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Discussion Starter #1 (Edited)
So I installed the pipe yesterday, remove the cat, cables, disabled the Servo motor with the Woolich system.

She runs a little rough now especially when the throttle is held steady and she reaches speed for that setting. She also likes to lope when idling.

I'm sure this will smooth out after I run the log box on it and wideband 02 sensor to get a good map.

For now, I put the small restricter in the muffler for now and that smoothed things back out. Of course that quieted it down a little too :grin2:
 

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I had the same issue with the Graves. Runs fairly okay with the cork in but pretty rough with it out. It's actually over in Indiana getting tuned right now.
 

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Why dont you try it with the servo plugged back in just to eliminate that as an issue.
Other than that its probably because youve removed the back pressure by removing the butterfly.
I kept one in my gen4 and it runs so good
 

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Discussion Starter #5
Putting the servo motor back on would do nothing...since the valve is not there any more. It is of course the back pressure, just need to find the time (and good weather) to run the log box for a decent map.
 

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Putting the servo motor back on would do nothing...since the valve is not there any more. It is of course the back pressure, just need to find the time (and good weather) to run the log box for a decent map.
I meant maybe the ecu isnt liking the fact its not plugged in. Why not just try it. It takes 5 mins
 
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