Healtech ESE - Flapper Valve Delete

bazwp · Mar 29, 2014

I have purchased a Healtech ESE - so I can delete the Exhaust Flapper Valve action without getting codes etc.

If anybody has done this can they advise where I find the plug for the servo motor for the flapper valve?

cape821 · Mar 30, 2014

bazwp said:
I have purchased a Healtech ESE - so I can delete the Exhaust Flapper Valve action without getting codes etc.

If anybody has done this can they advise where I find the plug for the servo motor for the flapper valve?

Rather than go through all that trouble... take off the stock slip on, dremel the two tack welds holding the screws to the flapper, take the screws out, and then pop the flap out. Quick fix, no errors, servo is still connected.

Dryer · Mar 30, 2014

Looks like a few folks over on ducati.ms believe you dont need an addon to prevent throwing codes.

Why remove the flapper valve? - Ducati.ms - The Ultimate Ducati Forum

NiceweatherManni · Mar 30, 2014

I just removed the cable from the flap at the muffler and I got no code since 1500km

Monstard · Apr 14, 2014

i also disconnected the cable from the flapper couple of hours ago. turned the key on, usual whirring of the flap motor, booting of the dash lights, started the bike and no errors. will ride it later during lunch break and see how it goes

Momfer · Apr 19, 2014

NiceweatherManni said:
I just removed the cable from the flap at the muffler and I got no code since 1500km

Is the sound or reaction of the bike any different then before?

weilrennwagen · Apr 23, 2014

I read that the flapper valve is made to lower the noise at low RPMs. Which explains why it's loud at idle, quiet at low RPMs, and loud at high RPMs when more flow is needed. It shouldn't really affect performance noticeably...

suprphreak · Apr 23, 2014

Seems odd they would do this, and it wouldnt affect tuning at all....?

weilrennwagen · Apr 23, 2014

suprphreak said:
Seems odd they would do this, and it wouldnt affect tuning at all....?

A lot of BMW cars have this. Search the 'golf tee mod' and it's very similar, except they use intake vacuum to actuate the valve instead of a motor.

Monstard · Apr 25, 2014

Momfer said:
Is the sound or reaction of the bike any different then before?

no noticeable performance change, not even fuel efficiency

as for the sound, can't really tell when i'm riding the bike. perhaps when i let someone drive the bike past me... but then again, i've never had an off-bike sound experience so i wouldn't even know the difference

bottom line: nothing changes by just removing the cable. so i think i'll just reconnect it. makes me feel better that everything in the bike functions the way it was designed to.

Top Gromen · Apr 25, 2014

cape821 said:
Rather than go through all that trouble... take off the stock slip on, dremel the two tack welds holding the screws to the flapper, take the screws out, and then pop the flap out. Quick fix, no errors, servo is still connected.

This ^^^

Dryer · May 6, 2014

Top Gromen said:
This ^^^

I removed the flapper plate yesterday by removing the screws and have noticed the following: (Still stock exhaust)

1 - Significantly smoother throttle response from 2500-5500 rpm. Less jerky on/off and smoother acceleration forward at light throttle inputs.
2 - Less engine braking.
3 - More sexy exhaust noise when engine braking.

I haven't really noticed an increase in loudness while cruising though. Placebo effect might play a role here but it just seemed easier to maintain speed at <5000rpm.

porkrind · May 6, 2014

So just as an experiment, I disconnected the cable from the flapper valve and fired the bike up. Now, I didn't let it idle long, but I noticed that after giving the throttle a hearty blip a couple of times, the revs hung on much longer than normal. Like a gummy throttle or an older car with too stiff of a dash pot holding the butterfly open. Real disconcerting, I put the cable back on right away.

This happen to anyone else?

NiceweatherManni · May 7, 2014

This happens when the bike is standing. Mine does it, too. It needs more time to "calm down" when you pull the throttle in neutral but only when I get highter than 4000rpm or something.

But when you drive there is absolutely no difference.

Healtech ESE - Flapper Valve Delete

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