Ford Mustang Forum banner

1 - 3 of 3 Posts

·
Registered
Joined
·
65 Posts
Discussion Starter · #1 ·
Does anyone have the Borla full exhaust cat back system including x pipe? The Borla CSR sent me an email stating performance improvement of 5-7% for 2011 Mustang? Are you seeing that? Does that make sense? Do you know the Borla pipe sizes verses stock? These systems are very expensive (~$1250), not sure it is worth it $$, but 5-7% performance improvement would help justify the price. I have been told FRRPP, Shelby oem some of their parts from Borla. Thanks.
 

·
Banned
Joined
·
1,506 Posts
I can't speak to the Mustang, but I had the aggresive Borla cat back system on my last car. I never had it dynoed, but a lot of guys that had the same system did and found out that while they gained HP they lost torque. Modern engines are developed and use some back pressure. Eliminating back pressure is not always a good idea unless there are other mods planned in addition to the cat back. Just a heads up for you.
 
1 - 3 of 3 Posts
Top