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[dm930]

I bought my '15 CVO SG with Vance & Hines power duals and the Screamin' Eagle Tuner.  Does this mean they are not just slip ons and they are headers as well?  See pics of actual bike...

 

[dm930]

Another view...

[harleyrules]

Yes, you have headers.

[dm930]

Yes, you have headers.

When headers are installed, is it common or required to dyno tune the bike?  He had the Screamin' Eagle Tuner he sent with it.

[Asphalt_Cowboy]

When headers are installed, is it common or required to dyno tune the bike?  He had the Screaming Eagler Tuner he sent with it.

Yes, anytime head pipes are installed it needs to be tuned. That's why you have a tuner. If the stock headers were on there and you only changed mufflers, then no tune needed.


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[dm930]

Yes, anytime head pipes are installed it needs to be tuned. That's why you have a tuner. If the stock headers were on there and you only changed mufflers, then no tune needed.


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So when the seller told me it has the Screamin' Eagle Tuner, does that mean it was actually tuned on a dyno or could it be tuned without?  What I've learned is that in order to get any decent tune out of any vehicle, it needs to be dyno tuned, just like my race cars.

[Asphalt_Cowboy]

If it has the tuner, it was on the dyno.  No one in their right mind would spend the $495 or what ever they are and not use it. If the bike is running fine, it was tuned. With headers on it, you would be able to tell if it wasn't tuned.


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[Asphalt_Cowboy]

Did he have all the documentation for the bike? Just curious as most people save their dyno sheets.


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[dm930]

Good question.  I'll know that answer as soon as the bike arrives off the carrier.  Should be within 2 weeks.

[bakon]

Bike doesn't need dyno tuned with just head pipe and slip ons IF they used the right download from the screaming eagle tuner (or other tuner for that matter). Harley has plenty of set ups for that bike including cams and heads , just select the correct one for the set up and load to ecm. Zippers does same with their set ups.  Be close enough to run without problems.
Sure more can be squeezed out on a dyno but not necessary

[dm930]

Bike doesn't need dyno tuned with just head pipe and slip ons IF they used the right download from the screaming eagle tuner (or other tuner for that matter). Harley has plenty of set ups for that bike including cams and heads , just select the correct one for the set up and load to ecm. Zippers does same with their set ups.  Be close enough to run without problems.
Sure more can be squeezed out on a dyno but not necessary

Thanks!  That's good to know about this.

[tervonenllc]

I bought my '15 CVO SG with Vance & Hines power duals and the Screamin' Eagle Tuner.  Does this mean they are not just slip ons and they are headers as well?  See pics of actual bike...

Hello, your question is a bit difficult to understand. In any event, based on your images, you have V&H Power Duals and based on the shape possibly V&H High Output mufflers. In other words, Power Duals is the name for the "x-pipe" header from Vance and Hines.

[Cvostu]

So yes.  Not just slip ons.  That's an exhust system sir. . . And you should get it properly tuned for best results. .  Stuart

[dm930]

It has the screamin' eagle tune.

[Fired00d]

It has the screemin' eagle tune.

Did previous owner provide a dyno run sheet of the tune?

 
Ride Safe,
Fired00d