Active Autowerke Active Catted Downpipe BMW N55 F3X M235I 335I 435I F87 M2

ACTIVE AUTOWERKE BMW N55 DOWNPIPE

BMW introduced a new valvetronic, single turbo version of its direct-injection engine for the F-Chassis models 2014 and up. The Active Autowerke N55 downpipe for the M235i, 335i, 435i and M2 helps unleash some of the potential that is restricted by the OEM downpipe.

Turbochargers are powered by spent exhaust gases created during the combustion process. The quicker these gases are evacuated, the better. Unfortunately, the factory down pipe in the N55 is quite restrictive, which results in slower exhaust gases and slower turbo spool.

The Active Autowerke F-Chassis N55 Signature down pipe utilizes 3.5 diameter stainless steel piping in order to provide more power, quicker spool, and extreme durability. 

This variant includes a 4.5" high flow Active catalytic converter that will NOT produce a CEL

Features:

• NO CEL for catalytic efficiency when using this downpipe
• Designed to be as unrestrictive as possible
• High flow 4.50" GESI cat with 3.50" piping allows for maximum power output
• Quicker turbo spool - improved power over stock
• Rated for 500 to 850 hp applications
• Withstands up to 1500 F
• Can reach operational efficiency within 9 seconds of startup
• Easily bolts-on no cutting or welding required
• Durable construction from TIG welded 304 stainless steel
• Precise fitment
• Made in Miami, Florida
• Ultra high flow 400 cell per square inch catalyst
• Full 304 stainless steel construction
• 304 stainless steel substrate in the catalytic converter 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

Fitment:

 ALL F-CHASSIS N55 CARS FROM 09/2013 UP ONLY

• F20/F21 BMW M135i (incl X-drive) Production date after 07/2013
• F22 BMW M235i Production date after 07/2013
• F30 BMW 335i (incl X-drive) Production date after 07/2013
  
• F32/F33/F36 BMW 435i 2013+
  
• F87 BMW M2 2015+