Iv'e been told by more than dealer you are better off to leave it an 883. It will sell better as such, plus the upgrades you can do to the stock bore are endless. I own a 2007 883 with just a full stage one upgrade that will rock your world! I'm not kidding. Get a good set of tuned pipe's, if it's efi, go with a fuel pack or something similar. there are a bunch out there. If it's carb, you will need to re-jet. Now the air cleaner is another story. I put on a SE air cleaner every time I checked the plugs they were way too rich. Ended up hand building an AC from a 87 2.8 blazer AC from a K&N filter in my old truck. If you like I could send pic's of how I did it. The plug's are perfect now. With a set of V&H short shots you can hear this 883 almost a mile away. NO JOKE! Hit it back, let us know, Keep it in the wind, HOLLYWOOD..............................