I installed a Perrin Exhaust System it sounds perfect, not to loud. I noticed that rpm in my car gain faster, that mean more hp or not ? I dont have no dyno facilities around my area.

I am using a k&n drop in filter because i tested with a RMR cone filter but i feel that in hi rpm about 5800 my car drop power and i have better result with this k&n. This weekend i will try again with the combination of this exhaust system and the RMR filter to see the results.

 

Contgrats on your new exhaust. Will you be testing it out on the dyno or dragstrip? I just got a cat back exhaust done a couple of weeks ago and my car pulled much harder when I added my K & N drop in filter.