Hey I just installed my headers, it is a custom built header similar to the racing beat header. The header are connected to a 1 foot resonator then to the my single Kakimoto Exhaust.

Anyways I'm wondering what are the gains you found after installing the header? And what were the losses.

Also the sound of the header after 3400rpm is terribly loud!, I noticed I lost my loud pop when I shift at higher revs. I only hear is a loud phmmmp.

 

I noticed a slight gain, mainly higher in the rpm range. Seemed to pull harder and slightly further than before. I really didnt notice any losses... Yea, its pretty loud