DYNO graph of recent tuning session with Jacob's K03/K16 v2 aka "Tribrids"...
#23
![Default](https://www.audiworld.com/forums/images/icons/icon1.gif)
But I can say that plugs can NOT hurt
I'd look at boost control first with regards to that dip.
I found these IK22 on Ebay for a great price. So good, in fact, I bought a set for myself
<ul><li><a href="http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=33693&item =7961639792&rd=1&ssPageName=WDVW">http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=33693&item =7961639792&rd=1&ssPageName=WDVW</a</
![Wink](https://www.audiworld.com/forums/images/smilies/wink.gif)
I found these IK22 on Ebay for a great price. So good, in fact, I bought a set for myself
![Smile](https://www.audiworld.com/forums/images/smilies/smile.gif)
#25
![Default](https://www.audiworld.com/forums/images/icons/icon1.gif)
I had to disassemble mbc's a few times to keep that from happening
A bent MBC spring could cause this too.
![Wink](https://www.audiworld.com/forums/images/smilies/wink.gif)