BMW 435i N55 Decat Downpipe – F32 F33 F36 – EWG (2013+)
Unlock serious performance and sound from your BMW N55 with our stainless steel decat downpipe. Perfect for BMW 435i owners and wider N55 platforms, this high-flow catless downpipe is engineered for faster turbo spool, sharper throttle response, noticeable power gains and a more aggressive exhaust note. Fabricated in the UK from premium T304 stainless steel and TIG welded, it is a proven upgrade for anyone searching for BMW 435i N55 decat downpipe, BMW N55 catless downpipe, BMW 435i downpipe F32 F33 F36, BMW N55 EWG downpipe or BMW performance downpipe.
- T304 high-grade stainless steel construction
- TIG welded in-house for strength and durability
- UK-fabricated with 10–12 mm laser-cut flanges
- Mandrel-bent for optimal gas flow and maximum internal diameter
- Faster turbo spool and sharper throttle response
- Noticeable power gains and a deeper, more aggressive exhaust note
- Reduced exhaust backpressure and lower temperatures, improving turbo efficiency
- Significant weight saving versus the factory catalytic converter
This decat downpipe fits all N55 engines from July 2013 onwards (EWG). It will not fit pre-July 2013 135i models. If you need the earlier version, please see our other items.
Compatible BMW models (N55, 07/2013+):
- 1 Series F20: M135i, M135i xDrive, 235 kW + 240 kW
- 1 Series F21: M135i, M135i xDrive, 235 kW
- 2 Series F22: M235i Coupe, 240 kW
- 2 Series F23: M235i Cabriolet, 240 kW
- 2 Series F87: M2, 272 kW
- 3 Series F30: 335i, 335i xDrive Saloon, 225 kW + 240 kW + 250 kW
- 3 Series F31: 335i, 335i xDrive Touring, 225 kW + 240 kW + 250 kW
- 3 Series GT F34: 335i, 335i xDrive Gran Turismo, 225 kW + 240 kW + 250 kW
- 4 Series F32: 435i, 435i xDrive Coupe, 225 kW + 250 kW
- 4 Series F33: 435i, 435i xDrive Cabriolet, 225 kW + 250 kW
- 4 Series F36: 435i, 435i xDrive Gran Coupe, 225 kW + 250 kW
Proven gains and real-world results
We have tested this product and found increases of 10–15 bhp. Customers consistently report that it transforms the car’s character, delivering quicker spool, punchier mid-range and a far more engaging exhaust tone. Feedback has also been that it is very easy to fit, though we still recommend professional installation.
Fitting and support
Professional installation is recommended. For fitting at Nforcd in Warwickshire, request a quote at Sales@nforcd.com.
We also recommend purchasing a lambda (O2) sensor spacer to help prevent an engine light in most cases. These are available in our store.
Why choose this BMW N55 decat downpipe?
If you are searching for BMW 435i decat downpipe, BMW F32 downpipe, BMW F33 downpipe, BMW F36 downpipe, BMW N55 EWG downpipe, BMW 335i downpipe, BMW M235i downpipe, BMW M135i downpipe or BMW M2 N55 downpipe, this UK-made T304 stainless steel catless downpipe delivers the performance, sound and build quality enthusiasts want.
Warranty: This product comes with a lifetime warranty.