MBRP Exhaust Installer Series 4in Cat-Back, Race Profile, Single Side Exit (Armor Lite)
Fits 2015-2020 2.7L EcoBoost · 3.5L EcoBoost
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Price tracked 13 times since Jul 26, 2026 at the stores we check daily, not eBay: low $529.99, high $559.99, currently $559.99.
where to buy · 3 retailers tracked
A cat-back exhaust replaces the piping and muffler from the catalytic converter back with larger 4-inch aluminized tubing exiting out one side, for more flow than the 3-inch street option.
why this one — MBRPs largest-diameter single-side option for 2015-2020 trucks, one step above the 3in S5253409/S5260AL family; also has a black-finish sibling (S5259BLK) not yet catalogued.
No hp/tq figure published on mbrp.com for this SKU (checked directly, 2026-07-22); consistent with NONE PUBLISHED already established for 10+ other MBRP F-150 cat-back SKUs in this catalog.
Questions about this category
No published gain figure for this part, and nothing here is 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.