{"product_id":"arp-pro-series-main-stud-kit-hyundai-veloster-n-elantra-n-kona-n-2-0t","title":"ARP Pro Series Main Stud Kit - Hyundai i30 N \/ Veloster N \/ Elantra N \/ Kona N 2.0T","description":"\u003cp\u003e\u003cstrong\u003eARP Pro Series Main Stud Kit\u003c\/strong\u003e — ten screw-in main cap studs with twelve-point nuts, replacing the factory main cap bolts on the 2.0 litre Theta II turbo block. Studs clamp the main caps far more consistently than stretch bolts, which is what lets the bottom end hold up to raised boost and power.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Hyundai i30 N 2018 on, Veloster N 2019-2022, Elantra N 2022-2026 and Kona N 2022-2023 — 2.0L Theta II turbo, five main bearings. Ten studs, two per main cap.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThese are MAIN studs, for the bottom end.\u003c\/strong\u003e They are not head studs and not cam tower studs — both of those are separate ARP kits and we list them separately.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eARP's installation requirement, which you should plan for.\u003c\/strong\u003e In ARP's own words: when changing from factory fasteners to high strength fasteners, clamping force and tolerances will change, so it is necessary to check the main bearing bores for size and out-of-round after the studs are installed, and align hone the block if necessary. The studs themselves go in hand tight and need no machining to fit.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDetails:\u003c\/strong\u003e 10 main studs in ARP2000 alloy steel, which ARP rates at 220,000 psi; 10 flanged 8740 chrome moly twelve-point nuts; M10 x 1.25 thread; broached hex socket ends for hand-tight installation; black oxide finish; torque in three equal steps to 70 ft-lbs using the supplied lubricant; a half-ounce pack of ARP Ultra-Torque fastener assembly lubricant included. No separate washers — the nuts are flanged.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWorth knowing:\u003c\/strong\u003e most sellers advertise this kit as 8740 chromoly at 200,000 psi. Per ARP's own release that is wrong. The studs are ARP2000 at 220,000 psi and it is only the nuts that are 8740.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAvailability:\u003c\/strong\u003e IN STOCK at our distributor as of 5 November 2026.\u003c\/p\u003e\n\u003cp\u003eNot sure this suits your car? Ask us before ordering — we would rather check the fitment than process a return.\u003c\/p\u003e","brand":"ARP","offers":[{"title":"Default Title","offer_id":50947976560826,"sku":"228-5401","price":255.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0276\/1359\/3623\/files\/228-5401.jpg?v=1793898311","url":"https:\/\/n75motorsports.ca\/products\/arp-pro-series-main-stud-kit-hyundai-veloster-n-elantra-n-kona-n-2-0t","provider":"N75 MotorSports","version":"1.0","type":"link"}