Woundering if anyone has installed a SC and which one.

I am debating between the AA C38 or the VF engineering.
both stage 1.
I have an E36 M3 98

Are there any other better choices for a stage 1. I cannot afford turbo btw or a twin screw.

Also anyone have the Stromung exhaust... How is the Drone at about 75 mph.. I am turning about 3300 rpms.

thanks everyone