GT Downpipe cat deleted for BMW N55 135i / 335i 2011-13

For maximum exhaust flow and quicker turbo spool up, Each mandrel bent down pipe is a bolt-on application that will mount to the stock location. All Downpipe applications are made from polished SUS304 stainless steel piping. Material: SUS304 Net weight (lbs): 8 Design: High flow Finish: B-Blast Primary Pipe o/d (mm): 100 Pipe thickness (mm): 2.0 Flange style inlet: V-banded Flange style outlet: 2 bolt O2 sensor bung: Default Cat converter: Test pipe Cat Deleted Compatible model: All BMW N55 engine 135i / 335i What is in the box: GT Downpipe, Gasket, Promotional