{"product_id":"manley-subaru-wrx-ej205-sti-ej257-h-tuff-connecting-rod-set-15024-4","title":"Manley Subaru WRX EJ205\/STi EJ257 H Tuff Connecting Rod Set - 15024-4","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003e\u003cstrong\u003eManley H-Tuff Series Connecting Rods — Subaru EJ 5.137\" (15024-4)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eThe H-Tuff design incorporates a wider beam and increased cross-sectional thickness in critical areas — a heavier rod built specifically for high-boost applications, delivering a stronger part with greater safety margin than a standard H-beam.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eForged from 4340 to the same exacting standards Manley developed and had approved by their original equipment customers. Heat treated, stress relieved, shot peened, and 100% magnafluxed. Sets are weight matched to ±1.5 grams, big and small ends are perfectly round, and bend and twist are tightly controlled.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003e\u003cstrong\u003eRated to 750 hp at the flywheel.\u003c\/strong\u003e That's the headroom to run a larger turbo, more boost, and more RPM without the rod being the part you worry about. Bushed small end for a full-floating wrist pin.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003e\u003cstrong\u003eSpecs:\u003c\/strong\u003e 5.137\" center-to-center, 2.165\" big end bore, .840\" big end width, .9055\" (23mm) pin diameter. Approximately 575 grams. 3\/8\" ARP 2000 cap screws standard.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e 02-14 Subaru WRX, 04-21 STI, 04-13 Forester XT, 05-09 Legacy GT and Outback XT — EJ205, EJ255, EJ257.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003e\u003cstrong\u003eGoing further:\u003c\/strong\u003e the H-Tuff Plus version substitutes ARP Custom Age 625+ fasteners for builds pushing past this rating. On an EJ the rod bolt is usually what gives up first at the extremes.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003e\u003cstrong\u003eNote the added weight.\u003c\/strong\u003e The heavier beam is the point — that mass is carrying cylinder pressure, not costing you response in any way you'll feel on a boosted engine.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eSet of 4 rods with ARP 2000 bolts.\u003c\/p\u003e","brand":"Street Strip Supply","offers":[{"title":"Default Title","offer_id":47229236707501,"sku":null,"price":600.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0779\/8105\/7197\/files\/Manley15024-4-3.jpg?v=1786843378","url":"https:\/\/streetstripsupply.com\/products\/manley-subaru-wrx-ej205-sti-ej257-h-tuff-connecting-rod-set-15024-4","provider":"Street Strip Supply","version":"1.0","type":"link"}