Ferrous, You get an "A" on this one...
Drag pipes May sound great But they change the entire FLOW of things...
There are Big Name BUILDERS that have problems with in and out flow and fuel, torque, power.. Many don't use a drag pipe . Proper back-pressure is not usually obtained when SOUND is the most important issue..
Now that's no help to you I'm sure. Nothing You wanted to hear BUT,,,,. Drag pipes are for Draging. and then I would not use them....
$$$$$:newsmile093:$$$$$:newsmile093:$$$$
signed....BUBBIE