WagnerTuning BMW F-Series B58 HJS Cat Downpipe Kit
Downpipe Kit with 200CPSI Racing catalyst for BMW M140i M240i 340i & 440i
made out of high quality stainless steel 1.4301 (SS304)
complete Ø3,5 and adapter for stock exhaust
300CPSI EU6 HJS-catalyst (ECE approval)
100% perfect fit, replace OEM
less thermal load on the turbocharger
more power by reducing back pressure
significantly more torque