Decat downpipe will improve airflow and improve the turbo spool by massively reducing any back pressure made by the turbo compared to a catted downpipe. Bolt-on stainless steel catless downpipe with an OEM style heatshield.
A stainless steel downpipe for non-Xdrive F series vehicles with an N13 engine. 114i - 116i - 118i - 120i
Made from stainless steel. Really high quality.
Includes Free 5-10 days shipping