I have a 06 Heritage and I am looking at some mods. I had the Stage1 kit installed when it was new. I would like to know if there is some other small mods that I might do from here. I am looking for more power. I have tought about having the 103 kit installed. Also would I be better to let a Harley dealer do it or an aftermarket place? The bike still as about 5 months warranty left.

 

Installing a 103 kit would not be a small mod. Not sure if you are looking for low cost power gains or just asking what can you do (reguardless of price) to gain power.

 

HD seems real high to do mods in my opinion. Ask around about a good local independent shop.
The best performance gain you can probably get without doing cylinder and head work is to install a cam. That takes you to "stage II".

 

SE 203-204 cams or equivalent with a good tuner module will take you to the next level.

 

do a nice 95 build i am planning 95 10 to1 cr flat tops (hoping for a 8.8-9 to 1 CCR) with head port &polish TW37B changing the engine sprocket out for a 24t evo one and inverting the tensioner to raise gearing slightly also getting work done on manifold and the cv should make alot more than hds 103 and parts should cost under 900 dollars.