Header Swap...Need Map?

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Jul 9, 2013 | 07:51 PM

Skippy97

Thread Starter

Cruiser

Joined: Jan 2012

Posts: 135

Likes: 0

From: Bristow, VA

Header Swap...Need Map?

Hey All, and thanks for the help.

I have a SE Heavy Breather and V&H slip-ons. Already had a dyno tune with a SE Racing Tuner.

Bought the bike in Cali, and I don't want the catalytic converter anymore. Want to get new V&H headers. Catalytic is making it super hot on the back of the legs and for the passenger.

So, recommendations on whether I need to get another tune? I assume I'm opening up the air a bit more on the back end, but is it necessary to get another tune, especially since I had a SERT dyno with the SE Heavy Breather?

Thanks for the help!
Skippy

Jul 10, 2013 | 07:54 AM

kojak

Seasoned HDF Member

Joined: Jan 2007

Posts: 5,604

Likes: 4,045

From: Virginia

Yes, changing headers is a bigger impact to how your motor will run than what you've done so far.

Jul 10, 2013 | 09:26 AM

senna

Road Master

Joined: Apr 2012

Posts: 1,096

Likes: 17

From: San Jose

If you are going to have to dyno it again you might as well go ahead and put in new cams then have it dyno'ed. You will be much happier in the long run.