{"product_id":"intake-manifold-for-chevrolet-corvette-1997-2007-cathedral-port-black-w-fuel-rail-efi","title":"Intake Manifold for Chevrolet Corvette (1997-2007) Cathedral Port Black w\/Fuel Rail EFI","description":"\u003ch2\u003eHigh-Flow Cathedral Port Intake Manifold for 1997-2007 Chevrolet Corvette (LS1\/LS2\/LS6 \/ C5\/C6)\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eDesigned for high-rpm performance builds:\u003c\/strong\u003e This single-plane EFI intake manifold replaces the restrictive factory composite unit to maximize airflow and fuel delivery for Cathedral Port LS engines operating in the 2500-7000 RPM range.\u003c\/p\u003e\n\u003ch3\u003eThe Stock Corvette Airflow Limitation\u003c\/h3\u003e\n\u003cp\u003eThe factory composite intake manifolds found on C5 and early C6 Corvettes are optimized for mid-range torque and strict emissions compliance, which fundamentally chokes high-rpm breathing. While the OEM plastic construction resists heat soak moderately well, the internal runner design limits plenum volume and becomes a severe bottleneck on modified 5.7L and 6.0L engines. Forced induction setups or aggressive cam profiles quickly outrun the factory flow characteristics, causing a steep drop in volumetric efficiency and power past 5,500 RPM. Additionally, the composite material can fail under extreme boost pressures.\u003c\/p\u003e\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis satin aluminum single-plane intake manifold is engineered to eliminate high-rpm choking on Cathedral Port LS1, LS2, and LS6 blocks. By utilizing a 4150 square bore throttle body base combined with an included high-flow EFI fuel rail setup, it bridges the gap between classic hot-rod architecture and modern engine management. The 5.417-inch intake height and oversized 2.50\" H x 1.15\" W ports deliver a high-velocity, direct-line path into the cylinder heads. The robust cast aluminum construction allows for precision port-matching or aggressive forced induction pressures that would otherwise split a factory plastic manifold. Rated for peak efficiency between 2,500 and 7,000 RPM, it ensures consistent cylinder filling at the top end of the tachometer.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 14px;\"\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e1997-2007 Chevrolet Corvette\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eEngine \/ Chassis\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eLS1, LS2, LS6 \/ C5, C6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eStock Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e345-405 hp \/ 350-400 lb-ft (Approx)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eGM LS1 Engines (Cathedral Port)\u003c\/li\u003e\n\u003cli\u003eGM LS2 Engines (Cathedral Port)\u003c\/li\u003e\n\u003cli\u003eGM LS6 Engines (Cathedral Port)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eThe Chevrolet Muscle Caliber\u003c\/h3\u003e\n\u003cp\u003eBuilt to handle the immense cylinder pressures of modified GM LS platforms, this aluminum manifold ensures your Corvette delivers the top-end power, structural rigidity, and reliable fuel distribution required for track days, drag passes, and high-performance street builds.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":48204770115832,"sku":"DS-EKL791F64","price":289.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/intake-manifold-for-chevrolet-corvette-1997-2007-cathedral-port-black-w-fuel-rail-efi-1.webp?v=1775581234","url":"https:\/\/performancechiptuning.com\/products\/intake-manifold-for-chevrolet-corvette-1997-2007-cathedral-port-black-w-fuel-rail-efi","provider":"Performance Chip Tuning","version":"1.0","type":"link"}