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Old 11-07-2019, 02:11 PM   #7
Therumblebox
Scooby Newbie
 
Member#: 477751
Join Date: Nov 2017
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I had an issue practically identical when I did my 3 port ebcs. I ran a grimmspeed unit on a cobb OTS tune, and it ran terrible. Boost would spike up to target perfectly, then it would drop off and feel almost like I was hitting a wall, then bounce back and forth. The issue ended up being the tuning of the ebcs, a retune fixed that issue for me.
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