Garrett (via Full-Race) Garrett PowerMax Stage 1 Bolt-On Twin Turbo Upgrade (881027/881028)
Fits 2011-2016 3.5L EcoBoost
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Price tracked 7 times since Sep 4, 2026 across the stores we check daily: low $2,158.82, high $2,223.59, currently $2,158.82.
where to buy · 2 retailers tracked
A bolt-on twin turbo upgrade using Garrett turbochargers, sold as a full package to replace the stock turbos for a large increase in total power when combined with supporting tune and fueling work.
why this one — The 450-600+ whp range comes from community builds and forum reports (with supporting tune, fueling, and other bolt-ons), not an independent or manufacturer dyno test of this specific kit alone.
Full-Race/Garrett product page (full-race.com, confirmed live 2026-09-04): 22% more flow than OEM turbos, typical gains +175 wheel horsepower and +120 wheel torque, peak whole-truck output 450 WHP / 460 WTQ. Manufacturer claim, not independently verified here, and the peak figure is a whole-truck total on a tuned and fuelled build, not a bolt-on gain.
Not legal for sale or use in California on pollution-controlled motor vehicles. Full-Race states this is intended as a "Race Only" product for sanctioned closed-course competition. Requires a tune and supporting fuel work; a twin-turbo install kit (about $659.99) is sold separately.
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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.