I also have the 103 stage 2 kit in mine ,But i can tell you its nothing compared to the stage 4 kit,My local dealer has just put one in a new fatbob and it sounds and goes like a fuckn racecar !!!!!!!!!!!!!!!!

 

 

Hi Scotty,

I test rode a 103 Stage IV in a cross bones before I went for the 110 RaceKit in mine, the 103 IV is very strong and should give you 100+/100+ when tuned in (this one had 108hp/103ft). They sound really strong with the open heads, bigger throttle body and 260 cam and pull hard in 1-3 gears. Only went with the 110 for the extra roll on (lucky enough to test ride a worked 110 SE Springer on the same day!!). The Stage IV kit is really good value for money and should not cost you much labour as all top end. 

Cheers. 

I Got one coming on my new wide glide in about 3 weeks
Got a link here for pdf with install and parts list
http://www.harley-davidson.com/en_US/Media/downloads/Service/isheets/-J04802.pdf

the stage 4 kit is good for a factory kit i rode a dyna with it aroumd 110 hp ,with vances racing 2in 1 system loud and quick compared to wat i ride .probably the best kit done by the factory

so how much is it a complete kit or do you need to buy other stuff?

Ah the long time art of answering a question with another question , oldie but a goodie , this round goes to you sir, tip of the hat.

SE 103" Stage 4 KIT on the new wide glide is up and running. Had it dynoed after 500Ks and got 112/109

will have another shot after 3000 or so and hope to get 115 or more. Happy as a pig in shit. Added v&h long shots and roller rockers

 

Any ideas on what a 103 stage 4 kit costs supplied & fitted?

I am looking at either getting T/B and heads done on my bike or the below kit from USA. I currently have intake, andrews 211 cams and long shot exhaust, this is on a 2010 softail custom. Bike is making 87hp & 92tq.

http://www.fuelmotousa.com/107kit.htm