Brock's Gen 2 to Gen 3 Hayabusa Full Exhaust Adapter Kit

Brock's Gen 2 to Gen 3 Hayabusa Full Exhaust Adapter Kit (2022-2025)

Upgrade your Gen 2 full exhaust system to fit the Euro 5-compliant Gen 3 Hayabusa (2022-2025) with the Brock’s Performance Adapter Kit.

Designed to enable proper mounting and functionality of Gen 2 exhaust systems such as:

• Alien Head

• CT Meg

• Penta-Carbon

• ShortMeg

• TiWinder

Note: This kit is not compatible with the CT Single or CT Dual exhaust systems.

KIT INCLUDES:

• Plug and Play O2 Sensor Harness

• 18mm to 12mm Aluminum Bung Adapter

• 4-Pack of Graphite Exhaust Gaskets

• Radiator Spacer Kit with Stainless Hardware

• Permatex Anti-Seize Lubricant

WHY THIS KIT IS ESSENTIAL:

While most Gen 2 exhausts physically fit the Gen 3 Hayabusa, the electronics won’t cooperate—Gen 3 models feature dual 12mm oxygen sensors. Gen 2 systems with 18mm bungs will cause O2 sensor codes that degrade performance. This adapter kit corrects that issue while enhancing fitment.

Also works with most aftermarket Gen 2 Hayabusa full exhausts that include an 18mm O2 bung.

❗Note: After installation, the 18mm bung can no longer be used for AFR data logging.