Exhaust System Downpipe w/ heat shield - BMW B58 engine F, G Chassis & Toyota Supra

Maximize your B58 engine's performance with the High-Flow Downpipe with Integrated Heat Shield, engineered to unleash hidden horsepower and transform your driving experience. Whether you're behind the wheel of a BMW or Toyota Supra, this premium downpipe upgrade significantly enhances exhaust flow, turbo response, and overall sound – all while protecting surrounding components with a built-in thermal shield.

Compatible Models:

• BMW F30/F32 340i, 440i

• BMW G20/G22 340i, M340i

• BMW G29 Z4 M40i

• Toyota GR Supra A90/A91 (2020+)

Key Features:

• High-Flow Design
  Drastically reduces exhaust backpressure and improves turbo spool, delivering noticeable gains in horsepower, torque, and throttle response.

• Integrated Heat Shield
  Built-in stainless steel heat shielding protects surrounding engine bay components from excessive heat, helping maintain lower underhood temperatures and better long-term durability.

• Precision Fit for B58 Engine
  Engineered specifically for the B58 3.0L turbocharged inline-6 engine platform across both BMW and Toyota applications, ensuring exact fitment and performance.

• Catted or Catless Options
  Choose from high-flow catted for emissions-friendly performance or catless for maximum flow and aggressive sound (track use only).

• Mandrel-Bent Stainless Steel Construction
  Made from T304 stainless steel for excellent corrosion resistance, heat tolerance, and long-lasting durability under high-performance conditions.

• Improved Exhaust Note
  Delivers a deeper, more aggressive tone under throttle without unwanted drone – especially noticeable with upgraded cat-back exhausts.

• Supports Higher Tuning Potential
  Ideal for vehicles running a Stage 2+ tune or higher. Combined with ECU tuning, expect gains of +40–70 HP, depending on other supporting modifications.

• Bolt-On Installation
  Direct replacement for the factory downpipe. All necessary hardware included. Professional installation and ECU tuning strongly recommended.

Unleash the full potential of your B58-powered BMW or Supra with this high-performance downpipe upgrade — combining power, sound, and thermal efficiency in one must-have component.