Hi! and welcome to the forum from Nashville. With customizing your XD, the possibilities are endless. With that said, it all depends on your intended use and budget. I will give a little quote that my Auto Shop teacher once asked me..."Speed costs money! How fast do you wanna go?"
First of all, welcome to the forum!!!
Most people would suggest a trigger job. I personally don't have one, it is the first "aftermarket" thing I would like to do to my XD. Powder River a sight sponser has a DIY trigger kit that's supposed to be pretty easy or you can send your XD to them or a host of many others.....Back to SA, Springer Precision, Canyon Creek, just to name a few.
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