M157 ARP Head Studs 2019-bmw-230i-xdrive-esi3939861

M157 ARP Head Studs 2019-bmw-230i-xdrive-esi3939861Designed as a direct replacement for factory M157 head bolts, our ARP Head Studs are one of the most popular upgrades for your high boost M157 Engine. These 11mm ARP studs are made of 625 grade Inconel and are equipped to handle extreme cylinder pressures. These studs have proper thread length for your M157 engine. Don't purchase the wrong hardware. Trust the engineers at PTG to get you setup right! Kit Includes: Twenty ARP 625 Grade Inconel Head

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Exact OEM fitment