B48/B46 Downpipes for BMW and Toyota Supra 2.0T

The BMW B46 and B48 engines are popular among car tuners due to their strong foundation. These turbocharged four-cylinder engines are a robust platform for modifications. You can enhance power, sound, and efficiency using B48 & B46 downpipes from Palenon Performance.

Upgrade your BMW or Supra with high-performance downpipes. Whether you need a B46 downpipe, B46 Supra downpipe, B48 catless downpipe, B48 catted downpipe, or a BMW B48 downpipe, our products significantly improve turbo response, exhaust flow, and driving performance.

Explore Our B48/B46 Downpipes Collection

We offer both catless and catted downpipes for B46 and B48 engines. The high-flow catted downpipe is a premium option for those who want performance while keeping emissions control.

B48 Downpipes (Latest Versions – Version 4 & Version 5)

We now offer the latest upgraded designs for the B48 engine:

• Version 4 – High-flow, improved internal diameter
• Version 5 – Latest generation with optimized bends and maximum flow

(Available in both Catted & Catless styles)

Version IV B48/B46 Racing Downpipes – Palenon Performance

Version V B48/B46 Racing Downpipes – Palenon Performance

BMW & Supra B46 Downpipe

Choose between catted and catless based on performance and local regulations.

B46 Catted Downpipe:
Includes a high-flow catalytic converter. Reduces odor, keeps emissions in control, and still offers great performance.

B46 Catless Downpipe:
Maximum exhaust flow, aggressive sound, and higher horsepower gains. Not legal in some regions.

Fitment Guide (B46/B48 Engines)

• 2016–2020 F20 BMW 120i / 125i
• 2016–2020 F22 BMW 220i / 230i
• 2016–2020 F30/F31/F34 BMW 320i / 330e / 330i
• 2016–2020 F32/F33/F36 BMW 420i / 430i
• 2020–2024 G42 BMW 230i
• 2020–2024 G20 BMW 320i / 330i
• 2020–2024 G21 BMW 320i / 330i Wagon
• 2020–2024 G22/G23/G26 420i / 430i
• 2016–2020 G30 BMW 530i
• 2017–2023 G32 BMW 630i
• 2016–2020 G11/G12 BMW 730i / 740e
• 2019–2025 Toyota Supra 2.0T

Benefits of Upgrading B46/B48 Downpipes

More Horsepower and Torque
Reduced backpressure leads to better exhaust flow and gains of 15–27whp with tuning.

Improved Throttle Response
Faster turbo spool and more immediate power delivery.

Enhanced Exhaust Sound
Gives your BMW or Supra a deeper, more aggressive exhaust tone.

High-Flow vs Catless

High-Flow Catted Downpipe
• Cleaner emissions
• Reduced odor
• Excellent balance of performance & sound

Catless Downpipe
• Maximum performance
• Loud and aggressive
• Not emission-legal in some areas

Why Choose Palenon Performance?

• Premium stainless steel
• TIG welded, CNC flanges
• Smooth mandrel bends
• Lifetime warranty
• Designed for perfect OEM fitment
• CEL Eliminator Kit available

Customer Support

For questions or support, email: sales@palenonperformance.com
We also offer a loyalty and dealership program.

FAQs

1. Difference between B48 catless & catted downpipe?
Catless = max airflow, more power.
Catted = cleaner emissions with strong performance.

2. Can a B48 downpipe fit a B46 engine?
No — both engines use different fitment designs.

3. How much horsepower do these downpipes add?
Expect 16–27 horsepower depending on tuning and other modifications.