5.4L cat "front" pipe
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Trailering
Joined: Jan 2022
Posts: 16
Likes: 1
From: Mass
5.4L cat "front" pipe
2003 F350 regular cab 5.4L
The pipe between the Y-pipe and cat has rusted through right at the flange on the cat side. The pipe itself is part of the whole catalytic converter assembly. The cat itself is fine, just the rusted pipe at the flange.
Has anyone found a flange and short pipe that bolts up?? I really don't want to cut off the flange from the Y-pipe, but I'm having no luck finding a flange and pipe section that fits.
Any help is appreciated
Thanks,
Ed
1995 Bronco 5.8L XLT
1998 E-350 6.8L Club Wagon
1999 F-350 6.8L extended cab Lariat short bed - rusty
2002 F-350 7.3L crew cab utility (next project)
2003 F-350 5.4L XLT reg cab long bed (current project)
The pipe between the Y-pipe and cat has rusted through right at the flange on the cat side. The pipe itself is part of the whole catalytic converter assembly. The cat itself is fine, just the rusted pipe at the flange.
Has anyone found a flange and short pipe that bolts up?? I really don't want to cut off the flange from the Y-pipe, but I'm having no luck finding a flange and pipe section that fits.
Any help is appreciated
Thanks,
Ed
1995 Bronco 5.8L XLT
1998 E-350 6.8L Club Wagon
1999 F-350 6.8L extended cab Lariat short bed - rusty
2002 F-350 7.3L crew cab utility (next project)
2003 F-350 5.4L XLT reg cab long bed (current project)
Fleet Mechanic
Joined: Nov 2006
Posts: 1,664
Likes: 219
From: Northwest
Drop the cat out and cut off the rusted part. Stub in a short piece of exhaust pipe with one end expanded to it will fit back over your Y pipe.
Weld the stub to the cat and the flared end to your Y pipe.
Weld the stub to the cat and the flared end to your Y pipe.
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bigroundrocks
1987 - 1996 F150 & Larger F-Series Trucks
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Apr 28, 2006 11:21 AM
