DIAMOND EYE K5323S TURBO BACK EXHAUST 00-03.5 F250/F350 5 INCH SINGLE IN/ SINGLE OUT PASS WITH MUFFLER STAINLESS

DIAMOND EYE K5323S is a 5" 409 stainless steel turbo-back exhaust system for the 7.3L Powerstroke. It replaces the factory system from the turbo outlet back with a 4" downpipe, free-flow muffler, and passenger-side single tail exit for lower EGTs, quicker spool, and a deep, authoritative tone. Designed for automatic-transmission, non-catalyst models. Made in the USA.

FAQ: WILL THIS FIT MY TRUCK?

Yes—if you have a 2000–2003.5 Ford F-250/F-350 Super Duty 7.3L Powerstroke with an automatic transmission and non-catalyst configuration. Works with all cab and bed lengths. Early 2003 (2003.5 and earlier) 7.3L only—does not fit 6.0L models.

FAQ: WHAT’S INCLUDED?

4" turbo downpipe, intermediate/over-axle pipes, 5" tail section, straight-through muffler, and hardware/hangers for a bolt-in install (reuses OE-style mounting points).

FAQ: WHAT MATERIAL IS IT?

409 stainless steel tubing and components for durability in high-heat diesel service.

FAQ: SOUND LEVEL?

Deep, moderate tone with the included muffler—noticeable under throttle, comfortable on the highway.

Fitment Details

• Platform: 2000–2003.5 Ford F-250/F-350 Super Duty, 7.3L Powerstroke
• Drivetrain: Automatic transmission, non-catalyst models
• Configuration: Turbo-back, single passenger-side exit
• Downpipe: 4"; System OD: 5"
• Cab/Bed: All cab and bed lengths

Cross Reference / Related Items

• K5323A — 5" aluminized turbo-back, single, for 7.3L (alternative material)
• K4319S — 4" stainless turbo-back, single (smaller OD option)
• K4321S — 4" stainless turbo-back, dual exit (dual-tail upgrade)

Specifications