I finally got an email back from someone at Bully Dog. Now, I don't know if this is for my 06 SER but...
We do not have the dyno graphs for the Altima at the moment, i can tell you that the pup will give you roughly 25hp and 40flbs for torque with the 3.5L engine, which is more than you would get on the Titan.
Then I emailed him back;
Thank you for emailing me back. Now if I were to buy the Nissan unit from other websites and dealers, is your 30 day guarantee still in effect? Also on the 25hp gain, that's not to the wheels is it? Thanks again for emailing me back.
Then his reply;
The money back guarantee is from Bully Dog, if you buy from other dealers or websites they may or may not offer it, I would advise checking in advance to make sure.
As to the other question, all of our readings are taken at the wheels, not the fly. We feel that this gives a more true reading as a lot of power can be lost in the transmission.
Uh, I'm not going to fork out $450 with those kind of claims without some kind of backup like a dyno. Give me some concrete evidence first and then I would definitely buy this. If they claim to have readings, why don't they share them with us? Until then, no way.