Description
Upgrade the performance, efficiency, and turbo response of your truck with the Active Autowerke AFlow EPA-Compliant Catted Downpipes for 2017–2020 Ford F-150 3.5L EcoBoost.
These high-flow downpipes are engineered as a direct replacement for the restrictive factory units, allowing exhaust gases to exit the twin turbochargers more efficiently while maintaining catalytic converters designed to support emissions compliance.
The factory downpipes on the 3.5L EcoBoost are one of the biggest restrictions in the exhaust system. By upgrading to larger-diameter mandrel-bent tubing combined with Active AFlow high-flow catalytic converters, turbo spool improves, exhaust backpressure is reduced, and the engine can produce more horsepower and torque with better efficiency.
This system is ideal for performance builds, daily driven trucks, towing setups, and tuned EcoBoost applications that require both power gains and emissions-conscious design.
Performance Benefits
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Faster turbo spool and improved throttle response
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Increased horsepower and torque potential
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Reduced exhaust backpressure
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Deeper, more aggressive exhaust tone
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Improved efficiency under light throttle conditions
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Supports higher boost and tuned applications
EPA-Compliant Active AFlow High-Flow Catalytic Converters
This version includes a pair of 5-inch Active AFlow super high-flow catalytic converters designed to maintain performance while reducing emissions.
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EPA registered catalytic converters
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OBD2 compliant for 1996+ vehicles
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Designed to prevent catalytic efficiency check engine lights
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Rated for engines up to 950 horsepower
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400 cell high-flow catalyst design
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Stainless steel substrate with furnace-brazed construction
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Proprietary precious metal loading for reduced emissions
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Fast light-off time for quicker operating efficiency
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Withstands temperatures up to 1500°F
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Ideal for turbocharged and forced-induction engines
Note:
Not legal for use on vehicles registered in California.
Federal law prohibits tampering with emissions equipment unless used as a compliant replacement component.
Construction & Design
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3-inch mandrel-bent tubing for maximum exhaust flow
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TIG-welded 304 stainless steel construction
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Precision CNC-cut turbo flanges
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Integrated flex sections for durability
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High-temperature resistant materials
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Corrosion-resistant stainless finish
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Designed for long-term reliability under high heat and boost
Installation Features
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Direct bolt-on replacement
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No cutting or welding required
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Works with factory turbochargers
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Retains factory O2 sensors
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Compatible with stock exhaust systems
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Compatible with aftermarket cat-back exhaust
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Can be installed with standard tools
Warranty
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5 Year / 50,000 Mile warranty on shell and tube ends
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2 Year / 25,000 Mile warranty on catalytic core
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1 Year warranty on downpipes
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Warranty valid for original purchaser only
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Excessive burble tunes may void catalytic core warranty
Vehicle Fitment
2017 Ford F-150 3.5L EcoBoost
2018 Ford F-150 3.5L EcoBoost
2019 Ford F-150 3.5L EcoBoost
2020 Ford F-150 3.5L EcoBoost
Fits 2WD and 4WD models equipped with the second-generation 3.5L EcoBoost twin-turbo engine.
Product Features Summary
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EPA-compliant high-flow catalytic converters
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Active AFlow catalytic technology
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3-inch high-flow downpipe design
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Faster turbo spool
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Increased power potential
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Stainless steel performance construction
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Direct bolt-on installation
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Compatible with stock or aftermarket exhaust systems
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Designed for turbocharged performance applications
Why Upgrade EcoBoost Downpipes
The downpipes are one of the most restrictive parts of the factory exhaust system on turbocharged engines.
Upgrading to high-flow catted downpipes allows exhaust gases to exit the turbochargers faster, improving turbo efficiency, increasing power output, and enhancing overall driving performance while maintaining catalytic functionality.
These EPA-compliant downpipes provide the perfect balance of power, reliability, and emissions-friendly performance for the 3.5L EcoBoost F-150 platform.
