Hello All,

I have read all over this forum and the internet about installing slip on's and not having to reprogram my bike. I installed 3" V&H's slip on's and the bike seems to run great. Everything I can read and understand says NO PROGRAMMING is required. But my buddy was at the local Harley dealer this week and he told me the service manger says that I need to reprogram or a valve or something can burn out?? I did not go any smaller or bigger on the size of muffler I am using so I am confused on whether or not I need to take any action??

I would appreciate any input on this matter.

 

When I installed SE slipons, I had no issues whatsoever. Never did a remap. IMHO if it's running ok, don't bother with a remap.

 

The bike does seem to run great!! when I decel it has a little rumbling type "pop, pop, pop" Not the pop of a backfire but like an old muscle car hot rod sounds like with a great exaust on it. I do not hear anything out of the ordinary. But, when he said that something could eventually burn up I am very PARANOID!!! If anyone else could weigh in on this matter and make me feel better about not taking any action I would greatly appreciate it.

 

Think of it like this...

You didn't do anything to let more air in, so your fuel / air mixture is basically the same. You relieved some backpressure so that has changed some things, but really not enough to affect the fuel / air mixture as it was probably too bottled up anyway.

When you let more air in with a high flow air cleaner, then you drastically change the A/F mixture and will need to tune it.

 

That makes sense to me. I guess I won't worry about it unless it starts running like crap. I would think if it's running good it is not creating any problems with the internal motor. But then again I am as mechanical as a toe nail!! Also, I would think if my air fuel mixture was off it would throw a code in the diag section??? I don't know if it would I am just guessing like any Toe nail-ish intelligent person would lol

 

Any slight changes made by installing the slip ons should be gradually compensated for by your ECM. It might start to run a little better with a few miles.

 

I have vh slip ons and i didnt remap...bike sounds and runs great but wih a bit of decel pop

 

It won't throw a code and it would be possible for a good running bike to be doing damage at the same time like if it was running too lean, but you shouldn't have anything to worry about with your setup.

 

I just ordered some slip ons..I was told I need gaskets for them. but have not seen anywhere that they are needed..do I need them?

 

No...the only gaskets are at the headpipe.