The Downpipe-Kit fits in to:

BMW M135i F20 / F21
BMW M235i F22/F23
BMW 335i(x) F30 / F31 / F34
BMW 435i F32 / F33
 

Made out of high quality stainless steel 1.4301 (SS304)

• 100% perfect fit, replace OEM
• less thermal load on the turbocharger
• more power by reducing back pressure
• significantly more torque
• 200cpi Catalytic Converter (without any diagnostic error)

No ECU engine management light errors