cp-e QKspl Catted Downpipe - High Flow (3.5L EcoBoost)
Fits 2011-2014 3.5L EcoBoost
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gain
~5% gain / ~5% gain
manufacturer claim
no absolute hp figure given
price
$1,242.59
at AmericanTrucks
13% above its 35-day average on this sitePrice tracked 7 times since Jul 19, 2026: low $995, high $1,242.59, currently $1,242.59.
low $995 · high $1,242.59 since Jul 19, 2026
install
2/5 difficulty · n/a
where to buy · 3 retailers tracked
A catted downpipe for 3.5L EcoBoost trucks (2011-2014 fitment) from cp-e, designed to replace the factory downpipe with a higher-flow catalytic converter setup.
why this one — cp-e's own product page claims about a 5% power gain through the RPM band, but that is a percentage claim from the manufacturer, not an independent dyno number.
heads up
NOT LEGAL FOR SALE OR USE IN CALIFORNIA.
pairs well with
Gain shown is a manufacturer claim, not a guarantee. Price is a list price and can lag the retailer; confirm at checkout. See our affiliate disclosure.