Perrin Performance Stud Kit W/Nuts M10 x 1.25 x 37mm

2002–2007 Subaru WRX / 2004–2018 Subaru WRX STI

Part #: PSP-EXT-099

Overview

The Perrin Performance Stud Kit W/Nuts M10 x 1.25 x 37mm is an essential upgrade for Subaru enthusiasts who want to ensure reliable and secure mounting of up-pipes, headers, downpipes, and turbos. Designed specifically for the Subaru WRX and WRX STI models from 2002 to 2018, this kit helps address common issues related to sheared studs during maintenance or upgrades. Whether you're a daily driver, a spirited enthusiast, or a professional mechanic, this stud set provides a durable and dependable solution to keep your turbocharged Subaru running smoothly.

Replacing factory studs with high-quality aftermarket options like Perrin's ensures improved strength and longevity, reducing the risk of costly repairs and downtime. These studs are engineered to withstand the high temperatures and stresses associated with turbocharged applications, giving you peace of mind during installation and long-term use.

Key Features

Perrin's Stud Kit W/Nuts is crafted from premium materials to deliver exceptional durability and performance. The high-grade steel construction ensures resistance to heat and corrosion, making it suitable for the demanding environment of turbocharged Subaru engines. The kit includes three studs, each measuring 37mm in length, with M10 x 1.25 thread pitch, providing a secure fit for your up-pipes and headers.

• Constructed from high-quality, heat-resistant steel for maximum strength and durability.
• Designed specifically for Subaru WRX and WRX STI models from 2002 to 2018.
• Includes three studs with nuts, offering a reliable replacement for worn or sheared factory studs.
• Precision-machined to ensure proper fitment and ease of installation.
• Resistant to corrosion and thermal stress, supporting long-term reliability.
• Ideal for replacing damaged or sheared studs during engine repairs or upgrades.
• Backed by Perrin's standard limited warranty for quality assurance.

Construction & Design

The Perrin Stud Kit features a robust design utilizing high-grade steel that can withstand the extreme heat and mechanical stresses encountered in turbocharged Subaru engines. The studs are machined to precise specifications, ensuring a perfect fit with OEM and aftermarket components. The nuts included are engineered to provide secure fastening without stripping or loosening over time. This kit's simple bolt-on design allows for straightforward installation, making it accessible for both professional mechanics and DIY enthusiasts.

Installation & Fitment

The Perrin Stud Kit W/Nuts is a direct bolt-on replacement for the factory studs in your Subaru's up-pipes, headers, and turbo assembly. No cutting, drilling, or complex modifications are required. Basic hand tools and standard mechanic skills are sufficient for installation. It is recommended to apply a suitable thread locker during assembly to ensure the studs remain securely in place under high thermal and mechanical loads. Always follow proper torque specifications and procedures to avoid damaging components.

• Easy, straightforward installation with common hand tools.
• No cutting, drilling, or special tuning required.
• Ideal for repairs, upgrades, or preventative maintenance on Subaru WRX and WRX STI models.

What's Included

• Three high-quality steel studs with nuts
• Installation hardware and instructions

Ideal For

• Subaru WRX and WRX STI owners performing engine repairs or upgrades
• Enthusiasts seeking a durable replacement for worn or sheared studs
• Professional mechanics working on turbocharged Subaru engines
• Anyone looking to improve the reliability of their turbo mounting hardware