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Stainless Works' Aftermarket Connect lead pipe kit connects a Stainless Works or Stainless Power long tube header system to a 3-inch aftermarket catback exhaust on a 2015-2025 Ford Mustang GT (also fits Bullitt, Mach 1, and Dark Horse). Built from corrosion-resistant 304 stainless steel and TIG welded in the USA, these mandrel-bent 3-inch pipes retain the factory O2 sensor bungs for full sensor functionality.
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2015-2025 | Ford | Mustang | GT |
| 2019-2020 | Ford | Mustang | Bullitt |
| 2021-2023 | Ford | Mustang | Mach 1 |
| 2024-2025 | Ford | Mustang | Dark Horse |
| Detail | Value |
|---|---|
| Manufacturer part number | M15LDSLG |
| Material | 304 stainless steel |
| Pipe diameter | 3 in ID inlet and outlet |
| Header compatibility | Stainless Works / Stainless Power long tube headers only |
| Welding | TIG welded, USA |
| O2 sensor bungs | Included, retains factory sensors |
Stainless Works has manufactured stainless steel performance exhaust systems and headers in Streetsboro, Ohio since 1998, known for precision mandrel-bent tubing and TIG-welded American-made construction.
No, this lead pipe kit only works with Stainless Works or Stainless Power long tube header systems, not the factory manifolds.
What catback exhaust does this connect to?This Aftermarket Connect version is designed to connect the header system to a 3-inch aftermarket catback exhaust.
Are O2 sensor bungs included?Yes, both lead pipes retain O2 sensor bungs so factory oxygen sensors function normally.
What material is this kit made from?304 stainless steel, TIG welded at Stainless Works' Ohio facility.
Does this kit include clamps?Yes, the clamps needed to connect the lead pipes are included.
Will this fit a Mustang EcoBoost or V6?No, this kit is designed for the GT, Bullitt, Mach 1, and Dark Horse trims paired with Stainless Works GT header systems.
Is cutting required to install this kit?Some fitment scenarios with certain aftermarket exhaust systems may require minor trimming; refer to the installation instructions for your specific catback.
What is Stainless Works' warranty on this kit?Stainless Works backs its stainless steel exhaust components against manufacturing defects; contact the manufacturer for full warranty terms.
This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
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