I just ordered some Vance & Hines twin slash slip-ons for my '13 Breakout. Do I need to have a fuel management system and re-tune at this point or is that just necessary after upgrading the air intake?

 

No now...

Wait until you do the intake.

 

By no means do I mean any offence but I think we must be getting close to needing a sticky on this subject so people have something to refer too.... this same question comes up every week.

And for an answer... what TheTroupe said

 

if that's all your doing you don't have to. I would putt on a high flow air cleaner, and get a dynojet power vision. this will wake up the bike and cool it down.

 

No tune needed for slips. But a world of difference when you add a breather, pipes and a tuner.

 

NO, and NO. if U don't do anything else, just a down load will also work. Some are not changing anything even with pipes and AC mods on the newer bikes. But U'll still be running epa lean, which makes a hotter running motor vs a tuner motor.



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Might as well clarify for changing the pipes also cause you know that's coming next.

 

I may catch a little heat for this but I disagree. Here's why. The factory settings on these new 103s is already super lean. Even a minor change like a slip on, you're going to lean the bike out even more. And as far as I know, the V&H slip ons don't have cats so you're removing the cat to boot, right? Not knocking on HD (but I kinda am), I'd almost recommend putting a tuner on the stock engine let alone one with any modifications no matter how small.

Here was my experience with the V&H slip ons. I put them on my slim before I drove it off the dealer lot. From the beginning, the bike ran super hot and popped like crazy. Tuner and the air cleaner changed all that. My mechanic at work was saying how the bike running pre-tuner could potentially be doing damage to the engine.

I know everyone says, wait until you change that air cleaner, etc. but I would say save yourself a little headache and put a decent tuner on right off the bat. You can change setting as you add and your bike will run well from the get-go.

 

Makes sense and it certainly wouldn't hurt, because you know nobody stops at just slip-ons...