ACTIVE AUTOWERKE N20 CATTED DOWNPIPE | BMW F3X M228I 328I 428I

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ACTIVE AUTOWERKE S58 DOWNPIPES GESI CAT | BMW F97 F98 X3M X4M

PLEASE INCLUDE YOUR VIN AS THESE CARS HAVE EITHER A N20 OR N26 ENGINE - THIS DOWNPIPE WILL NOT FIT A N26 ENGINE.

BMW introduced a new Valvetronic, single turbo version of its direct-injection engine for the F-Chassis models beginning in 2012. The Active Autowerke N20 downpipe for the 228i, 328i, and 428i 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 downpipe in the N20 is quite restrictive, which results in slower exhaust gases and a slower turbo spool.

The Active Autowerke F-Chassis N20 Signature downpipe utilizes 3.5-diameter stainless steel piping in order to provide more power, a quicker spool, and extreme durability. This variant includes a 4" ultra high flow GESI catalytic converter that will NOT produce a CEL

The GESi G-Sport High Output Catalytic Converter features full 304 stainless steel construction, including the substrate. GESi HO-Series Gen 2 Catalytic Converters are EPA registered and compliant in 49 states and fully OBD2 compliant. GESi proprietary precious metal loading technology ensures greatly reduced emissions, eliminating most "Check Engine Lights". These high-flow catalytic converters outperform stock converters and provide a reliable solution to the most common catalytic converter problems.

The GESi HO-Series Catalytic Converters are rated for engines putting out between 500 and 850 horsepower while maintaining a high flow capacity. The reduced back-pressure from this high-flow catalytic converter will allow you to maximize your engine's horsepower without harmful emissions. Say goodbye to Check Engine Lights and failed emissions tests!

Please Note: These catalytic converters are not legal for use on vehicles registered in the state of California as a result of California Vehicle Code Section 27156 and 38391.

FEATURES:

• NO CEL when using this downpipe
• Designed to be as unrestrictive as possible
• GESI EPA registered high flow and fully OBD2 compliant
• High flow 4" 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
• Ultra high flow 400 cells per square inch catalyst
• EPA compliant for use on OBD2 vehicles (1996 and newer) except in California
• 304 stainless steel substrate is furnace braised to the mantle for outstanding durability
• GESI proprietary precious metal loading technology ensures greatly reduced emissions
• 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 25,000 Mile Warranty on the Catalytic core
• Made in Miami, Florida

VEHICLE FITMENT CHART: