High Flow T304 Stainless Exhaust Downpipe for Toyota Supra A90 BMW G20 G29 M340i 3.0T
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
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Reduces exhaust backpressure for improved turbo efficiency
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Faster turbo spool and stronger mid-range power
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Sharper throttle response
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Deeper, sport-oriented exhaust tone
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Improved engine breathing under load
Construction and Engineering
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Material: T304 stainless steel
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Design: High-flow straight-through exhaust routing
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Welding: Precision TIG welded for strength and durability
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Finish: Brushed stainless steel
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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)
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Toyota Supra A90 3.0T (2019–2023)
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BMW G20 M340i 3.0T (2019–2023)
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BMW G29 Z4 M40i 3.0T (2019–2023)
Engine: 3.0T Turbocharged Inline 6
Pairs well with
Ships within 1-2 business days.
Free shipping & returns
High Flow T304 Stainless Exhaust Downpipe for Toyota Supra A90 BMW G20 G29 M340i 3.0T
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FAQs
Please read our FAQs page to find out more.
Are OEM products more expensive than aftermarket alternatives?
OEM products might have a higher upfront cost compared to aftermarket parts, but their superior quality and durability often make them a more cost-effective choice over time. Investing in OEM ensures you’re getting parts specifically designed for your vehicle, which can lead to better performance and longevity.
Can I purchase OEM parts online or do I need to visit a dealership?
You don’t need to visit a dealership to get OEM parts. You can conveniently purchase genuine OEM components from authorized distributors and reputable online retailers like Turbo Tech Performance. Our online store provides a wide selection of high-quality parts delivered straight to your door.
Are parts from brands like Mopar, ACDelco, and Motorcraft interchangeable between different vehicle brands?
No, parts from Mopar, ACDelco, and Motorcraft are typically designed for specific vehicle brands. It’s crucial to ensure compatibility with your vehicle’s make and model by checking part numbers and consulting with a knowledgeable expert.
Can I install OEM parts myself, or is it better to have a professional handle it?
While some OEM parts can be installed by DIY enthusiasts, the complexity of installation can vary. For the best results and to ensure proper fitment and performance, we recommend having a trained mechanic install the parts, especially if you’re unfamiliar with automotive repairs.
Do OEM parts come with a warranty?
Yes, many OEM auto parts come with a manufacturer’s warranty that covers defects or issues. Be sure to check the warranty details for each part at the time of purchase, and keep your receipt for any potential warranty claims.