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Stainless Works long‑tube headers for 2020–2021 Ford F‑250/F‑350 7.3L installations feature 1‑7/8‑inch primaries, 3‑inch collectors and integrated high‑flow catalytic converters. Designed to improve exhaust scavenging and flow relative to stock manifolds, these headers are offered for owners seeking increased flow characteristics and altered exhaust dynamics for the 7.3L powerplant as indicated in the product description.
Stainless Works 20-21 Ford F-250/F-350 7.3L Headers 1-7/8in Primaries 3in Collectors High Flow Cats
