so got borla headers recently installed.but im pretty sure there was no gain in hp!not noticible anyways.maybe even feels slower than usual.anyone know what im doing wrong with this?i have the injen ses exaust.feels like it lost something off the start

 

The only thing you could of done wrong is installing them, maybe a leak? Headers FTL, you found out the hard way.

 

Borla headers have had a poor reputation here for years. With claims of members speaking with David Borla where David admits that the headers do nothing. Nothing verifiable from David Borla of course.

And members installing Borla headers, and showing a horsepower loss. But never posting before and after dynos.