{"product_id":"btr-gen-iii-hemi-trinity-tunnel-ram-base-runner-package","title":"BTR Gen III HEMI Trinity Tunnel Ram Base and Runner Package","description":"\u003cp\u003eBuild a custom Gen III HEMI induction system using a BTR Trinity tunnel-ram lower plenum, matching runner pair and installation hardware. Choose 5.7\/6.4 or 6.2 head-specific runners, mid or long length, finish and injector layout.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eThis is a lower-plenum and runner package, not a complete intake. An upper lid is not included.\u003c\/strong\u003e Supply a compatible 12-bolt Hi-Ram-style upper lid, throttle body, injectors, fuel plumbing and calibration separately. No third-party upper lid or intercooler is included.\u003c\/p\u003e\u003ch2\u003eIncluded components\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eOne TRP-TNL-H natural or TRP-TNL-H-BLK black HEMI lower plenum\u003c\/li\u003e\n\u003cli\u003eTwo matching selected BTR HEMI runners\u003c\/li\u003e\n\u003cli\u003eOne TRHHK installation hardware kit\u003c\/li\u003e\n\u003cli\u003eOne matching rail kit only when selected: FRK-10-12 for single-injector runners or FRK-11-12 for dual-injector runners\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eApplication and assembly\u003c\/h2\u003e\u003cp\u003eMatch the runners to the installed cylinder heads, not just engine displacement or vehicle badge. The HEMI lower plenum is not the GM\/Ford Trinity base. Assembly is required. Verify runner height, upper-lid dimensions, hood clearance, injector dimensions, fuel system and throttle-body layout. A 6.2L supercharged-engine conversion does not retain the factory supercharger\/intake assembly.\u003c\/p\u003e\u003cp\u003eEarly 2003–2008 pre-Eagle 5.7L truck heads require separately sourced head adapters; they are not included. Vehicle swaps require individual build checks. Do not assume the factory-hood clearance of a complete conventional Trinity intake applies to this tunnel-ram combination.\u003c\/p\u003e\u003ch2\u003eAvailability\u003c\/h2\u003e\u003cp\u003eAs checked September 22, 2026, BTR listed the natural HEMI tunnel-ram base and black 6.2L single-injector runners as backordered. Final lead time depends on every selected component. Confirm availability before scheduling installation. Natural cast components may differ slightly in shade.\u003c\/p\u003e\u003ch2\u003eFuel-system requirements\u003c\/h2\u003e\u003cp\u003eThe optional HEMI rail kits use -12 ORB connections and include mounting screws, not fuel-line adapter fittings. Supply the required fittings and plumbing separately. BTR lists Bosch-style EV1 and late Gen III HEMI injector applications; late HEMI injectors require INJ-ADPT2-8 adapters, with two sets for a 16-injector setup. Injectors and these adapters are not included. Verify injector length, seals and connector clearance with the selected runners, lower plenum and upper lid before assembly.\u003c\/p\u003e\u003cp\u003eThe TRHHK hardware pack includes O-ring seals, NPT fittings, caps and assembly hardware. Upper-lid-specific hardware and sealing requirements depend on the separately selected lid.\u003c\/p\u003e\u003ch2\u003eShipping estimate\u003c\/h2\u003e\u003cp\u003eFor checkout estimates, contents weight is provisionally 29.4 lb without rails or 34.4 lb with either matching rail kit. This uses the 9.9 lb lower-plenum catalog value, a provisional 9 lb per runner, 1 lb hardware kit and 0.5 lb packing allowance; a rail kit adds 5 lb. BTR catalog weight fields are provisionally treated as pounds. The combined carton is estimated at 30 × 16 × 16 inches with 1 lb empty-carton tare. These are not measured packed shipments; final packing may differ. No upper lid or throttle body is included in these estimates.\u003c\/p\u003e\u003ch2\u003eVehicle references and head selection\u003c\/h2\u003e\u003cp\u003eThese references identify the original engine\/head family, not a bolt-on tunnel-ram installation. Every configuration requires clearance and fuel-system checks plus a separately selected upper lid.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e2009–2023 Challenger\/Charger 5.7L, 2011–2023 Challenger 6.4L and 2012–2023 Charger 6.4L: select 5.7\/6.4 runners.\u003c\/li\u003e\n\u003cli\u003e2009–2010 Dodge Ram 1500, 2011–2024 Ram 1500 and 2019–2024 Ram 1500 Classic with 5.7L HEMI: select 5.7\/6.4 runners. V6 and other engine options are not included.\u003c\/li\u003e\n\u003cli\u003e2015–2023 Challenger and Charger SRT Hellcat 6.2L: select 6.2-specific runners. This is a custom induction conversion, not an upgrade that retains the original supercharger.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eMatch the actual cylinder heads on modified engines and swaps. Factory hood clearance is not guaranteed. A vehicle-search match applies to the package family, not every runner choice. Other Gen III HEMI applications require individual build verification.\u003c\/p\u003e\u003ch2\u003eCompare conventional Trinity intakes\u003c\/h2\u003e\u003cp\u003eFor a conventional intake with its own plenum rather than a tunnel-ram base needing a separate lid, compare the \u003ca href=\"\/products\/btr-trinity-hemi-5-7-6-4-long-runner-natural-single-injector\"\u003e5.7\/6.4 single-injector Trinity\u003c\/a\u003e or \u003ca href=\"\/products\/btr-trinity-hemi-6-2-long-runner-natural-single-injector\"\u003e6.2 single-injector Trinity\u003c\/a\u003e. Verify fuel rails, throttle body and exact included components separately; these are different intake arrangements.\u003c\/p\u003e","brand":"Brian Tooley Racing","offers":[{"title":"Natural lower plenum \/ 6.2 long black - single injector \/ No rails","offer_id":55693245808959,"sku":"SMG-TRP-TNL-H-TRR-62HEMI-BLK-LL-NONE","price":809.96,"currency_code":"USD","in_stock":true},{"title":"Natural lower plenum \/ 6.2 long black - single injector \/ FRK-10-12","offer_id":55693245841727,"sku":"SMG-TRP-TNL-H-TRR-62HEMI-BLK-LL-FRK-10-12","price":959.95,"currency_code":"USD","in_stock":true},{"title":"Natural lower plenum \/ 6.2 long black - dual injector \/ No rails","offer_id":55693245874495,"sku":"SMG-TRP-TNL-H-TRR-62HEMI-BLK-LL-2I-NONE","price":809.96,"currency_code":"USD","in_stock":true},{"title":"Natural lower plenum \/ 6.2 long black - dual injector \/ FRK-11-12","offer_id":55693245907263,"sku":"SMG-TRP-TNL-H-TRR-62HEMI-BLK-LL-2I-FRK-11-12","price":959.95,"currency_code":"USD","in_stock":true},{"title":"Natural lower plenum \/ 6.2 mid black - 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