Stainless Works Catted Downpipe (2.7L/3.5L EcoBoost, non-Raptor)
Fits 2015-2020 2.7L EcoBoost · 3.5L EcoBoost
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Price tracked 14 times since Jul 12, 2026 across the stores we check daily: low $1,356, high $1,695, currently $1,610.25.
where to buy · 3 retailers tracked
A 304 stainless steel catted downpipe for 2015-2020 2.7L or 3.5L EcoBoost trucks (non-Raptor), built with high-flow catalytic converters to replace the factory downpipe.
why this one — No standalone horsepower figure is published for this part - like most downpipes, it is meant to support a tune rather than add power on its own.
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. One eBay retailer (whit3out) listing claims "80+ wheel torque gains. achieved with downpipe AND a tune" - this is a third-party retailer marketing claim, not manufacturer-published and not an independent dyno test, and it's explicitly confounded with a tune.
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.