3 Exhaust Decat Downpipes - BMW 3 / 4 Series F80 M3 / F82 M4 14-18

Made from polished T304 grade stainless steel
Free flowing catalyst replacements to get the most from the twin turbo S55 engine
Designed to replace the first pair of restrictive catalytic converters
Mandrel bent and fully tig welded for strength and durability
Sold for off road and track use only