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Old 04-11-2021, 12:58 AM   #23
C-dah
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Member#: 510246
Join Date: Dec 2019
Default Did u fix the droning issue

Quote:
Originally Posted by suprabats View Post
I have a 3" maddad whisper on a bugeye wagon (207 uel headers) w/catted stromung midpipe, catless stromung dp. It drones way too much on the highway and is slightly louder than desirable at cold idle.

I'll be swapping to EL twin scroll and adding a helmholtz resonator for the drone. You can make one or see this product (http://my.prostreetonline.com/2014/0...ne-resonators/)

If that's not quiet enough will also add an oval straight through resonator and matt the wagon back.
What king of setup u got running on ur wagon and hp. I’m trying to get the droning down in my bugeye wagon and quiet my exhaust. I’m running no name catless dp, homemade tgv deletes, 1050 id, amr 3” inlet, 1.5 dom, stromong 3” catback, stock ej20, 06 sti 6 spd, 07 sti diff
Makes 301 hp and 280 torque before I did the sti drive train.
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