Forum Discussion
rgatijnet1
Nov 15, 2018Explorer III
I contacted Brazels and got the UltraPower tune on my ECM for my 8.1L Workhorse. Since we almost exclusively traveled in the Western mountains, above 5000',  and always had a toad, I asked them to reprogram the ECM for more power at altitude when towing. 
This made a huge improvement and I would do it again in an instant. I did not go with a cold air intake, headers, or any other modification, and do not feel they are necessary. The only modification that I did make was to install the Taylor Extreme silicone plug wires, with the heat shields, because of the fact that plug wires on the rear cylinders failing were a known issue.
The UltraPower did not have any affect on my mileage, either increase or decrease.
I did make one other modification that I should mention. I cut the "tuba" air intake horn, turned it 180 degrees, and reattached it facing backwards. This did away with a problem of the intake sucking in water during a heavy rain.
This made a huge improvement and I would do it again in an instant. I did not go with a cold air intake, headers, or any other modification, and do not feel they are necessary. The only modification that I did make was to install the Taylor Extreme silicone plug wires, with the heat shields, because of the fact that plug wires on the rear cylinders failing were a known issue.
The UltraPower did not have any affect on my mileage, either increase or decrease.
I did make one other modification that I should mention. I cut the "tuba" air intake horn, turned it 180 degrees, and reattached it facing backwards. This did away with a problem of the intake sucking in water during a heavy rain.
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