ACTIVE AUTOWERKE S58 DOWNPIPES W GESI CAT | BMW G80 M3 G82 M4

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ACTIVE AUTOWERKE B46 CATTED DOWNPIPE | BMW G2X 230I 330I 430I

Active Autowerke is proud to release the advanced Active Autowerke Signature Catted Downpipes with GESI G-Sport cats for the BMW G80 M3 and G82 M4. While these cars have received rave reviews for their performance, the sound is muffled leaving the driver to wonder if they are really driving a BMW M-car. In order to solve this, Active Autowerke has created a full exhaust system for the G80/G82 which comprises this mid-pipe, a rear axle-back valved exhaust and a set of GESI catted downpipes. Together, this remake of the stock exhaust results in a G80/G82 with an amazing sound. You will feel like you are driving a true M-car again.

BMW introduced a new Valvetronic, single turbo version of its direct-injection engine for the later F-Chassis models beginning in 2016 and continues into the G-Chassis models - the evolution to the S58 engine continues with the twin-turbo variant used in the M-series vehicles. The Active Autowerke S58 downpipes for the G80 M3 and G82 M4 help unleash some of the potentials that are restricted by the OEM downpipes.

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 S58 is a bit restrictive, which results in slower exhaust gases and a slower turbo spool. As the first step of the Active Autowerke G80 M3/M4 collection, we are introducing our catted signature downpipe.

The Active Autowerke G80/G82 S58 Signature downpipe utilizes 3-inch diameter stainless steel piping in order to provide more power, a quicker spool, and extreme durability. We've incorporated stainless flex joints and then down to 70mm to meet the OEM exhaust system. We never drop the diameter to smaller than the stock diameter of 70mm.

The GESi G-Sport Ultra High Output Catalytic Converter features full 304 stainless steel construction, including the substrate. GESi UHO-Series Catalytic Converters are EPA registered and compliant in 49 states and fully OBD2 compliant, perfect for use on 1996 and newer vehicles.
The GESi UHO-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!

FEATURES:

• NO CEL when using this downpipe
• GESI EPA registered high flow and fully OBD2 compliant
• The most advanced cats produced by GESI today
• Casted upper stainless steel V-Band for precise fitment
• 4.50" diameter piping allows for maximum power output
• Quicker turbo spool
• Rated for 500 to 850 hp applications per cat
• Withstands up to 1500 F
• Can reach operational efficiency within 9 seconds of startup
• Easily bolts-on 2013 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

VEHICLE FITMENT CHART: