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Catted and catless downpipes, mid-pipes, and cat-back exhaust systems that free up the EcoBoost turbos and give the 2.7 and 3.5 a deeper tone with real spool and flow gains.
3 parts
Exhaust is where the EcoBoost's twin-turbo character really comes alive. Freeing up the path after the turbos — downpipes, mid-pipes, and cat-back systems — lets spent gas leave faster, which can sharpen spool, add a little top-end flow, and give the 2.7 and 3.5 the deeper, boosted tone they hide behind the quiet factory setup. This category collects the downpipes and exhaust systems EcoBoost owners use to wake the truck up on both sound and flow.
Think of the exhaust in two halves. The section closest to the turbos — the downpipes — has the biggest effect on performance and, if catless, on sound and emissions; catted downpipes are the street-friendly choice that still frees up flow. The cat-back behind it is mostly about tone and drone: pick a system tuned for the sound you want and confirm it is legal where you drive. As with intakes, a supporting tune lets the engine make the most of the extra flow.
Used, OEM, and hard-to-find exhaust & downpipes for the EcoBoost — live listings, prices set by the seller.
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BD Diesel Exhaust Manifold Set - Ford F-150 3.5L Ecoboost 11-16. Downpipe or cat-back that frees up the EcoBoost turbos and adds a deeper tone with real spool and flow gains.
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Rear Bumper Diffuser for Ford Mustang 2015-2023 for Dual Exhaust | V2 Style Rear Spoiler Lip Only for Dual Exhaust Version（Drilling is Required）. Downpipe or cat-back that frees up the EcoBoost turbos and adds a deeper tone with real spool and flow gains.
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1043001 Exhaust Manifold Kit for Ford F-150 3.5L Ecoboost, for Expedition/Transit/Lincoln, Replaces BL3Z-9430-B, BL3Z-9430-D, BL3Z-9431-B, BL3Z-9431-D. Downpipe or cat-back that frees up the EcoBoost turbos and adds a deeper tone with real spool and flow gains.
The section right off the turbos affects spool and flow far more than the cat-back. Catted downpipes free up the turbos while staying street-friendly; catless picks up more sound and flow but raises emissions and legality concerns.
A cat-back is mostly about sound. If you daily the truck, choose a system known for a clean note without cabin drone at highway speed — cheap systems often resonate at exactly the RPM you cruise in.
Opening the exhaust changes how the turbos behave. A supporting tune lets the calibration account for the new flow and is where downpipes turn into real, repeatable gains.