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Stainless Works 2011-14 F-150 3.5L 3in Downpipe High-Flow Cats Y-Pipe Factory Connection

Marsoni M251S
Sale price$805.12
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Stainless Works 2011-14 F-150 3.5L 3in Downpipe High-Flow Cats Y-Pipe Factory Connection2011 14 Ford F 150 Ecoboost 3. 5L. All tubes are CNC mandrel bent for optimal flow. Made from 304 stainless steel for maximum corrosion resistance. 3" downpipe with catted lead pipes. Includes Y pipe to fit to factory connection point. These are TIG welded for strength and durability. These kits come with a lifetime warranty and proudly made in the USA. Installation Instructions This Part Fits: Year Make Model Submodel 2011 2014 Ford F 150 FX2 2011
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4.8 ★★★★★
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Valentyn
Waukegan, US
★★★★★ 1
Find another one
Style: CA10467
Honda Accord 2009 2.4L right after installing this filter I got check engine code P0172 "mixture is too rich", LTFT -20%, STFT -20%. After replacing filter with another brand problem gone. This filter is restricting airflow too much.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026
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Verified Purchase
Erik
Carnegie, US
★★★★★ 5
Fits as described
Size: One Size, Style: Select
Great filter element, and priced right for multiple/limited use.
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Reviewed in the United States on May 10, 2026
S
Verified Purchase
Saving money
Massapequa, US
★★★★★ 5
Saved money
Size: One Size, Style: Select
Nice quality part, cheaper than auto parts store if you have the time to wait on prime
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Reviewed in the United States on May 12, 2026
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Verified Purchase
juan aliaga
Houston, US
★★★★★ 5
good stuff
Size: One Size, Style: Select
it works good!
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Reviewed in the United States on April 15, 2026
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Verified Purchase
Amazon Customer
Boise, US
★★★★★ 5
Oil filter.
Size: One Size, Style: Select
Filter and included o-ring fit perfectly.
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Reviewed in the United States on April 14, 2026

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