Best tuner for 2004 chevy 8.1L?

[recycleoldgrowth]

Wondering what you all think would be a good tune for my gas hog. Not looking to brake the bank here. Tell me what you know about what the gains may be, thanks in advance.

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[Searay45db]

This is like asking which is better, Ford or Chevy on a GMC site I use In Tune i2. Reason I use this is because it holds 5 licenses, can put ford or dodge on it as well. Also lots of custom tunes, although GM does a nice job of maxing the tune out of their engines. So GM vehicles get the least amount of benefit for GAs. Ford, different story. Bear is also a top tier system. Lots of Bully dogs, you can get custom tunes. I like mine as I said, I sell license's to friends and it has paid for the unit, they get a good deal, and I get my money back. Everyone wins.

 

[o_fatmike_o]

the 40417 bully dog GT has some pre loaded tunes which are nice but only about a 15 HP gain . but depending on year can do minor transmission tuning and on some disable AFM . Also they support custom tunes which can boost power more .

*** nm didnt realize it was the 8.1 till after i posted . BD only tunes 4.8l 5.3L and 6.0