BMW N55 F30 335i / F32 435i / F87 M2 Catless Race Downpipe

The Palenon Performance N55 race downpipe removes the restrictive factory catalyst on F-chassis N55 BMWs for faster turbo spool, more power and torque, and a louder, more aggressive exhaust note.

Why you need it

The OEM downpipe cat limits flow and adds backpressure. Upgrading is the key step for Stage 2+ tuning; Palenon quotes 25-30 hp depending on tune and fuel, with more volume at full throttle and cold starts.

Fits

• 2013-2015 BMW 335i and 335i xDrive (F30)
• 2013-2016 BMW 435i and 435i xDrive (F32)
• 2013-2016 BMW M135i (F20 / F21)
• 2015-2018 BMW M2 (F87, N55)
• 2014-2016 BMW M235i and M235i xDrive (F22)

Features

• Choose EWG (electronic wastegate) or PWG (pneumatic wastegate)
• SS304 stainless steel, TIG welded
• 4in CNC-machined turbo V-band, flaring to match the stock midpipe V-band
• Smooth radius bends to reduce turbulence
• Two O2 sensor bungs placed to reuse OEM sensors without stretching wires
• Optional CEL delete kit (select in options)

Good to know

Intended for off-road and competition use only. Not legal for use on public roads in many areas. A tune or CEL delete is required to prevent check engine lights after installation. Check whether your car has an electronic or pneumatic wastegate before ordering.