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Performance Catted Downpipes

Improves exhaust flow for more power while remaining fully EPA compliant
Mfg Part #
11-041-LATE
ECS Part #
ES#4147624
Brand
Active Autowerke
2299.00
Availability: Direct Ship, Ship ETA Nov 25, 2020
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Product Details

A turbo impeller wheel speed is mostly limited by the exhaust backpressure within the system. If one could eliminate some or most of this exhaust back pressure, the turbo will spool that much faster and effortlessly resulting in quicker engine revs and increased HP. The Active Autowerke Signature downpipes are designed with the intent to maximize power. These downpipes are created with the least amount of restrictions possible by utilizing a full 3" piping throughout with the least amount of bends possible. What you will experience is a faster, more responsive engine because the turbo impeller now has the ability to spool that much faster. The end result is more power. Made from 304 stainless steel the handmade construction process ensures a robust and durable exhaust that will provide trouble free performance with the longevity to match.

This variant includes a 4.5" high flow GESI catalytic converter that will NOT produce a CEL!  GESI has stamped N/GBL/4389/mmyy on these cats as required by the EPA. The number represents the following: N (New) GBL: GESI’s Manufacturer Code / 4389 is the part number registered with the EPA / mmyy: Manufacturing Month and Year.  GESI can correctly claim that this specific technology has met test protocol 40CFR86, and has been verified by a third party laboratory, and most importantly has been registered with the EPA.

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.

This Part Fits the Following Vehicles

Make Model Submodel Engine
BMW F06 650i N63 4.4L
BMW F07 550i N63 4.4L
BMW F10 550i N63 4.4L
BMW F12 650i N63 4.4L
BMW F15 X5 xDrive50i N63 4.4L
BMW F16 X6 xDrive50i N63 4.4L
BMW F85 X5 M S63 4.4L
BMW F86 X6 M S63 4.4L
*The above product applications have been written by ECS Tuning. All warranties, product application, fitment, and performance are the responsibility of ECS Tuning. For additional information see the terms of use.

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

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