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MagnaFlow Sys T/B 99-03 Ford F-250/F-350 Super Duty 7.3L Diesel 4in Single Passenger Side Rear Exit

Unlock your Ford F-250/F-350 Super Duty's full potential with the MagnaFlow Custom Builder Series 17878. This turbo-back exhaust system is designed to deliver dyno-proven performance and a signature resonant sound.

Featuring a weight-optimized, emissions-legal design, this system is engineered to enhance your diesel truck's performance. The 4in. diameter Custom Builder Pipe kit is made of durable, corrosion-resistant stainless steel and produced using CNC precision robotic manufacturing techniques.

The system terminates in a Single Passenger Side Rear exit and is backed by MagnaFlow's limited lifetime warranty. Professional installation is recommended due to the possible cutting, welding, and fabrication required.

  • Aggressive interior and Very Aggressive exterior sound levels
  • Mandrel bent pipes for optimal performance
  • 100% stainless steel construction for durability
  • CNC precision robotic manufacturing techniques for precise fitment
  • Backed by MagnaFlow's limited lifetime warranty
Make Model Year Type
Ford F-250 Super Duty 1999 Lariat
Ford F-250 Super Duty 1999 XL
Ford F-250 Super Duty 1999 XLT
Ford F-250 Super Duty 2000 Lariat
Ford F-250 Super Duty 2000 XL
Ford F-250 Super Duty 2000 XLT
Ford F-250 Super Duty 2001 Lariat
Ford F-250 Super Duty 2001 XL
Ford F-250 Super Duty 2001 XLT
Ford F-250 Super Duty 2002 Lariat
Ford F-250 Super Duty 2002 XL
Ford F-250 Super Duty 2002 XLT
Ford F-250 Super Duty 2003 Lariat
Ford F-250 Super Duty 2003 XL
Ford F-250 Super Duty 2003 XLT
Ford F-350 Super Duty 1999 Lariat
Ford F-350 Super Duty 1999 XL
Ford F-350 Super Duty 1999 XLT
Ford F-350 Super Duty 2000 Lariat
Ford F-350 Super Duty 2000 XL
Ford F-350 Super Duty 2000 XLT
Ford F-350 Super Duty 2001 Lariat
Ford F-350 Super Duty 2001 XL
Ford F-350 Super Duty 2001 XLT
Ford F-350 Super Duty 2002 Lariat
Ford F-350 Super Duty 2002 XL
Ford F-350 Super Duty 2002 XLT
Ford F-350 Super Duty 2003 King Ranch
Ford F-350 Super Duty 2003 Lariat
Ford F-350 Super Duty 2003 XL
Ford F-350 Super Duty 2003 XLT
MagnaFlow is best known for manufacturing performance exhaust systems, but their catalog of product also includes catalytic converters, universal mufflers, exhaust tips, universal piping, glass pack mufflers, and headers. MagnaFlow incorporates advanced manufacturing processes into every product they make. As a result, they have become the leader in first to market applications while maintaining high quality product standards.
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