offers":[{"title":"Default Title","offer_id":55161745342807,"sku":"B08DFTKDL1","price":30.62,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/muge-racing-front-packaging-intake-gasket-set.jpg?v=1790332035","url":"https:\/\/britishgarage.co.uk\/products\/muge-racing-intake-manifold-gasket-kit-for-ls1-ls6-1997-2004-silicone-lower-gaskets-o-rings-oe-fit","provider":"British Garage","version":"1.0","type":"link"}