Description
Fabspeed’s Sport Cat Downpipe for the 335i/435i uses a German 200-cell HJS EURO 6 tri-metallic catalyst and CNC mandrel-bent T304L stainless construction to reduce backpressure while maintaining emissions control. It’s a direct bolt-on that requires no cutting or welding and trims about 2lb versus the OEM section for lighter, more reliable performance.






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