Order Link

https://x-ph.com/mst-performance-b58-catted-downpi...

Give your BMW B58 3.0L more sound and performance with the world's biggest and very best high-flow catted downpipe, all while providing emissions, clean performance, and NO check engine light.

FEATURES:
＊World's biggest tube.
＊ 4.5″ 304 stainless steel.
＊ 6" 300-cell high flow cat.
＊ EURO 6 tri-metallic catalytic converter.
＊ Converter will support 800HP+
＊ NO catalyst generated check engine light.
＊ Clean emissions, good for the environment.
＊ Gains from 18-22hp.