Vibrant CEL Eliminator / O2 Restrictor Fitting
2005–2016 Scion tC, tC2, xB2, FR-S 2.0L–2.5L
19021
Overview:
The Vibrant CEL Eliminator / O2 Restrictor Fitting with Adjustable Jet Inserts is a precision-engineered solution designed to prevent check engine light (CEL) issues commonly encountered when installing aftermarket headers on Scion vehicles. Specifically tailored for models including the Scion tC (2005–2016), tC2, xB2, and FR-S, this fitting addresses the P0420 error code triggered by the removal or replacement of the primary catalytic converter.
By simulating proper oxygen sensor readings, this device allows enthusiasts to enjoy the performance benefits of aftermarket headers without the annoyance of persistent CEL warnings. It is an essential upgrade for any Scion owner seeking a clean engine management system while running modified exhaust components.
Key Features:
Engineered for reliability and ease of use, the Vibrant CEL Eliminator offers the following benefits:
- Oxygen sensor simulator fitting designed to prevent P0420 check engine light codes
- Includes optional adjustable jet inserts for fine-tuning sensor readings and optimal performance
- Compatible with M18 x 1.5 threaded oxygen sensors
- Constructed from durable T304 stainless steel for corrosion resistance and longevity
- Designed specifically for installation on the downpipe or S-pipe, not on the header
- Recommended use of the middle jet insert for balanced results
- Simple bolt-on installation requiring no additional modifications
- Retail packaged as a single piece with optional jet inserts available separately
Construction & Design:
The Vibrant CEL Eliminator is crafted from premium T304 stainless steel, ensuring exceptional resistance to heat, corrosion, and wear in demanding exhaust environments. Its robust construction guarantees long-term durability and consistent performance under high-temperature conditions typical of aftermarket header setups.
The fitting features precision-machined threads (M18 x 1.5) to securely accommodate factory or aftermarket oxygen sensors. The inclusion of adjustable jet inserts allows users to calibrate the oxygen sensor signal, effectively simulating the presence of a catalytic converter and preventing false CEL triggers.
Installation & Fitment:
Installation is straightforward and designed for direct replacement on the downpipe or S-pipe oxygen sensor bung. It is critical to avoid installing this fitting on the header itself to ensure proper function and accurate sensor simulation. The product fits a range of Scion models equipped with 2.0L to 2.5L engines, 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
For best results, Vibrant recommends using the middle jet insert included in the kit. No additional tuning or modifications are typically required, making this an ideal plug-and-play solution for enthusiasts upgrading their exhaust systems.
What's Included:
- 1 x Vibrant O2 Sensor Restrictor Fitting (Part #19021)
- Optional Adjustable Jet Inserts (Part #19999) – recommended for optimal tuning
Ideal For:
This product is perfect for Scion owners who have installed aftermarket headers and want to eliminate the check engine light caused by the removal or bypassing of the primary catalytic converter. It is especially suited for:
- Scion tC, tC2, xB2, and FR-S enthusiasts seeking reliable CEL prevention
- Drivers aiming to maintain clean engine management system operation without sacrificing exhaust performance
- Those looking for a durable, easy-to-install solution compatible with factory oxygen sensors
