BMWM135iN55Downpipe200CellHi-FlowSportsCat235i335i435i|MTCMotorsport

MTC Motorsport BMW M135i M235i 335i 435i Stainless Steel Downpipe with Hi-Flow 200 Cell Sports Cat and Heat ShieldThe N55 downpipe is machined from T304 high-grade stainless steel and are tig welded in houseSharper throttle response due to faster spool of the turboNoticeable power gains and a much more aggressive exhaust note which sounds truly amazingProduces lower temperatures and less exhaust backpressure due to the relief of the turbocharger. Also, the cylinder charge is increasedThere is also a substantial weight saving in comparison to the factory catalytic converterMandrel-bent for better gas flow and maximum internal size to ensure ultimate performance without the loss of mid-range torque. Finished in brushed stainless steelThis downpipe will fit the following models:1 Series (F20) M135i, M135i XDrive 235 kW + 240 kW N55 engine, built from 07/20131 Series (F21) M135i, M135i XDrive, 235 kW N55 engine, built from 07/20132 Series (F22) M235i, Coupe, 240 kW N55 engine, built from 07/20132 Series (F23) M235i, Cabriolet, 240 kW N55 engine, built from 07/20132 Series (F87) M2, 272 kW N55 engine, built from 07/20133 Series (F30) 335i, 335iX, Sedan, 225 kW + 240 kW + 250 kW N55 engine, built from 07/20133 Series (F31) 335i, 335iX Touring, 225 kW + 240 kW + 250 kW N55 engine, built from 07/20133 Series GT (F34) 335i, 335iX, Gran Turismo, 225 kW + 240 kW + 250 kW N55 engine, built from 07/20134 Series (F32) 435i, 435iX Coupe, 225 kW + 250 kW N55 engine, built from 07/20134 Series (F33) 435i, 435iX, Cabriolet, 225 kW + 250 kW N55 engine, built from 07/20134 Series (F36) 435i, 435iX Gran Coupe, 225 kW + 250 kW N55 engine, built from 07/2013This downpipe will fit all N55 engines from July 2013+. It will not fit the 135i pre July 2013.We have tested this product and found increases of 10-15bhp.Professional installation is recommended as some exhausts sit slightly different from others and can be tight although the feedback we have received from this product is that it is very easy to fit. If you have a later model car with OPF/PPF filters they will need coding out so you will need to find a tuning company who can do this.Note: we cannot guarantee that this will pass an MOT test.