Originally Posted by swiss370Z

Hi all,

I have with me (in combination with the STILLEN supercharger) installed the following version:

F.I. TDX with 18 "resonator
F.I. HFC with resonator

Without the HFC no dron in the inside. Outdoor deep and loud. A sensational sound!
With the HFC is a dron in the inside at 2'000 r / min. Outdoor deep and very loud!
My neighbors are in the kitchen the dishes out of the closet!
With a standardized measurement, we measured 108 decibels at idle speed 900 r / min!

I must say that the supercharger kit increases the volume a bit!

Enclosed is a film (from minute 2) where you can hear the whole thing.
F.I. TDX 18 "resonator and F.I. HFC with resonator

Nissan 370Z STILLEN Supercharger & F.I. CBE 18" - YouTube

Hope to have helped so?

Greetings from Switzerland
Ivo