Did a search but not really anything solid came up for my question. I bought a 2004 Road King. When I took the AC cover off I found a Harley K&N stage 1 kit. I just installed some slip-ons and got an almost new Power Commander 3 from a friend of mine that I havent installed yet. Bike runs good but pops through the exhaust when I let off the gas to shift and on decel. My question is when I install the PClll does it matter if the bike had a stage 1 flash from the dealer previously? Thanks for any help.....

 

I doubt it will affect much. If you add 8% (8) at the 0-1750 RPM table you'll eliminate the popping during shifting you mentioned. You may be able to download free maps from the Dyna jet website.

 

Yeah I have the CD with all the Maps on it and theres some that seem to match pretty close to what I have. Thanks for the reply.

 

It won't matter to the PC3 if your ecu has the stage 1 download. Some PC3 maps already take that into consideration and some don't. The description of the map should tell you if it is for stock tune ecu or stage 1 download. Try a map each way and see which runs better. The maps will (or might) get you closer to a good tune but there's no substitute for a competent dyno tuner.

 

Thanks for the advice. I did notice some had with ECU tune and some didnt. I'll take your advice and try both ways and see what works best, thanks.