HKS Exhaust Performance Joint Pipe - 2013-2022+ Subaru BRZ / Toyota 86 & GR86 / Scion FR-S

The HKS Exhaust Joint Pipe is a direct replacement upgrade for the factory joint pipe on the Toyota 86, GR86, Subaru BRZ, and Scion FR-S. Positioned between the header and front pipe, this section of the exhaust is a known bottleneck in the factory system due to its smaller diameter and dented design for OEM clearance.

HKS improves on the stock layout by increasing the pipe diameter from 54mm to 60mm and using smooth bends without the restrictive dents found in the factory pipe. The result is reduced backpressure, improved exhaust efficiency, and stronger low-to-mid range torque. This joint pipe is also a great supporting upgrade for bolt-on turbo kit setups that need better exhaust flow.

Key Features

• 60mm Piping Diameter: Increases diameter over the factory 54mm joint pipe for improved exhaust flow.
• Reduced Backpressure: Smooth, larger-diameter layout helps improve exhaust efficiency.
• No Restrictive OEM Dents: Replaces the factory pipe that is dented in several places for clearance.
• Improved Low-to-Mid Range Torque: Better flow can help support stronger response through the usable rev range.
• 304 Stainless Steel Construction: Durable stainless steel design built for long-term use.
• Great Turbo Kit Support Mod: Pairs well with bolt-on turbo kits and other exhaust upgrades.
• Complete Install Hardware: Includes the joint pipe, gasket, bolts, and nuts required for installation.

Why We Like It

This is one of those exhaust upgrades that makes sense once you look at the factory part. The OEM joint pipe is small and intentionally dented for clearance, which creates unnecessary restriction. HKS fixes the problem with a larger 60mm stainless pipe and smoother routing, making it a smart supporting mod for naturally aspirated builds and an even better choice for forced induction setups.

Specifications

• Brand: HKS
• Product: Exhaust Joint Pipe
• Material: 304 stainless steel
• Color: Silver
• Piping Inner Diameter: 60mm
• Factory Pipe Diameter: 54mm
• Coating: None
• Installation Hardware Included: Yes
• Install Location: Between header and front pipe / primary and secondary catalytic converter section

Installation Notes

• Designed as a direct replacement for the factory joint pipe.
• It is necessary to lift the engine for pipe replacement.
• Use the included gasket, bolts, and nuts during installation.
• Professional installation is recommended due to the engine-lift requirement.
• Re-check all hardware and exhaust connections after the first heat cycle.

What’s in the Box

• (1) HKS Exhaust Joint Pipe
• (1) Gasket
• Bolts and nuts required for installation
• Included installation hardware per HKS kit contents

Compatibility & Disclaimers

Designed for compatible first- and second-generation Toyota 86 / GR86, Subaru BRZ, and Scion FR-S applications. Exhaust sound, torque response, and performance results may vary depending on headers, front pipe, cat-back, forced induction setup, and tuning. Always verify fitment and local emissions regulations before installation.