boost activated or electronic QTP cutouts FTW. as Kev said, "best of both worlds."

i used the QTP one and couldnt have been happier.

 

Is that setipextremely loud on open throttle? Also how much does that cost?

 

My setup isn't bad at all. I daily my car and can actually drive it pretty aggressively (strong partial throttle) without having it sound like a bat out of hell.
The cutout starts to open around 6 psi and is fully open at around 14.. So on my car that means full throttle and around 5 krpm or so..

 

I bought my cutout from sound performance..
It's a little pricy..(400-450) and I paid around 1200 for it any my downpipe to be made including materials.. Yea the shop I used is expensive but they do top notch work.

 

Im interested in how my invidia n1 single will sound when I go FI , I dont think it can get any louder lol