installing slip ons
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Cruiser
Joined: Mar 2006
Posts: 219
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installing slip ons
I called the dealer and asked them if I would have to have my bike remapped if i installed a set of slip ons..... she said I would need it remapped, and i would need to add a new air intake....... the bike is fuel injected.
Is her info correct? she said the bike would run rich if i didnt have it remapped
Is her info correct? she said the bike would run rich if i didnt have it remapped
RE: installing slip ons
The info is not exactly correct but it is recommended. Prior to 06 you could change your pipes without remapping your ECM. The 06's are already so lean that many of them don't run correctly stock. If you change anything at all it makes a difference on these bikes. If it were me I would do the intake and pipes at the same time. Don't even consider the download from Harley. Have them install a SERT (Screamin Eagle Race Tuner) or Power Commander (PCIII) so you can tune the bike properly and get rid of all the lean conditions caused by the EPA.
Ultimate HDF Member
Joined: Feb 2006
Posts: 5,939
Likes: 3
From: TX
RE: installing slip ons
Yes. Think of it this way...
You are opening up the exhaust so that the engine can "exhale" better. You also need to open up the intake so it can "inhale" better. The reason it may tend to run rich w/ pipes and map (but now Hi-Flow filter), is that fuel delivery is "adjusted" (increased) but the bike physical ability to suck air in has not changed. THe result "can" be more fuel than air - proportionally speaking...
You really need all three.
The mapping can be accomplished a number of way: Stage 1 flash on ECM, Power Commander, S/E Race Tuner. Stage 1 is cheaper, but less precise and far less flexible.
You are opening up the exhaust so that the engine can "exhale" better. You also need to open up the intake so it can "inhale" better. The reason it may tend to run rich w/ pipes and map (but now Hi-Flow filter), is that fuel delivery is "adjusted" (increased) but the bike physical ability to suck air in has not changed. THe result "can" be more fuel than air - proportionally speaking...
You really need all three.
The mapping can be accomplished a number of way: Stage 1 flash on ECM, Power Commander, S/E Race Tuner. Stage 1 is cheaper, but less precise and far less flexible.
Thread Starter
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Cruiser
Joined: Mar 2006
Posts: 219
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From:
RE: installing slip ons
Thanks fellas,,,,
my bike is an 06 standard fuel injected....... guess i'll just wait till i feel like spending a lil more money and get the air intake/pc all at the same time......
i was trying to accomplish a deeper sound for only a few hundred bucks-- looks like its outta the question
garrison
my bike is an 06 standard fuel injected....... guess i'll just wait till i feel like spending a lil more money and get the air intake/pc all at the same time......
i was trying to accomplish a deeper sound for only a few hundred bucks-- looks like its outta the question
garrison
Road Warrior
Joined: Aug 2005
Posts: 1,545
Likes: 5
From: NEW LENOX, IL
RE: installing slip ons
I tried just the exhaust for sound even though I had the SERT but was gonna wait until my 1000 miles before dyno tuning. My bike backfired and ALOT of popping on decelration. I would not recommend doing just the echaust unless you plan on doing it for a couple weeks until dyno tuning.
Outstanding HDF Member
Joined: Oct 2005
Posts: 2,981
Likes: 1
From: Los Angeles, CA (live in Manteca, CA)
RE: installing slip ons
Ditto!
ORIGINAL: terryt1955
The info is not exactly correct but it is recommended. Prior to 06 you could change your pipes without remapping your ECM. The 06's are already so lean that many of them don't run correctly stock. If you change anything at all it makes a difference on these bikes. If it were me I would do the intake and pipes at the same time. Don't even consider the download from Harley. Have them install a SERT (Screamin Eagle Race Tuner) or Power Commander (PCIII) so you can tune the bike properly and get rid of all the lean conditions caused by the EPA.
The info is not exactly correct but it is recommended. Prior to 06 you could change your pipes without remapping your ECM. The 06's are already so lean that many of them don't run correctly stock. If you change anything at all it makes a difference on these bikes. If it were me I would do the intake and pipes at the same time. Don't even consider the download from Harley. Have them install a SERT (Screamin Eagle Race Tuner) or Power Commander (PCIII) so you can tune the bike properly and get rid of all the lean conditions caused by the EPA.
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Road Master
Joined: Mar 2006
Posts: 791
Likes: 0
From: Arizona
RE: installing slip ons
ORIGINAL: CHEYENNE
I tried just the exhaust for sound even though I had the SERT but was gonna wait until my 1000 miles before dyno tuning. My bike backfired and ALOT of popping on decelration. I would not recommend doing just the echaust unless you plan on doing it for a couple weeks until dyno tuning.
I tried just the exhaust for sound even though I had the SERT but was gonna wait until my 1000 miles before dyno tuning. My bike backfired and ALOT of popping on decelration. I would not recommend doing just the echaust unless you plan on doing it for a couple weeks until dyno tuning.
One note: don't get suckered in by an HD dealer that you need to have Stage I download done. That's a waste of $150 you don't need to pay! All the download does is allow your engine the ability to go to 6500 RPM, before the safety cut-off. Stock engine will go up to around 4400RPM before cutting off.
Spend the money and do the Dyno! You'll see the difference!
Kahuna
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