Comments on: Are there any mods that need to be done to air/fuel mixture when changing pipes on fuel injected Harley?

By: JetDoc

JetDoc — Mon, 27 Jul 2009 20:30:14 +0000

It’s interesting that the dealer will happily sell you (and even install) Harley-Davidson brand custom pipes and mufflers, but aftermarket pipes that are just as good will void your warranty… Maybe it’s time to find another dealer

By: Maximus

Maximus — Mon, 27 Jul 2009 20:30:14 +0000

the pipes should come with setting recomendations

By: eldoradodave

eldoradodave — Mon, 27 Jul 2009 20:30:14 +0000

Well I can tell you I know of 3 Harley dealers here in the tri-state that as long as they do the work and you buy a program chip to re-map the air/fuel mixture going to the F.I. Your warrenty is still good. Yes yo do need to re-map with electonic fuel inj. when you penup the exhaust

By: bound

bound — Mon, 27 Jul 2009 20:30:14 +0000

You need to upload a revised performance program into the bike’s computer. You can get that from J & P Cycles.

By: a

Mon, 27 Jul 2009 20:30:14 +0000

One cool thing about Harley’s is that the factory is not going to void your transmission warranty for modifying your exhaust. Talk to some other dealers about "flashing" your control unit. It is a 20-30 minute procedure. You need to change you air/fuel ratio in order to accept the free flowing exhaust. Do it. You will gain performance.
One other option, get a power commander installed when you change your pipes. This is more common than changing handlebars. Have an independent shop with a good reputation take care of the service. Look for a shop with a dyno to dial in the work. If anything ever goes wrong with your engine, put the old parts back on and take it back to the dealer.