Turbo-back with Secondary Hi-Flow Sports Cats - 1 Series 135

Requires a stage 2 ECU remap

-LH Primary Catalyst Delete Downpipe -RH Primary Catalyst Delete Downpipe -LH Secondary Hi-Flow Sports Catalyst Assembly -RH Secondary Hi-Flow Sports Catalyst Assembly -Centre Silencer Assembly -Rear Silencer Assembly -Universal Tip Twin 80mm GT80 Pipe Diameter: 2.50-inch (63.50mm) BMW 1 Series 2008 to 2010 1 Series 135i Coupé E82 and Cabriolet E88 (N54)