BMW N20 Downpipe / Pre-Cat Delete Pipe – Stainless Steel

More performance, better flow – the perfect solution for tuning and motorsport

This high-quality stainless steel downpipe replaces the pre-catalytic converter on all BMW models with the N20 engine. It delivers a noticeable power increase and improved turbo response. Built from premium-grade 1.4301 stainless steel, it offers optimal thermodynamics and long-lasting durability even under high thermal loads.

Compatible BMW Models:

• BMW F30 320i / 320i xDrive
• BMW F30 328i / 328i xDrive
• BMW F31 Touring
• BMW F32 428i Coupé / 428i xDrive
• BMW F34 328i Gran Turismo

Technical Specifications:

• Design: Downpipe / Pre-Cat Replacement Pipe
• Outer diameter: 4" – fits OEM exhaust system
• Material: Stainless steel 1.4301 (V2A – corrosion resistant)
• 2x Lambda sensor ports (OEM compatible)
• Finish: Brushed, heat-resistant surface
• Plug & Play – no welding or modifications required
• Use: For motorsport, track days or export only

Key Benefits:

• Power gain of up to 20 HP
• Improved exhaust flow and turbo spool
• Lower exhaust gas temperatures due to reduced backpressure
• Faster boost build-up
• Perfect fit on original flanges
• OEM lambda sensors can be reused
• Highly durable under high temperature and corrosion conditions

Included in Delivery:

• 1x Stainless steel downpipe / pre-cat delete pipe
• 2x Pre-installed lambda sensor ports
• Gaskets and mounting hardware (depending on model)

Important Note:

This product is not approved for public road use. It is intended for motorsport, off-road or export applications only. Please check local regulations before installation.

Conclusion:

The BMW N20 downpipe is the perfect choice for anyone seeking more power, reduced backpressure, and improved driving dynamics. Whether on the track or in a high-performance build – this is premium engineering made to perform.