Downpipe – BMW B58 & Toyota Supra 3.0L

Unleash the full potential of your BMW or Toyota Supra with the EPC 5” Catless B58 Downpipe. Engineered to drastically improve exhaust flow and turbo efficiency, this premium performance mod delivers maximum horsepower, torque, and an aggressive exhaust note that transforms your driving experience.

Built from high-grade stainless steel with smooth-radius mandrel bends, this downpipe is designed for durability under extreme heat and stress, making it ideal for both daily driving and high-performance builds.

⚙️ Key Features & Benefits:

✅ Massive 5-Inch Diameter
Reduces backpressure and improves turbo response for serious gains in performance.

✅ Catless Design for Maximum Power
Removes the restrictive factory catalytic converter, delivering increased horsepower and a louder, more aggressive tone.

✅ High-Quality Stainless Steel Construction
Resistant to heat, corrosion, and cracking for long-lasting performance.

✅ Direct Bolt-On Fit
Designed for seamless integration with your OEM or aftermarket exhaust system. No cutting or welding required.

✅ Flex Section Included
Allows for expansion and movement, helping reduce stress on the system for added reliability.

✅ Performance Gains

• Up to +30 HP with a tuned stock turbo

• Even greater gains with upgraded turbos

✅ Drone-Free Engineering
Mandrel-bent piping ensures optimized airflow with minimal resonance.

✅ Lifetime Warranty + 30-Day Returns
Buy with confidence—backed by a lifetime warranty on defects and fitment.

✅ Fast Shipping
All orders ship within 1–2 business days.

🚗 Vehicle Fitment:

BMW B58 Engine Applications:

• 2015+ BMW M240i / M240i xDrive (F22/F23)

• 2016–2019 BMW 340i / 340i xDrive (F30/F31)

• 2016+ BMW 440i / 440i xDrive (F32/F33/F36)

• 2016+ BMW 540i / 540i xDrive (G30)

• 2016+ BMW 740i / 740i xDrive (G11/G12)

• 2017–2020 BMW X3 M40i (G01)

• 2017–2020 BMW X4 M40i (G02)

• 2020+ BMW M340i (G20/G21)

Toyota Applications:

• 2019+ Toyota GR Supra 3.0L (A90/A91)

🛠️ Fits both Left-Hand Drive (LHD) and Right-Hand Drive (RHD) models

💬 Why Choose EPC?

EPC is known for delivering track-tested, street-proven performance parts. This 5” catless downpipe is no exception—offering incredible value, quality construction, and real-world power gains for any B58 platform.

Ready to unlock more power and a true performance sound?
🛒 Add the EPC 5” Catless Downpipe to your build today.