Ships within 48 hours · Estimated delivery Sep 15 - Sep 20
This spacer is designed for use with O2 sensors
leak-proof seal
5 in (140 mm)
the exhaust has been designed to deliver both power and torque gains throughout the rev range
the sound levels are increased and the frequency content is improved
ARP 201-4605 Head Stud Kit for BMW 2.3L (S14) 4-cylinder ymm_81 This spacer is designed forIt is for good reason that virtually every top professional engine builder relies on ARP Pro Series head studs for their all out competition powerplants. Simply stated, theres not a better stud setup on the market today. For openers, ARP uses a premium grade 8740 alloy that is rated far superior to aircraft quality. Each stud is placed vertically in special racks and precisely heat treated to 200, 000 psi. This procedure ensures complete heat
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