[SwaggyAT]

I’ve been thinking about getting the Yoshimura slip on and have been hearing that an ECU flash or tune wouldn’t be required if I go this route. However, I watched an install video and they had to disconnect the servo cables from the can so I am assuming the cat is in the can itself. If the cat is essentially getting removed, how is a tune or flash not required?

Heres the video

 

[Hood]

The cat is before the silencer/valve and remains unless you fit after market headers.

 

[SwaggyAT]

The cat is before the silencer/valve and remains unless you fit after market headers.

Ah ok makes sense. What about the disconnecting of the servo cables? That wouldn’t effect how the bike runs or cause some engine lights to turn on?

 

[Hood]

Not sure, doesn't seem to harm as most aftermarket silencers don't have valves and people either just disconnect the cables or remove the servo and fit a servo eliminator from Healtech.
I went SC Project, it has a valve so..

Pic below showing where the cat is.

 

[SwaggyAT]

Not sure, doesn't seem to harm as most aftermarket silencers don't have valves and people either just disconnect the cables or remove the servo and fit a servo eliminator from Healtech.
I went SC Project, it has a valve so..

Pic below showing where the cat is.

View attachment 80383

Makes sense. How do you like the SC Project? I imagine it’s the loudest option (which I would prefer). Yoshimura has a nice sound from videos but not sure if it’s much louder than stock

 

[Hood]

Makes sense. How do you like the SC Project? I imagine it’s the loudest option (which I would prefer). Yoshimura has a nice sound from videos but not sure if it’s much louder than stock

I like it but it is not loud. It is slightly louder than the oem but not a huge amount but it does, at least to my ears, have a nicer sound. I do not personally like excessively loud exhausts so...

 

[SwaggyAT]

I like it but it is not loud. It is slightly louder than the oem but not a huge amount but it does, at least to my ears, have a nicer sound. I do not personally like excessively loud exhausts so...

I see, I assumed that SC were always the loudest option but guess it differs bike to bike. I’ll have to research more

 

[Hood]

I see, I assumed that SC were always the loudest option but guess it differs bike to bike. I’ll have to research more

They do Rally exhausts that are loud but are not road legal, at least here. That doesn't stop most people however

 

[SwaggyAT]

They do Rally exhausts that are loud but are not road legal, at least here. That doesn't stop most people however

That might be legal where I live, I’ll look into that!

 

[Hood]

This is mine, sound not the best but gives an idea.

 

[don67]

I miss the good old days of simply drilling out the stock exhaust to make it louder, and then adding ear plugs because your ears won't stop ringing

 

[AT-Dragon]

I’ve been thinking about getting the Yoshimura slip on and have been hearing that an ECU flash or tune wouldn’t be required if I go this route. However, I watched an install video and they had to disconnect the servo cables from the can so I am assuming the cat is in the can itself. If the cat is essentially getting removed, how is a tune or flash not required?

Heres the video

I believe you can disconnect the cables and the valve just stays open or they also make a bypass plug for it, if you take it off..

 

[Smxhuber]

I believe you can disconnect the cables and the valve just stays open or they also make a bypass plug for it, if you take it off..

Correct, I have the Yosh slip on and just disconnected the cables, easy - no tuning or ECU stuff needed as Hood said. I did end up installing the Healteach servo eliminator to clean things up a bit but it isn't necessary. Sounds good but not loud just deeper and you can install a spart arrester if needed.