5X Racing » ARP Racing Products

Fits: 1990-2005 Mazda Miata with 1.6L and 1.8L engines.

A common problem with Spec Miata racecars is the crank pulleys coming loose because of the OEM 10mm bolts breaking as the engine is often bounding off the rev-limiter. These Properly sized bolts wi...

Replaces crankshaft main cap bolts with high strength studs/nut configuration and will fit all 1990-2005 Mazda Miata's

Package includes: Mazda Miata ARP Pro Series 218-4701 Cylinder Head Stud Kit Mazda Miata ARP 218-5401 Main Stud Kit Mazda Miata ARP 118-6401 Connecting Rod Bolt Kit.

Fits all Mazda Miata's from 1990-2005 Converts the OEM cylinder head bolt configuration to that of a high-strength stud/nut configuration to handle higher amounts of boost and for engines squeezin...