Armytrix Catless Downpipe – Toyota GR Supra A90/A91 (B58 3.0L)

Unlock maximum performance and raw turbo sound from your Toyota GR Supra with the Armytrix Catless Downpipe. Designed to eliminate factory exhaust restrictions, this high-flow upgrade significantly improves turbo efficiency, throttle response, and overall power output—delivering a true motorsport-inspired driving experience.

Built from premium T304 stainless steel with precision TIG welding and CNC-machined flanges, this downpipe offers both durability and exact fitment. The result is a clean, bolt-on solution that enhances performance while producing an aggressive, unfiltered exhaust note.

Key Features

• Armytrix catless downpipe for Toyota GR Supra A90/A91 B58
  
• Full catless design for maximum exhaust flow
  
• Improves turbo spool and throttle response
  
• Increases horsepower and torque potential when tuned
  
• Constructed from high-grade T304 stainless steel
  
• Precision TIG welding for strength and reliability
  
• CNC-machined flanges for accurate, leak-free fitment
  
• Aggressive exhaust tone with enhanced turbo sound
  
• Direct bolt-on installation with no cutting or welding required

Performance & Sound

The factory downpipe restricts exhaust flow, limiting the potential of the B58 engine. The Armytrix catless design removes this bottleneck, delivering:

• Faster turbo spool and improved boost response
  
• Higher power output when paired with tuning
  
• More aggressive exhaust note with pronounced turbo sound
  
• Enhanced crackles and pops on tuned setups

This upgrade is ideal for performance-focused builds looking for maximum flow and sound.

Build Quality & Engineering

Engineered for high-performance applications, the Armytrix downpipe is built to withstand demanding conditions.

• T304 stainless steel construction for heat resistance and durability
  
• Smooth internal flow design to minimise turbulence
  
• Precision fitment for hassle-free installation
  
• Designed for long-term reliability under high boost

Installation

• Direct bolt-on design using factory mounting points

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 Supra A90 (MK5) – 2020+
  
• Toyota GR Supra A91 – 2020+

Engine: B58 3.0L Turbocharged Inline-6

What’s Included

• Armytrix Catless Downpipe

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
  
• A check engine light (CEL) will occur without proper ECU tuning
  
• ECU tuning is recommended to optimise performance and eliminate CEL

Why Choose Sequential Racing?

Sequential Racing supplies premium performance upgrades for GR Supra enthusiasts, offering trusted brands like Armytrix for proven results. This catless downpipe is one of the most effective upgrades for unlocking the full potential of the B58 engine.

• Maximum performance and exhaust flow
  
• Aggressive motorsport-inspired sound
  
• High-quality construction with precise fitment

Upgrade your Toyota GR Supra A90/A91 with the Armytrix Catless Downpipe and experience faster spool, increased power, and an uncompromising exhaust note.