Details
Active Autowerke B58 Downpipe w GESI G-Sport Cat (2016+ M240i 340i 440i) - 11-062
SHIPPING NOW. Please note that we install the gasket into the downpipe
flange as some customers were damaging the gasket on installation.
BMW introduced a new valvetronic, single turbo version of its
direct-injection engine for the later F-Chassis models beginning in 2016.
The Active Autowerke B58 downpipe for the 340i and 440i 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 B58 is quite restrictive, which
results in slower exhaust gases and slower turbo spool.
The Active Autowerke F-Chassis B58 Signature down pipe utilizes 4.5
diameter stainless steel piping in order to provide more power, quicker
spool, and extreme durability. It then tapers down to 3.5" where we've
incorporated a stainless flex joint and then down to 80mm to meet the OEM
exhaust system. We never drop the diameter less than the stock diameter of
80mm.
This variant includes a 4.5" high flow GESI catalytic converter that will
NOT produce a CEL!
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. 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
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 engines horsepower without the 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.
NOTE:
Federal law prohibits the tampering of an emissions control device. Mobile
Source Enforcement Memorandum 1A, allows for aftermarket parts to be used
in the repair or replacement of emissions control systems, provided the
emissions aren't adversely affected. There is no mention or reference to
cell density or converter volume dimension. The GESI catalytic converter
will produce emissions that will meet the standards set by the EPA, not
CARB.
NO CEL when using this downpipe
GESI EPA registered high flow and fully OBD2 compliant
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
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
Ultra high flow 400 cell 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
GESiu00a0proprietary 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
The speed of a turbo's impeller wheel is limited by exhaust back pressure.
A larger down pipe relieves some of this pressure, resulting in quicker and
more efficient spool. With Active Autowerk's Signature downpipe, your B58
can rev quicker, and deliver more horsepower and torque.
Minimizing back pressure while retaining daily drive-ability was the goal
of our B58 downpipe. Owners can now upgrade to a product that is
affordable, reliable, and easy to install.
After months of research and development, our engineers settled on a 4.5
diameter pipe which utilizes the least number of bends possible. The large
volume helps the turbo spool as quickly as possible by eliminating back
pressure during spool up. We are ushering in a new era in performance where
we maintain air control standards without significant losses in power by
using the GESI super high output catalytic converter in our signature
downpipe.
Constructed entirely from 304 stainless steel with 1.5MM wall thickness, we
are confident that you'll be pleased with how robust and durable this down
pipe is. Trouble-free installation and a long lifespan ensure that you'll
enjoy many miles of performance with your B58!