BMW E92 335XI Schmiedmann front catalyst replacements downpipes

Schmiedmann front catalyst replacements (downpipes) This system replaces the 2 front catalysts and gives more flow in the exhaust system! the system can not pass the MOT! after installing the system you might get error messages in the cockpit because of wrong lamda values! Anyhow this the downpipes brings a lot of power, and are a “must have“ if you want to get the most out of your BMW turbo engines! The system is handmade of 100% stainless steel, and has perfect fitment and performanc