My new exhaust should be here tomorrow and I was wondering if I will have any problems running it without ecu upgrades.

I got the Vance and Hines twin slash slip on's. I read many things saying that just slip on's should be fine without other upgrades but then I was asking around at the Harley dealership and was told that my bike wouldn't run well without a fuel pack or something similar.

What do you guys think? Will just swapping the slip on's give me trouble?

 

Just slip-ons shouldn't be an issue. Every bike is different though, so you never know.

 

agree- you will likely be fine... however imo the bike needs fuel management whether you do anything to the pipes or not! it runs too lean and just seems like a waste of a great engine with the lean setting. i put a techlusion system on mine that allows me to set the fuel with carb like settings. after enrichening the engine this machine performs like a whole different bike. my fav mod by far.

 

I have V&H twin slash slip-ons runs just fine with no fuel tuner does pop a little but that's normal for any bike with modified exhaust

 

Awesome! I will end up doing the upgrade in the future but I was looking to give this a run for a bit first. Thanks guys I will post an update after the install.

 

Well I got the Vance and Hines slip on's today and when I opened the box I was pretty pissed to find that the heat shields that were in the description were not the ones pictured at DennisKirk.com. I still installed them and man am I happy I did. They sound amazing. The bike is running great without any ecu upgrades. They sound very mean. I definitely recommend them. I will probably end up wrapping my headers with some DEI wrap or something similar.

 

Did you want the chrome ones? Wrapped headers would look good with the black slip-ons

 

I wanted the full black heat shields like in the picture on the Denniskirk website. I figure the black wrap will look just as good if not better. Now I just have to sort through the pros and cons of wrapping my exhaust.

 

Hey i was looking at getting a pair similar to these. Did they give you any performance? Im in the same boat as you these are just for now till i get enough doh for the full pipes i want.

 

That's normal for a bike without modified engine management, but is not good IMHO!

Stock bikes run very lean to meet EPA regulations, but as wanabe says even a stock bike will benefit from an ecu, to restore air/fuel ratios. It is not just a heat thing, the bike will run better all round, especially with a change of mufflers!

Our bikes are very refined beasties these days and backyard tuning is a thing of the past. We need to get smart!