Performance Motorsport Parts Sports decats are designed to replace the stock catalytic converter removing all restriction, Our Performance decats allow better exhaust flow resulting in increased power and torque while also improving throttle responsiveness. ---Manufactured from high quality T304 grade polished stainless steel ---Mandrel bent and fully TIG welded for strength and durability ---Free flowing catalyst replacement to get the most from the M47 engine ---Built in flexi joint to help reduce strain on your exhaust ---Sold for off road and track use only Compatible with: BMW 1 Series E87 118D & 120D (M47 engine) 2004-2007 models Please Note: This item is designed to remove the cat from the standard vehicle. This item will NOT remove the DPF. Modifications will be required to fit this item to vehicles with a DPF.