Most for my money

Have you read any of the stickys? There's a lot of good info up there, and it would help you to start formulating your own plan. If you start doing random mods, you're probably going to end up wasting money. And I guarantee, asking "what mod should I do first?" is going to yield $17,285 worth of suggestions...
The best suggestion I could give you would be to read up on LS1Tech for about a week, ask questions if anything isn't clear, and then decide for yourself what your first mods are going to be.
Also, don't forget to
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but only from listening to all the great people on this site would I be given heads up to this. If you end up doing headers, it could drastically affect the sound of the exhaust. Cutout could affect it too. Not that its a bad thing, just be careful and keep this in mind, as future mods could change the sound and maybe get you different numbers with the choices you make with the exhaust now and future mods. Just a heads up. 




