Board index (Legacy) Predator Technical Discussion Predator GM Diesel 2006 Duramax 2500HD - U7186 from 2006(not updated)

2006 Duramax 2500HD - U7186 from 2006(not updated)

Predator support for GM diesel vehicles

Moderator: mikel


Posts: 2
In order to correct speedometer - should I be using tire size or height (32 inches)? I just added cold air intake and 4" exhaust (no cat) , should I see better fuel mileage? With these changes should I update my predator or stay with the old?


Posts: 52349
Location: DiabloSport World Headquarters

Either way is fine, they both do the same thing.
Mike Litsch
Powerteq Customer Service Manager
Diablo Tech support by phone:
561-908-0040x4
M-F 8:00 AM to 5:00 PM EST


Posts: 40
I haven't had much luck in adjusting the speedo with the predator. My speedometer is always slower that I'm actually going. Best I had it was 2mph then I put 17's on and it is back to 4-5 mph slow also if I get the speedo close to correct it sets off the ABS light.
2006 Silverado 2500HD ECSB LBZ 4" MBRP exhaust, Blockerplate and Fingerstick, U7186 Predator, Kennedy Booststick, Isspro EGT and Boost gauges, S&B Intake.


Posts: 2
I changed my tire size to the measured inches and my speedo has changed from 3 mph over to around 1 over.
Mikel - can you answer both of the other questions I asked. Thanks


Posts: 52349
Location: DiabloSport World Headquarters

Id update the Predator for sure, it has some new features.
Mike Litsch
Powerteq Customer Service Manager
Diablo Tech support by phone:
561-908-0040x4
M-F 8:00 AM to 5:00 PM EST


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