The MBRP S6218409 is a 4 inch turbo-back exhaust for 1994-1997 Ford F-250 and F-350 trucks with the 7.3L Powerstroke and automatic transmission. It is part of MBRP's Armor Plus line, built from T409 stainless steel.

The system replaces everything from the turbo back with mandrel-bent tubing and a 3 inch downpipe, then runs through a street profile muffler to a single side exit with a polished stainless tip. It bolts to the factory hangers and reuses the stock catalytic converter.

• T409 Stainless Steel: Corrosion-resistant build for long life.
• 4 Inch Mandrel Bends: Better flow for more power and lower EGTs.
• Street Profile Muffler: A deeper tone, a bit louder than stock.
• Polished Stainless Tip: Single wall T304 tip for a clean OEM-plus look.
• Bolt-On Install: Uses the factory hangers, no welding required.

Technical Specifications

• Part Number: S6218409
• Manufacturer: MBRP
• Series: Armor Plus
• Tubing: 4 inch T409 stainless, 3 inch downpipe
• Warranty: Lifetime (per MBRP)
• Core Requirement: No core required

Vehicle Fitment & Technical Installation Notes

• Fitment: 1994-1997 Ford F-250/F-350 with the 7.3L Powerstroke and automatic transmission. Reuses the stock catalytic converter. Manual transmission trucks require modification.
• Installation Tip: Bend back the pinch weld where the firewall meets the floor to clear the downpipe, then recheck clamps and clearances after the first 30-60 miles.