Active Autowerke Catted Downpipes (GESI CAT) - BMW / S58 / G80 / M3 / G82 / M4 / G87 / M2 (11-085) StillenShipping_125 this hood reduces weight by

this hood reduces weight by up to 50% compared to the original panel

- 2-3/4 inch mandrel-bent aluminum tubes replace stock restrictive air box and optimize the air flow with excellent heat dissipation and long lasting durability

The 340 is also perfect for use as a universal replacement for applications that require more flow to support forced air power adders such as turbo and supercharged applications

M3 2001-06 (17U-01-1000-6)

Active Autowerke Catted Downpipes (GESI CAT) - BMW / S58 / G80 / M3 / G82 / M4 / G87 / M2 (11-085) StillenShipping_125 this hood reduces weight byActive Autowerke presents the Signature Catted Downpipes featuring GESI G Sport catalytic converters, designed for the BMW G80 M3, G82 M4, and G87 M2 models equipped with the S58 engine. Optimized 3" diameter stainless steel piping enhances exhaust flow without dropping below the factory 70mm diameter. Incorporates 4. 5" ultra high flow GESI catalytic converters compliant with EPA regulations (except California), eliminating Check Engine Lights (CEL).