Wagner Tuning Catless DownpipeDownpipe Kit without catalyst for BMW M140(x)i M240i 340i 440i & 540i Note: Catted down pipe pictured. Features: made out of high quality stainless steel 1. 4301 (SS304) complete 3,5 and adapter for stock exhaust Without Catalytic Converter 100% perfect fit, replace OEM less thermal load on the turbocharger more power by reducing back pressure significantly more torque Error display in the DME, because removed catalyst converter. Vehicle Fitment:
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