Stainless Power SM24H3CATLG Catted Long Tube Headers for 15-26 Mustang GT 5.0L

Vehicle Fitment

• 2015-2026 Ford Mustang GT, 5.0L Coyote V8
• 2019-2020 Ford Mustang Bullitt, 5.0L Coyote V8
• 2021-2023 Ford Mustang Mach 1, 5.0L Coyote V8
• 2024-2026 Ford Mustang Dark Horse, 5.0L Coyote V8

Fitment Notes

• Aftermarket Connect configuration -- 3" outlet, fits most aftermarket catbacks (MBRP, Corsa, etc.)
• May require cutting for connection to some aftermarket systems
• Distinct from Factory Connect (SM24HCAT) and Performance Connect (SM24H3CAT)
• Replaces earlier part number SM15H3CATLG
• Gaskets not included

Features

• 1-7/8" primary tubes
• 3" diameter lead pipes with high-flow catalytic converters
• TIG-welded 304 stainless steel construction
• 3/8" thick flanges, won't warp
• 3" slip-fit collectors with merge spikes
• Mandrel-bent for smooth exhaust flow
• Naturally aspirated and supercharged applications

Specifications

• Primary tube diameter: 1-7/8"
• Collector/lead pipe diameter: 3"
• Flange thickness: 3/8"
• Material: 304 stainless steel, natural finish
• Catalytic converter: Included, high-flow
• 2-year warranty on material and workmanship

Included Components

• 2x Catted Long Tube Headers

Product Description

Stainless Power's 1-7/8" Catted Long Tube Headers deliver a significant jump in exhaust flow and performance for the 5.0L Coyote-powered Mustang GT, Bullitt, Mach 1, and Dark Horse. Built from TIG-welded 304 stainless steel with 3/8" thick flanges that resist warping under heat cycling, these headers feature 3" diameter lead pipes fitted with high-flow catalytic converters and integrated merge spikes for stronger exhaust scavenging.

This Aftermarket Connect version is built to connect with popular aftermarket catback systems -- including MBRP, Corsa, and other 3" aftermarket setups -- beyond Stainless Works' own product line. Note that some aftermarket catback connections may require minor cutting to complete the fit.

Backed by Stainless Power's 2-year warranty on material and workmanship. Note: this replaces the earlier SM15H3CATLG part number. For factory-style stock exhaust connection, the Factory Connect variant (SM24HCAT) is the correct part; for Stainless Works' own catback systems specifically, the Performance Connect variant (SM24H3CAT) is the better fit. Gaskets are not included with this header set.