pcm for less
Not a good experience for me. I had a FI application. I purchased software and flashed PCM myself. Now I know what PCM_for_less did with the flash. He played it safe, and, performance/ power really suffered. Nobody can bat 1000. B.
I can vouch for Bryan@PCMforless as well.
Good service.
A suggestion I have for you, OP. You can get a baseline tune from him once you tell him your mods, then if you want a better tune, you can order a cable from AKM cables, and free logging software and do a few runs in your car while recording the data on your laptop, some driving, a few WOT blasts, then send Bryan the information and can troubleshoot things with you and send you a new updated tune via email which you can then upload into your pcm. I did this and picked up a few hp on the dyno.
But as the poster before me said, for big cars with big hp numbers like with blowers or turbo, I would get a dyno tune, but he has done ALOT of LT1's you can't go wrong for a mildly modded car imo.
Good service.
A suggestion I have for you, OP. You can get a baseline tune from him once you tell him your mods, then if you want a better tune, you can order a cable from AKM cables, and free logging software and do a few runs in your car while recording the data on your laptop, some driving, a few WOT blasts, then send Bryan the information and can troubleshoot things with you and send you a new updated tune via email which you can then upload into your pcm. I did this and picked up a few hp on the dyno.
But as the poster before me said, for big cars with big hp numbers like with blowers or turbo, I would get a dyno tune, but he has done ALOT of LT1's you can't go wrong for a mildly modded car imo.
I have been using Bryan for over 7 years and the same for all my other buddies. Bryan will be able to get you the best numbers possible with a dyno tune, but his mail order tunes are great as well! 
Jeff

Jeff
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i had good results with him also
obviously the best option for safety and power is a dyno tune, and i would highly recommend that, but this will do pretty well and most people do not report too drastic of a change going from a custom flash to a dyno tune. most people
obviously the best option for safety and power is a dyno tune, and i would highly recommend that, but this will do pretty well and most people do not report too drastic of a change going from a custom flash to a dyno tune. most people


