How can I get my horsepower back?

[Metalingus]

I read that the 450's and up were detuned from the factory for reasons I understand fully but don't bother me. What I'd like to know is how can I get the missing power back? Before I go out and buy stuff to pump up my truck, I'd like to at least have full power first. Anybody know how I can go about that or are you just going to tell me to buy a tuner? That thought crossed my mind but I wondered that the tuner is just going to build on the base programming which is some 25hp short to begin with.

[maddenjr]

I have a 450 also and when you go to a tuner like spartan or h&s they are starting from scratch so you origional base tune is fully gone and means nothing. Hope this helps and im running a spartan 300 tune and some minor work and im running mid 13's on 22.5 Alcoas

[Metalingus]

Cool. Thanks for the info. That does help. Didn't even think of it that way really. I always just thought the tunes modified the base tunes and built upon them.

[Dylan08]

Tuners just save the stock tune and flash a new one into it.