Hey guys,

Will installing test pipes on my borla exhaust give me any significant hp gain? I also already have a z tube and jwt pop charger installed.

 

If you tune it, and you don't mind the smell or the fact that your car isn't CARB legal anymore, then go for it. But you won't see any major gains without the tune.

 

Borla definitely added power. Then I put on test pipes and seemed to add even more up top. Took both borla and test pipes off and feel slow with the stock setup now.
I just really like the stock sound. I plan on getting a y pipe and HFC. Hopefully that'll match the power gain of the borla exhaust.