High-Flow Catless Downpipe with Cat Simulator – Toyota GR Yaris (GXPA16)

Maximise the performance of your Toyota GR Yaris with this High-Flow Catless Downpipe, engineered to deliver unrestricted exhaust flow, faster turbo response, and increased power output. Designed specifically for the G16E-GTS engine, this upgrade removes the restrictive factory catalytic converter to unlock the full potential of your turbocharged setup.

Equipped with an integrated cat simulator, this system helps reduce the likelihood of check engine lights (CEL), making it a more user-friendly solution compared to traditional catless downpipes.

Key Features

• High-flow catless downpipe for Toyota GR Yaris GXPA16
  
• Full decat design for maximum exhaust flow
  
• Integrated cat simulator to help suppress CEL
  
• Improves turbo spool and throttle response
  
• Increases horsepower and torque potential when tuned
  
• Constructed from high-grade T304 stainless steel
  
• Precision TIG welding for durability and strength
  
• CNC-machined flanges for precise OEM-like fitment
  
• Compatible with OEM and aftermarket exhaust systems
  
• Direct bolt-on installation with no cutting or welding required

Performance & Functionality

The factory downpipe restricts exhaust flow, limiting the efficiency of the GR Yaris turbo system. This high-flow design significantly improves exhaust gas evacuation, resulting in:

• Faster turbo spool and improved boost response
  
• Increased power output and sharper acceleration
  
• Enhanced throttle response and engine efficiency
  
• More aggressive exhaust tone under load

Ideal for tuned, track-focused, or high-performance street builds

Cat Simulator Advantage

This downpipe includes an integrated cat simulator to improve usability.

• Helps minimise check engine light occurrence
  
• Simplifies installation without additional CEL solutions
  
• Improves overall ownership experience compared to standard catless setups

Installation

• Direct bolt-on design using factory mounting points
• Quick installation with no modification required

Professional installation is highly recommended

Installation is available at Sequential Racing – Altona North, Melbourne
To organise installation, contact: sales@sequentialracing.com.au

Vehicle Fitment

• Toyota GR Yaris (GXPA16) – 2020+
  
• Engine: G16E-GTS 1.6L Turbocharged Inline-3

What’s Included

• High-Flow Catless Downpipe
  
• Integrated Cat Simulator

Important Notes

• This is a catless (race) downpipe intended for off-road or motorsport use only
  
• Not emissions compliant for road use in most regions
  
• ECU tuning is recommended to optimise performance
  
• Check compatibility with local regulations before installation

Why Choose Sequential Racing?

Sequential Racing supplies performance-driven upgrades for GR platforms, offering proven solutions for enthusiasts chasing real performance gains. This high-flow catless downpipe is designed to unlock the full potential of your GR Yaris.

• Maximum performance and turbo efficiency
  
• Improved response and aggressive sound
  
• Simplified setup with integrated cat simulator

Upgrade your Toyota GR Yaris with this High-Flow Catless Downpipe and experience faster spool, increased power, and a more aggressive driving feel.