CTS TURBO BMW F90 M5/M5C & BMW F91/92/93/ M8 HIGH-FLOW CATS DOWNPIPE SET

CTS Turbo F90 M5/M5C & F91/92/93/ M8 High-Flow Cats are made to maximize exhaust flow for highest power gains. Do not compromise performance and sound with factory parts.
 
Designed using the latest in CAD technology; this part is made to fit perfectly in place of restrictive factory catalytic converter. Manufactured from CAST T304 stainless steel; hand TIG welded and back-purged to ensure years of reliable performance.
 
In addition to unleashing the power and performance of your 4.4 Twin Turbo, our High-Flow Cats will make your vehicle sound like it really should. When installed with factory exhaust it produces a louder and deeper growl with much more pronounced exhaust “crackle” on downshift. While up-shifting you will enjoy a confident “punch!” as you bang through all 8 gears. The sound will be even louder if you already have an aftermarket exhaust system.
 
Features:
80mm or 3.15″ diameter piping
Cat size: 110mm OD x 90mm Long or 4.33″ OD x 3.54″ Long
Includes 200 cell sport catalytic converter
Designed and tested on a real car in the real world
Cast T304 stainless steel, TIG welded back-purged construction
Replaces restrictive factory catalytic converter
Great power upgrade with uncompromising performance
Incredible sporty exhaust sound, subtle when cruising
No drone with factory exhaust
BMW M5 F90 4.4 V8 BiTurbo
BMW M8 F91 4.4 V8 BiTurbo
BMW M8 F92 4.4 V8 BiTurbo