Vibrant CEL Eliminator / O2 Restrictor Fitting

2005–2016 Scion tC, 2008–2015 Scion xB, 2012–2016 Scion FR-S, 2005–2016 Scion tC2

19019

Overview:

The Vibrant CEL Eliminator / O2 Restrictor Fitting is a precision-engineered solution designed to prevent check engine light (CEL) issues caused by aftermarket headers on select Scion models. When upgrading your Scion tC, tC2, xB2, or FR-S with an aftermarket header that removes or replaces the primary catalytic converter, the vehicle’s oxygen sensors often trigger a P0420 error code. This Vibrant fitting simulates the proper oxygen sensor readings, effectively eliminating false CEL warnings and allowing your performance modifications to function without interruption.

Ideal for enthusiasts who want to maintain a clean engine management system while enjoying the benefits of enhanced exhaust flow, this product is a must-have for Scion owners looking to optimize their vehicle’s performance without sacrificing reliability or drivability.

Key Features:

Engineered to provide a reliable fix for CEL issues related to aftermarket headers, the Vibrant O2 Sensor Restrictor Fitting offers the following features:

• 90-degree oxygen sensor simulator fitting designed specifically for Scion applications
• Adjustable jet inserts included to fine-tune oxygen sensor readings and optimize performance
• Prevents P0420 check engine light codes caused by removal or modification of the primary catalytic converter
• Constructed from durable T304 stainless steel for long-lasting corrosion resistance
• Thread size M18 x 1.5, compatible with factory oxygen sensor threads
• Designed for installation on the downpipe or S-pipe only; not intended for header installation
• Includes multiple jet inserts with a recommended middle jet for best results
• Simple bolt-on installation with no permanent modifications required
• Retail pack includes one fitting with adjustable jet inserts

Construction & Design:

The Vibrant CEL Eliminator is crafted from premium T304 stainless steel, ensuring exceptional durability and resistance to heat and corrosion commonly encountered in exhaust systems. The 90-degree design allows for easy installation in tight spaces on the downpipe or S-pipe, maintaining proper sensor orientation and fitment. The adjustable jet inserts provide a customizable solution to simulate oxygen sensor signals accurately, helping to prevent false check engine lights without compromising engine management or drivability.

Installation & Fitment:

This O2 sensor restrictor fitting is designed exclusively for Scion models equipped with aftermarket headers that eliminate the primary catalytic converter, including:

• 2005–2010 Scion tC 2.4L
• 2011–2016 Scion tC 2.5L
• 2008–2015 Scion xB 2.4L
• 2012–2016 Scion FR-S 2.0L
• 2005–2016 Scion tC2

Installation is straightforward and requires threading the fitting into the downpipe or S-pipe oxygen sensor bung. It is critical not to install this device on the header itself. The included adjustable jet inserts allow you to fine-tune the oxygen sensor simulation for optimal results, with the middle jet insert recommended as the starting point. No additional modifications or tuning are typically necessary.

What's Included:

• One Vibrant 90-degree O2 sensor restrictor fitting (Part #19019)
• Set of adjustable jet inserts (Part #19999)
• Installation instructions

Ideal For:

This product is perfect for Scion enthusiasts who have upgraded their exhaust system with aftermarket headers and want to avoid persistent check engine light issues without reverting to factory catalytic converters. It is especially suited for owners of the Scion tC, tC2, xB2, and FR-S models seeking a clean, reliable, and adjustable solution to oxygen sensor errors caused by header modifications.