ARP

ARP 260-4701 Head Stud Kit – Subaru EJ20/EJ25
Serious performance needs serious hardware. This genuine ARP Head Stud Kit (260-4701) is a must-have upgrade for high-boost or high-compression Subaru EJ20 and EJ25 engines. Trusted by engine builders worldwide, these studs offer superior clamping force and reliability over factory head bolts—ideal for builds aiming for power and durability.

Fits: Subaru WRX/STI EJ20 & EJ25 engines

For 11mm applications on Subaru models

Reusable and designed to handle extreme cylinder pressures

ARP 260-6302 Connecting Rod Bolt Kit – Subaru EJ20 / EJ25
When engine reliability matters, ARP delivers. This ARP 260-6302 Rod Bolt Kit is a direct upgrade for Subaru EJ20 and EJ25 connecting rods. Made from ARP2000 material, these bolts offer incredible strength and fatigue resistance — perfect for high-RPM or high-boost builds.

Fits: Subaru EJ20 & EJ25 engines (WRX, STI)

Includes 8 ARP2000 rod bolts

Tensile strength: 220,000 psi

Replaces factory rod bolts with precision-engineered fasteners

Brand new, sealed package

Upgrade your bottom end with peace of mind.

ARP 260-2801 Flywheel Bolt Kit – Subaru FA20 (BRZ/FR-S/86, WRX)