3 Exhaust Decat Downpipes & 2nd Decats - BMW 3 4 Series F80 F82 M3 M4

Manufactured from highest quality T304 grade stainless steel
2.5'-3' bore to directly replace the original catalytic converters
Mandrel bent and fully TIG welded for strength and durability
Free flowing to get the most from the twin turbo S55 engine
Sold for off road and track use only