Product Description
Upgrade your 2003–2005 Ford Excursion 6.0L with the MBRP XP Series S6216409 4" turbo-back, single-side, stock-cat-exit exhaust in rugged T409 stainless steel. Built to handle harsh climates and heavy towing, this system boosts flow, drops EGTs, and delivers that clean, authoritative MBRP tone.
- Material: T409 stainless (XP Series) for long-term durability
- Configuration: 4" turbo-back, single-side, stock catalytic converter location
- Includes: 3.5" downpipe, mandrel-bent tubing, clamps/hardware
- Sound: Deep diesel note without excessive drone
- Direct bolt-on fit; uses factory hangers
Fitment
Designed specifically for 2003–2005 Ford Excursion 6.0L Power Stroke. Uses the stock catalytic converter. Not legal for sale in California on pollution-controlled vehicles.
What’s Included
- MBRP S6216409 T409 stainless exhaust assembly (turbo-back)
- 3.5" turbo downpipe (vehicle-specific)
- Clamps, hangers, and installation hardware
- Installation instructions
Cross-Reference / Alternatives (MBRP-only)
- Aluminized version for the same Excursion fitment: MBRP S6216AL
- Similar 4" turbo-back systems for 2003–2007 F-250/F-350 6.0L (if you’re outfitting a Super Duty instead of an Excursion): MBRP S6212AL
- Excursion 1999–2003 (7.3L) owners should use: MBRP S6204AL
Recommended MBRP Tips (4" inlet)
- MBRP T5073 — 6" O.D., 4" inlet, 12" length (T304)
- MBRP T5052 — Pro Series options, 4" inlet (T304)
- MBRP T5122 — 4" O.D., dual-wall angled (T304)
Helpful Notes
- Reuses stock catalytic converter (no tuning required for fitment).
- Professional installation recommended if fasteners are corroded.
FAQ
Does this kit keep the stock catalytic converter?Yes. S6216409 routes to the stock-cat location and reuses the factory catalytic converter for proper emissions layout.
Will it fit F-250/F-350 6.0L?
No—this part is tailored to the Excursion 6.0L (2003–2005). For 2003–2007 Super Duty trucks, see the MBRP Super Duty systems listed above.
What tip size should I choose?
These systems end in 4". Popular choices are 4"-inlet tips like the MBRP T5073 or T5052 for a bold, polished finish.
Is T409 stainless better than aluminized?
T409 offers better corrosion resistance vs. aluminized steel, making it a strong choice for salty or wet climates.
