2020 catless Tri

[PosseRider]

So, one guy saying can be done without a tuner,one says you need a tuner. M8, Stock exhaust & no mods at all . Anyone do this w/o a tuner & if so any problems. ??

 

[ROAD DOG]

So, one guy saying can be done without a tuner,one says you need a tuner. M8, Stock exhaust & no mods at all . Anyone do this w/o a tuner & if so any problems. ??

I Have done a half dozen no tuner, & had no problem, But a good tune will make it run better & cooler .

 

[rhino 2]

So, one guy saying can be done without a tuner,one says you need a tuner. M8, Stock exhaust & no mods at all . Anyone do this w/o a tuner & if so any problems. ??

Depends on why you’re removing the cat if you removing it for heat on the foot‘ No you don’t need a tuner.. If your removing it for performance yes you probably should use a tuner….

 

[Old Road Dog]

I have not done it on my M8 because it dosnt bother me. I did the cat removal on my Dyna 33.5 seconds after it arrived home. No tuner/ stage 1 till later. Not the same motor I know. I think if your gonna go through the trouble of removing the cat might as well do a stage 1 and be done with it. A breather bypass is also smart money. See DK Customs web site.

 

[nucseal]

I did this on my 20 Tri awhile ago and no tuner.

 

[Mykneesbehurtin]

The newer bikes have a good deal of self adjustment in the ECM, I have done several myself without any issues. DK Custom did an article on this subject I do believe, my train of thought is. The 02 sensors are ahead of the cat so any change by removing the cat would be minor.

 

[PosseRider]

The newer bikes have a good deal of self adjustment in the ECM, I have done several myself without any issues. DK Custom did an article on this subject I do believe, my train of thought is. The 02 sensors are ahead of the cat so any change by removing the cat would be minor.

Just have to find one now that has the time. My guy in Richmond has no mech, now but himself & is swamped. He said maybe late Oct .

 

[Mykneesbehurtin]

Just have to find one now that has the time. My guy in Richmond has no mech, now but himself & is swamped. He said maybe late Oct .

Hardest part is getting the mufflers off.

 

[Marc H]

I remember a thread with Kevin and Fuzzy talking about doing something that let the comp relearn after doing minor stuff and that it made more of a difference than they would have thought.

 

[Jack Klarich]

I remember a thread with Kevin and Fuzzy talking about doing something that let the comp relearn after doing minor stuff and that it made more of a difference than they would have thought.

Harley ECM have adaptive learning programed into them, The M8 Delphi systems have more than earlier models

Doing away with the cat will not hugely affect these bikes/ trikes, the O2 sensors will still send required info to the ECM