Flowmaster American Thunder Cat-Back, polished tips
Fits 2021-2026 2.7L EcoBoost · 3.5L EcoBoost
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gain
11 hp / 10 tq
manufacturer claim
price
$1,049.95
install
2/5 difficulty · n/a
Flowmaster's American Thunder cat-back for 2021-2026 trucks, dual 2.5-inch tailpipes with polished tips.
why this one — Flowmaster's own dyno testing claims up to 11 hp and 10 lb-ft at the rear wheels - there's no independent dyno backing that number up, so treat it as the manufacturer's number, not a verified one.
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.