So I finally decided to install my Pro Fab Y-Bridge and Cold Pipe last week, and here is what I saw/found and some thoughts on before/after performance of the truck.
Notes:
1. I purchased this high flow y-bridge back in December 2013, its the high flow version with the flow divider cast in and inlet pipe welded to the bridge.
2. If you still have your EGR cooler installed, the bridge will not fit. (I removed mine as it was interfering with the bridge, and it was leaking. I cut the up-pipe end of the cooler off to keep my EGR blocker in place until I can get up-pipes installed.)
3. The easiest way I found to tighten the lower passenger side rear nut is to remove the factory heat shield and use a 8" long 10mm wrench to tighten.
4. The driver side rear lower nut was able to be tightened by coming in from the passenger side and going under the turbo.
5. I was unable to get access to the lower front passenger side to install the bolt. If the turbo is out, you can come in from under the bridge to gain access.
6. For the average joe, plan on this taking all day if not two.
7. If you have an LBZ or have installed an LBZ mouthpiece, you may need to file down the lower seam slightly on the mouthpiece to clear the bridge neck and a fuel line that goes over the bridge.
8. You WILL need 1/4 drive extensions, universals, and swivel/wobble sockets. Also, swivel/wobble extensions have been recommended in other threads.
Performance Review
After installing these parts, I first noticed a slightly different exhaust note (a little bit deeper). The truck definitely runs better as the turbo spools up quicker and has lower EGTs. Driving around town, the truck seems to accelerate smoother and EGTs are down 50-100 degrees. So far I have only seen 25 PSIg so far (no gauge before installation so no data for a comparison).
I had to go get my 5th wheel camper (40' and ~14,000 lbs) today and I noticed on the trip up that EGTs were down 100-200 degrees with cruise set at 75. No results on MPGs yet as I didnt fill up before I hooked up the camper, but I have been getting ~17-17.5 mpgs with the stock intake bridge.
With the trailer hooked up I noticed smoother acceleration and a "throatier" exhaust note, only 20 PSI on the gauge, and an EGT reduction of at least 100 degrees.
I will add a couple of pictures and update the MPGs later this week. Thanks to all who helped me out.
Notes:
1. I purchased this high flow y-bridge back in December 2013, its the high flow version with the flow divider cast in and inlet pipe welded to the bridge.
2. If you still have your EGR cooler installed, the bridge will not fit. (I removed mine as it was interfering with the bridge, and it was leaking. I cut the up-pipe end of the cooler off to keep my EGR blocker in place until I can get up-pipes installed.)
3. The easiest way I found to tighten the lower passenger side rear nut is to remove the factory heat shield and use a 8" long 10mm wrench to tighten.
4. The driver side rear lower nut was able to be tightened by coming in from the passenger side and going under the turbo.
5. I was unable to get access to the lower front passenger side to install the bolt. If the turbo is out, you can come in from under the bridge to gain access.
6. For the average joe, plan on this taking all day if not two.
7. If you have an LBZ or have installed an LBZ mouthpiece, you may need to file down the lower seam slightly on the mouthpiece to clear the bridge neck and a fuel line that goes over the bridge.
8. You WILL need 1/4 drive extensions, universals, and swivel/wobble sockets. Also, swivel/wobble extensions have been recommended in other threads.
Performance Review
After installing these parts, I first noticed a slightly different exhaust note (a little bit deeper). The truck definitely runs better as the turbo spools up quicker and has lower EGTs. Driving around town, the truck seems to accelerate smoother and EGTs are down 50-100 degrees. So far I have only seen 25 PSIg so far (no gauge before installation so no data for a comparison).
I had to go get my 5th wheel camper (40' and ~14,000 lbs) today and I noticed on the trip up that EGTs were down 100-200 degrees with cruise set at 75. No results on MPGs yet as I didnt fill up before I hooked up the camper, but I have been getting ~17-17.5 mpgs with the stock intake bridge.
With the trailer hooked up I noticed smoother acceleration and a "throatier" exhaust note, only 20 PSI on the gauge, and an EGT reduction of at least 100 degrees.
I will add a couple of pictures and update the MPGs later this week. Thanks to all who helped me out.
