AMS Performance Street Downpipe (3.5L EcoBoost, non-Raptor)
Fits 2015-2020 3.5L EcoBoost
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Price tracked 13 times since Jul 12, 2026 across the stores we check daily: low $1,949.95, high $1,949.95, currently $1,949.95.
where to buy · 2 retailers tracked
A catted downpipe for 2015-2020 3.5L EcoBoost trucks (non-Raptor) from AMS Performance, EPA-compliant per AMS, built to increase exhaust flow versus the factory downpipe.
why this one — AMS does not publish a horsepower number for this part - instead they cite a 24.7% increase in cross-sectional area (flow) versus the stock downpipe.
No manufacturer or independent dyno figure found for this specific product (checked manufacturer site + major retailers). Downpipes in this category are marketed as tune-supporting parts; standalone hp/tq figures are not published. AMS publishes a flow spec instead: "24.7% increase in cross-sectional area" vs. stock - not a power figure.
Estimated from comparable claims: cp-e ~5% gain (no absolute hp figure given)
NOT LEGAL FOR SALE OR USE IN CALIFORNIA.
No published gain figure for this part, and nothing here is a guarantee. Price is a list price and can lag the retailer; confirm at checkout. See how we check a price and our affiliate disclosure.