V&H Basic Slip ons

hdrider07

I have a 2007 ultra classic. I am wanting to put on the Vance and Hines basic slip on mufflers. Has anyone put these on? If so did you have to remap or anything else to the bike? Thanks

Hobbit

any thing that alters the fuel mixture will require a mixture change to stop it running to lean.
As long as you are changing nothing else you may get away with just the slipons but knowing how freeflowing V&H are i would suggest holding fire and getting a TFI and air filter kit and doing a complete stage 1 as the big will run better for the upgrades

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smitty901

Hobbit and I agree on this one:
If you going to change the pipes you can "get away with no change in fuel"
You may also get away with robbing a bank that don't make it a good idea.
Second if you are like most you will end up do a full stage 1 anyway .
TFI is basicly Foolproof and gives you a lot of felex with no extra cost.
find the slipons you like the looks and sound of do a little home work install it all yourself easy to do and be done with it. IMO
good luck with the project

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R. Lewis

I have a 07 U.C. myself and 3 wks. ago my indy. put on V&H tapered slash cuts on. Also had the Arlen Ness big sucker and V&H fuel-pac put on. So far I am pleased with the sound and preformance. NOW my scoot was stock until then and I do not have any experience with other product(s) out there.

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glide 33

I have the same set-up on my '02. V&H slip-ons, big air filter, & a V&H fuel pak. Love the sound and performance, BUT, dont like the 10 to 12 mpg loss on my fuel. Vance & Hines said this is to be expected.

Rod Stewart

Glide 33;
I don't get why adding free flow exhaust and less restrictive air cleaner would kill your mileage. That makes no sense assuming you are riding it about the same way.
I wonder if that fuel module is running too rich?
Are your pipes black inside?
What do your plugs look like?

I did a 95 inch kit on my '04 Classic with 203 cams, slip ons, K&N air cleaner and Teclusion module a few years back, and I don't think I lost any mileage at all.

Rod

glide 33

Makes no sense to me either. I rechecked my settings 4 or 5 times, got mad and unhooked the fuel-pak. Rode it unhooked for a month or so, but got a little scared about running too lean. Hooked it back up, rode and rechecked mileage, 12 mpg. difference. Finally called V&H, told them my problem. They said that was normal. Was thinking about getting the programmer that Glider recommends, but need to wait awhile before I spring it on the little woman.

smitty901

Your wondering in the right direction the setting on the fuel pack can boost the power on the bike a fair amount that will inturn effect fuel milage.
Good fuel manager allows you easyly choise a balance .
Not everyone that does a stage1 and fuel pack is looking for maxium power.
Often they are looking to reduce heat and get a boost along with it

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Sharky1948

"Free flow exhaust" means more air. More air means leaner mix. The ECM or fuel module needs to compensate by adding more fuel.

Likewise, "less restrictive air cleaner" means more air. More air means leaner mix. The ECM or fuel module needs to compensate by adding more fuel.

Plus, MoCo ECM is programmed to run lean to meet EPA requirements. Aftermarket fuel modules (e.g., FuelPak, TFI, etc.) run richer to make the engine run cooler and add performance.

Add it all up and you get less mileage.

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Scubadog

The ability to make custom adjustments seems to make sense to me, so I went with the PC III. I can make changes that match my particular riding style. I can even make changes on the road with a 9V adaptor. It's a simple USB hook-up and definitely not rocket surgery. I bought it pre-mapped to run with my Rinehart TD's and am happy with both the performance and MPG. My stock 08 UC averaged about 46 and now I get 42. So adding more fuel to compensate for the lessened restriction of the Rinehart exhaust resulted in slightly less MPG. No big deal. A more than fair trade off for the decreased heat. Why pay for a dealer download when you can have adjustability and a simply plug and play unit for $280.

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