MILLTEK SSXBM1059 Cat-back 90.00 GT BMW 2 Series M240i Coupe (F22 LCI)Description MILLTEK SSXBM1059 Cat back 90. 00 GT BMW 2 Series M240i Coupe (F22 LCI) The Cat Back systems are designed as direct replacements for the original exhaust, offering improved sound and aesthetics. Multiple configurations are available, allowing the owner to select the desired increase in exhaust volume and achieve a more aggressive tone if preferred. Each system is manufactured from 304L Aircraft Grade stainless steel, ensuring durability in