![The cure for drone-- 1/4 resonance pipes aka J-pipes aka Helmholtz tubes - LS1TECH - Camaro and Firebird Forum Discussion The cure for drone-- 1/4 resonance pipes aka J-pipes aka Helmholtz tubes - LS1TECH - Camaro and Firebird Forum Discussion](http://www.cadillacforums.com/forums/attachments/2009-cadillac-cts-v-performance-mods/96693d1346186459-muffler-delete-helmholtz-pipes-v-exhaust-installed-c_sm.jpg)
The cure for drone-- 1/4 resonance pipes aka J-pipes aka Helmholtz tubes - LS1TECH - Camaro and Firebird Forum Discussion
Exhaust Recommendations (Preferably w/o drone) | 2016+ Honda Civic Forum (10th Gen) - Type R Forum, Si Forum - CivicX.com
![Solo Performance Axle Back Exhaust System 5.0L Ford Mustang GT ( 2011- | Juggernaut Performance Inc. Solo Performance Axle Back Exhaust System 5.0L Ford Mustang GT ( 2011- | Juggernaut Performance Inc.](https://cdn.shopify.com/s/files/1/0406/3395/8556/products/978.jpg?v=1593134984)
Solo Performance Axle Back Exhaust System 5.0L Ford Mustang GT ( 2011- | Juggernaut Performance Inc.
![The cure for drone-- 1/4 resonance pipes aka J-pipes aka Helmholtz tubes - LS1TECH - Camaro and Firebird Forum Discussion The cure for drone-- 1/4 resonance pipes aka J-pipes aka Helmholtz tubes - LS1TECH - Camaro and Firebird Forum Discussion](https://ls1tech.com/forums/attachments/cadillac-cts-v-2004-2007-gen-i/609879d1501326500-cure-drone-1-4-resonance-pipes-aka-j-pipes-aka-helmholtz-tubes-img_20110205_210528.jpg)
The cure for drone-- 1/4 resonance pipes aka J-pipes aka Helmholtz tubes - LS1TECH - Camaro and Firebird Forum Discussion
![The cure for drone-- 1/4 resonance pipes aka J-pipes aka Helmholtz tubes - LS1TECH - Camaro and Firebird Forum Discussion The cure for drone-- 1/4 resonance pipes aka J-pipes aka Helmholtz tubes - LS1TECH - Camaro and Firebird Forum Discussion](https://i.imgur.com/hWmrzD1l.jpg)