Folks,

New dude here... I know there are a million discussions about adding a heavy breather. I am going to do a Stage 1 in full here soon when I do my 10k service. That said, I have a great deal on a brand new Screaming Eagle Heavy Breather intake. If I bolt this thing on now, with no pipes (stock exhaust) and no tuner, am I going to jack anything up? Will there be any improvement/issues. I'm not looking to do it for looks, looking for performance. That said, I acknowledge this is only part of a stage one and the full stage 1 is opttimal, the rest will come later (pipes and tune). Thoughts? Thanks for your help.

 

The instructions that came with my SE heavy breather ('06) states it needs a tuner. Factory motors run lean, a freeer flowing AC isn't going to help that. If your looking for performance, wait and do a full stage 1 at the same time.

My 2 cents, YMMV

 

You can install it now if you wish. It's not gonna jack anything up as long as you're running the OEM exhaust.

 

I've been doing it for the last 10 years, but did put on a Dobeck TFI to stop the lean surge. The surge was there even before the A/C change.

 

I would wait and do it lol at once. Or if you want to do the a/c now do a programmer at the same time and use one that you can update the map as you go. I know the FP3 will let you do that and I think the power vision will also. Even a stock bike can benefit from a programmer because they are so lean from the factory

 

If your bike has O2 sensor, I don't think you need to do anything, just install it. O2 sensor will send signal to ECM to add fuel if necessary.

 

The o2's will signal the ecm to the point of running at the same lean condition as the factory setting if you are planning more upgrades I think the benefits of a upgradeable programmer would be worth it. Your gonna need one sooner or later anyway. Just my opinion