[mikey8865]

my uncle wants the spartan but dont wnat ot take the dpf off....just how he is...does the fuel mileage get ne better? if u leave it on but put the spartan tune on?

 

[08stroker250]

He wont see any major gains because of regen still being there, but it will help some

 

[mikey8865]

ya....he said he gets round 16 now on the hwy...thats how the computer shows?....just tryin to get some numbers for him

 

[08stroker250]

ya....he said he gets round 16 now on the hwy...thats how the computer shows?....just tryin to get some numbers for him

So, that 16 isnt hand calculated...he is going by the dash reading? Most likely not very accurate. He will get a slight increase from stock with the highest DPF-on tune which is the 150.

 

[po-po 5.0]

the 150hp DPF-enabled tune is good for 1-2mpg improvement.