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Thumbnail Filmstrip of 1994-1997 7.3L OBS Powerstroke SS Bellowed Up Pipes AVP UP73OBS Images
Factory OBS 7.3L up-pipes rely on crush donuts between the exhaust manifolds and turbo. When those joints leak, drive pressure drops and EGTs climb. AVP UP73OBS is a stainless bellowed up-pipe kit that replaces that leak-prone feed system on 1994.5-1997 Ford 7.3L Power Stroke trucks.
The kit uses stainless piping with internally shielded expansion bellows and a ductile-iron turbo Y-adapter, with gaskets and hardware in the box—no core return required.
What you get
- AVP stainless bellowed up-pipe kit, UP73OBS
- Stainless up-pipes with internally shielded expansion bellows
- High-strength ductile iron turbo Y-adapter
- Gaskets and hardware included
- No core charge / no old up-pipe return
- Fitment: 7.3 Power Stroke 1994.5-1997 OBS
- Sold by Full Force Diesel
Specs
- Part number: UP73OBS
- UPC: 708744252517
- Material: stainless steel piping; ductile iron Y-adapter
- Bellows: internally shielded expansion bellows
- Replaces: factory exhaust manifold-to-turbo feed pipes
A common upgrade while the engine or transmission is already apart. Verify fitment for your truck before ordering.
Factory OBS 7.3L up-pipes rely on crush donuts between the exhaust manifolds and turbo. When those joints leak, drive pressure drops and EGTs climb. AVP UP73OBS is a stainless bellowed up-pipe kit that replaces that leak-prone feed system on 1994.5-1997 Ford 7.3L Power Stroke trucks.
The kit uses stainless piping with internally shielded expansion bellows and a ductile-iron turbo Y-adapter, with gaskets and hardware in the box—no core return required.
What you get
AVP stainless bellowed up-pipe kit, UP73OBS
Stainless up-pipes with internally shielded expansion bellows
High-strength ductile iron turbo Y-adapter
Gaskets and hardware included
No core charge / no old up-pipe return
Fitment: 7.3 Power Stroke 1994.5-1997 OBS
Sold by Full Force Diesel
Specs
Part number: UP73OBS
UPC: 708744252517
Material: stainless steel piping; ductile iron Y-adapter
Bellows: internally shielded expansion bellows
Replaces: factory exhaust manifold-to-turbo feed pipes
A common upgrade while the engine or transmission is already apart. Verify fitment for your[...]
Factory OBS 7.3L up-pipes rely on crush donuts between the exhaust manifolds and turbo. When those joints leak, drive pressure drops and EGTs climb. AVP UP73OBS is a stainless bellowed up-pipe kit that replaces that leak-prone feed system on 1994.5-1997 Ford 7.3L Power Stroke trucks.
The kit uses stainless piping with internally shielded expansion bellows and a ductile-iron turbo Y-adapter, with gaskets and hardware in the box—no core return required.
What you get
- AVP stainless bellowed up-pipe kit, UP73OBS
- Stainless up-pipes with internally shielded expansion bellows
- High-strength ductile iron turbo Y-adapter
- Gaskets and hardware included
- No core charge / no old up-pipe return
- Fitment: 7.3 Power Stroke 1994.5-1997 OBS
- Sold by Full Force Diesel
Specs
- Part number: UP73OBS
- UPC: 708744252517
- Material: stainless steel piping; ductile iron Y-adapter
- Bellows: internally shielded expansion bellows
- Replaces: factory exhaust manifold-to-turbo feed pipes
A common upgrade while the engine or transmission is already apart. Verify fitment for your truck before ordering.
3.67/5 Stars out of 3 Reviews
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William R Somerville (Fruita) | March 21st, 2021
I ordered these for my 96 obs. The fit was pretty close, and they look good. I only gave 3 stars because they were angled slightly incorrectly. I had to dent the drivers side pipe and shave a section of the head down. I had the cab pulled, so it wasn't that difficult, but it would be much more difficult to install in the back yard.
Luke H Goodman (Prineville) | November 29th, 2020
They sure are pretty. Things didn't line up perfect but I was able to get all the bolts started and pull everything together. No leaks. I'm happy!
Cameron Sweet (Massachusetts) | November 12th, 2020
Quality of the pipes looks good. I think it has the potential to be a 5-star product if it came with installation instructions and higher grade hardware. There were also (2) donut gaskets included with the kit that don't seem to go anywhere? Either way for the price it can't be beat
Proposition 65 Warning Information -
P65Warnings.ca.gov
Fits: 7.3 Powerstroke 1994-1997
California Restricted
Fits: 7.3 Powerstroke 1994-1997
Fits: 7.3 Powerstroke 1994-1997
Fits: 7.3 Powerstroke 1994-Early 1999 w/Bellowed Up-Pipes