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Thumbnail Filmstrip of 7.3L OBS Powerstroke 4 Inch Aluminized Exhaust Diamond Eye K4306A-RP Images
The stock 1994 through early 1997 Ford 7.3L exhaust necks down and the muffler adds another restriction, so the turbo works against its own exhaust under load. Replace that system with Diamond Eye K4306A-RP, a 4-inch aluminized turbo-back that uses a straight pipe where the muffler would sit.
- Build: 4-inch aluminized single system from the turbo back, with a 3-inch two-piece downpipe in the engine bay and a muffler-replacement pipe instead of a muffler.
- Part number: Diamond Eye K4306A-RP. The muffler version of this kit is K4306A.
- Fitment: 1994 through early 1997 Ford F-250 and F-350 7.3L Powerstroke, all cab and bed lengths. The system bolts back to the factory catalytic converter.
- Does not fit: 1999-2003 Super Duty, E-Series, cab-and-chassis, or a truck whose converter has already been removed if you still need that flange.
- Not in the box: No muffler and no catalytic converter. The converter on the truck is reused. No exhaust tip comes with this kit.
Order today to secure your replacement and confirm you want the no-muffler kit, not K4306A with a muffler, on a 1994 through early 1997 F-250 or F-350.
The stock 1994 through early 1997 Ford 7.3L exhaust necks down and the muffler adds another restriction, so the turbo works against its own exhaust under load. Replace that system with Diamond Eye K4306A-RP, a 4-inch aluminized turbo-back that uses a straight pipe where the muffler would sit.
Build: 4-inch aluminized single system from the turbo back, with a 3-inch two-piece downpipe in the engine bay and a muffler-replacement pipe instead of a muffler.
Part number: Diamond Eye K4306A-RP. The muffler version of this kit is K4306A.
Fitment: 1994 through early 1997 Ford F-250 and F-350 7.3L Powerstroke, all cab and bed lengths. The system bolts back to the factory catalytic converter.
Does not fit: 1999-2003 Super Duty, E-Series, cab-and-chassis, or a truck whose converter has already been removed if you still need that flange.
Not in the box: No muffler and no catalytic converter. The converter on the truck is reused. No exhaust tip comes with this kit.
Order today to secure your replacement and confirm you want the no-muffler kit, not K4306A with a muffler, on a 1994 through early 1997 F-250 or F-350.[...]
The stock 1994 through early 1997 Ford 7.3L exhaust necks down and the muffler adds another restriction, so the turbo works against its own exhaust under load. Replace that system with Diamond Eye K4306A-RP, a 4-inch aluminized turbo-back that uses a straight pipe where the muffler would sit.
- Build: 4-inch aluminized single system from the turbo back, with a 3-inch two-piece downpipe in the engine bay and a muffler-replacement pipe instead of a muffler.
- Part number: Diamond Eye K4306A-RP. The muffler version of this kit is K4306A.
- Fitment: 1994 through early 1997 Ford F-250 and F-350 7.3L Powerstroke, all cab and bed lengths. The system bolts back to the factory catalytic converter.
- Does not fit: 1999-2003 Super Duty, E-Series, cab-and-chassis, or a truck whose converter has already been removed if you still need that flange.
- Not in the box: No muffler and no catalytic converter. The converter on the truck is reused. No exhaust tip comes with this kit.
Order today to secure your replacement and confirm you want the no-muffler kit, not K4306A with a muffler, on a 1994 through early 1997 F-250 or F-350.
Q
Aj • 02/21/2025, 2:50:06 AM
Will this fit on a crew cab long bed?
A
02/24/2025, 4:01:48 PM
Yes
Q
Adam • 03/27/2025, 0:36:52 AM
Does this come with A CATALYTIC converter?
A
03/28/2025, 1:34:49 PM
No. You use the factory unit.
Q
William Bogrett • 04/21/2025, 4:25:55 AM
Is this 4" from the turbo back or does it use a 3" downpipe
A
04/22/2025, 4:52:05 PM
4 Inch Downpipes do not fit the OBS Ford. This is a 3 Inch Downpipe
Proposition 65 Warning Information -
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