A borla question
Thread Starter
Instructor
Joined: Feb 2005
Posts: 247
Likes: 1
A borla question
When you look at the borla stingers with that coffee can type muffler how does such a smaller looking exhaust allow more exhaust out then the much larger looking stock exhaust ?????
Le Mans Master
Joined: Sep 2007
Posts: 7,604
Likes: 8
From: Belleville Il
To the point,,pipe diameter,,and flow path. Borla,,full 2 1/2",,straight through flow. The stock muffler is deceiving. Only the inner half serves as the flow part of the muffler,,the outer half is a big resonance chamber. The stock also reduces pipe diameter as it gets inside the muffler,,and has a VERY convoluted flow path. After seeing a pic of the inside(Patches posted one a couple of weeks ago) it's a wonder these cars run as well as they do with stock mufflers!!
