Designed in-house by Direnza engineers, our decat downpipes are a direct replacement for the stock BMW downpipe. Engineered to not only improve power and torque but also throttle response on the M340i/M440i. Manufactured from T304 grade brushed steel. Fully TIG welded and feature CNC machined flanges.
Ceramic coated for additional heat protection. Replaces the restrictive catalytic converter to increase gas flow.This item is in the category "Vehicle Parts & Accessories\Car Tuning & Styling\Performance Exhaust\Performance Front/Down Pipes". The seller is "direnza*" and is located in this country: GB.
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