Active Autowerke Downpipes w/ Active Cat BMW M2C | M3 | M4 F80/F82/F87C S55

For over 30 years, Active Autowerke has been the one to turn to for high quality BMW performance products. Committed to enhancing the performance of BMWs through the highest quality products is what Active Autowerke is all about. The newest addition to our BMW F87 M2C, F80 M3 and F82 M4 Collection, these F8X catted downpipes are a true testament to our outlook on creating innovative products with performance in mind. Developed for precise fitment on the F87 M2C, F80 M3 and F82 BMW M4, the difference in performance will be noticeable the moment you leave your driveway!

This variant includes a pair of 4" ultra high flow Active catalytic converters that will NOT produce a CEL!

Features:

• NO CEL for catalytic efficiency when using this downpipe
• Quicker turbo spool and response
  
• Less restrictive, more free flowing
• Improved low end and mid range performance as well as higher boost levels
• Casted upper stainless steel V-Band for precise fitment
• Withstands up to 1500F
• Can reach operational efficiency within 9 seconds of startup
• Easily bolts-on with no cutting or welding required
• Accepts OEM O2 sensor heat shield
• Durable construction from TIG welded 304 stainless steel
• Precise fitment
• Ultra high flow 400 cell per square inch catalyst
• 304 stainless steel substrate is furnace braised to the mantle for outstanding durability
• Ideal for Forced Induction Applications with no loss of HP
• Both passengers and drivers are safe from harmful emissions and noise
• Covered by 5 Year / 50,000 Mile Warranty (on shell and tube ends) and 2 year / 25,000 Mile Warranty on the Catalytic core
• Made in Miami, Florida