{"product_id":"arp-cylinder-head-stud-kit-e46-m3","title":"E46 M3 S54 ARP Cylinder Head Stud Kit 8740 Chromoly, Part Number 200-4101","description":"\u003cp\u003eFor the E46 M3’s S54 - a naturally aspirated engine that revs hard, runs hot and rewards precision. These ARP 8740 chromoly studs (part number 200-4101) replace the factory stretch bolts to lock the head down with repeatable clamping force. Critical for stage 1+ fast road builds, track day use, or any S54 where you’ve raised compression, added cams, or run sustained high-RPM loads.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eE46 M3 specific:\u003c\/strong\u003e Designed for the S54’s 11mm x 1.25 thread pitch and deck height - not a generic BMW kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStage 2 \u0026amp; beyond ready:\u003c\/strong\u003e Handles increased cylinder pressure from forced induction, nitrous or aggressive NA tuning without creep\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDecat or track day? Yes.\u003c\/strong\u003e No thermal cycling issues - unlike factory bolts, these won’t yield after repeated heat cycles\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM plus fitment:\u003c\/strong\u003e Uses original torque sequence and spec; no re-tap, no machining, no guesswork\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat’s in the box:\u003c\/strong\u003e Full set of studs + matching 12-point nuts - nothing missing, nothing extra\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSearch terms this kit actually matches: E46 M3 S54 head studs, ARP 200-4101, S54 stage 2 fastening, S54 decat build studs, E46 track day head studs, S54 OEM plus upgrade, S54 cylinder head fasteners, S54 head gasket retention, E46 M3 head bolt to stud, S54 high-RPM clamping.\u003c\/p\u003e","brand":"Cuz Race Cars","offers":[{"title":"Default Title","offer_id":54381455049047,"sku":"ES2570243","price":286.35,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1038\/4575\/7271\/files\/arp_kit__96593.1536053742_f5396bda-fc04-46ca-b013-825d48c72e0e.jpg?v=1787133880","url":"https:\/\/cuzracecars.com\/products\/arp-cylinder-head-stud-kit-e46-m3","provider":"Cuz Race Cars","version":"1.0","type":"link"}