Join Date: Apr 2008
Location: Beeville, TX
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I don't think that Banks is a bad company, just an over-hyped, self-important company. They make good (albeit overpriced) hard parts like exhausts, intakes, turbo kits, etc. Their electronics and tuning is not the best, although according to Banks, it's the only way to stay legal.
If you want to be technical about it, even their products are not legal. Anything that modifies the factory parameters is technically illegal in California.
I can tell you for sure that Spartan's DPF-on tunes work pretty good. It won't net you any more fuel mileage (maybe 1 mpg), but Banks' products won't either. It's just not possible to do that with the DPF in place, no matter how many dollars Banks puts into advertising. The only real benefit that you get out of a tuned DPF-on truck is more driveability. Realistically, by tuning, and using more fuel, it will clog your DPF faster, and will cause more regens, more fuel in the oil, and lower fuel mileage, period. If you are exceedingly careful with your right foot, you may get 1 mpg more.
Basically, if you want to be legal, leave it stock. You will never ever pay for a tuner of any kind in fuel mileage improvement if you don't delete the DPF..
Eli Benson - EMT, Ambulance Mechanic
'08 F350 Dually KR - Spartan'd
'07 F250 CC SB 4x4 XLT - SCT /w Innovative Tunes
4 '09 & '10 E350 6.0l ambulances
1 '08 Duramax 6.6 (LMM) van ambulance