cp-e QKspl Catted Downpipe - EcoF by Gesi (3.5L EcoBoost)
Fits 2011-2014 3.5L EcoBoost
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Price tracked 7 times since Jul 31, 2026 across the stores we check daily: low $1,242.59, high $1,495, currently $1,242.59.
where to buy · 2 retailers tracked
The top-tier "EcoF by Gesi" catalytic converter version of cp-e's QKspl downpipe for 2011-2014 F-150 EcoBoost.
why this one — Priciest of the three QKspl variants, using a Gesi EcoF catalytic converter cp-e positions as its premium cat option.
Cp-e.com product page states "5% gains throughout RPM band" for the QKspl downpipe family - a manufacturer-published percentage claim, not an independent dyno number.
NOT LEGAL FOR SALE OR USE IN CALIFORNIA.
Gain shown is a manufacturer claim, not 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.