High Flow T304 Stainless Exhaust Downpipe for Toyota Supra A90 and BMW G20 M340i

Upgrade turbo response, exhaust flow, and overall performance on your Toyota Supra A90 or BMW M340i platform with the STRATEC High Flow Stainless Steel Exhaust Downpipe. Designed as a direct replacement for the restrictive factory downpipe, this upgrade improves airflow, reduces backpressure, and delivers sharper throttle response with a more aggressive exhaust character.

Built for worldwide applications, this downpipe is engineered to handle high boost and heat while maintaining long-term durability—making it ideal for both daily-driven cars and performance builds.

Performance Benefits

• Reduces exhaust backpressure for improved turbo efficiency

• Faster turbo spool and stronger mid-range power

• Sharper throttle response

• Deeper, sport-oriented exhaust tone

• Improved engine breathing under load

Construction and Engineering

• Material: T304 stainless steel

• Design: High-flow straight-through exhaust routing

• Welding: Precision TIG welded for strength and durability

• Finish: Brushed stainless steel

• Build: Performance-oriented layout optimized for turbocharged applications

Sound and Driving Characteristics

Cold starts are louder and deeper than factory. During cruising, the tone remains sporty with controlled volume. Under acceleration, expect an aggressive exhaust note with increased turbo presence—designed to enhance performance sound without excessive harshness.

Installation

Direct bolt-on replacement using factory mounting locations. No cutting or welding required. Fully reversible to stock.
Professional installation recommended. ECU tuning recommended for optimal performance.

What’s Included

T304 stainless steel exhaust downpipe
Required mounting hardware

Fitment (Worldwide Models)

• Toyota Supra A90 3.0T (2019–2023)

• BMW G20 M340i 3.0T (2019–2023)

• BMW G29 Z4 M40i 3.0T (2019–2023)

Engine: 3.0T Turbocharged Inline 6