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Optional handmade carbon-fibre rear diffuser to complement aesthetics
TDesigned to make the X4 M / X4 M Competition stand out from the crowd even more
Specifically designed to interface with AEM engine management systems
500˝ Thread Length 1
the addition of these pipes makes remapping the ECU mandatory to get the full potential from the system
ARP 260-4702 Head Stud Kit for Subaru EJ Series Phase 2 '99 to present SOHC ymm_31 Optional handmade carbon-fibre rear diffuserIt 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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US$ 4250.00