MST Performance Catless Downpipe – Toyota GR Supra A90/A91 B58 3.0L

Unlock the true performance and sound of your B58 engine with the MST Performance Catless Downpipe, designed for the Toyota GR Supra A90/A91 and other B58-powered BMW platforms. By removing the restrictive factory catalytic converter, this upgrade significantly improves exhaust flow, delivering faster turbo spool, sharper throttle response, and a more aggressive exhaust note.

Engineered for performance-focused builds, this downpipe is a key supporting modification for Stage 2 tuning, allowing your Supra to reach its full power potential while enhancing overall driving dynamics.

Key Features

• MST Performance catless downpipe for B58 3.0L engine
  
• Designed for Toyota GR Supra A90/A91 and BMW B58 platforms
  
• High-flow catless design for maximum exhaust efficiency
  
• Improves turbo spool and throttle response
  
• Increases horsepower and torque potential when tuned
  
• Enhances exhaust sound with a deeper, more aggressive tone
  
• Direct bolt-on fitment for compatible vehicles
  
• Durable construction for high-performance applications

Performance & Sound

The factory downpipe restricts exhaust flow, limiting the potential of the B58 engine. The MST catless downpipe improves exhaust gas evacuation, resulting in:

• Faster turbo spool and improved boost response
  
• Increased power output when paired with tuning
  
• More aggressive and raw exhaust note
  
• Enhanced engine responsiveness and driving feel

Recommended for Stage 2 setups to maximise performance gains

Installation

• Moderate installation complexity (approximately 1–1.5 hours)
  
• Mechanical knowledge required

Professional installation is highly recommended for best fitment and performance

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

Vehicle Fitment

• Toyota GR Supra A90 / A91 (B58 3.0L)

Also compatible with BMW B58 3.0L engine vehicles including:

• BMW F20 M140i
  
• BMW F22 / F23 M240i
  
• BMW F30 / F31 / F34 340i
  
• BMW F32 / F33 / F36 440i
  
• BMW G30 / G31 540i
  
• BMW G32 640i
  
• BMW G11 / G12 740i
  
• BMW G01 X3 M40i
  
• BMW G02 X4 M40i

What’s Included

• MST Performance Catless Downpipe

Important Notes

• This is a catless (race) downpipe intended for off-road or motorsport use only
  
• A check engine light (CEL) may occur without ECU tuning
  
• ECU tuning is recommended to optimise performance and avoid faults
  
• Ensure compliance with local regulations before installation

Why Choose Sequential Racing?

Sequential Racing supplies proven performance upgrades for GR Supra and BMW platforms, offering reliable solutions for enthusiasts seeking real performance gains. The MST Catless Downpipe is a cost-effective upgrade for unlocking the full potential of the B58 engine.

• Ideal upgrade for Stage 2 performance builds
  
• Improved turbo efficiency and responsiveness
  
• Aggressive sound and increased power potential

Upgrade your Toyota GR Supra A90/A91 with the MST Performance Catless Downpipe and experience sharper throttle response, faster spool, and a more aggressive exhaust note.