Just wanted to add this to those who have/planning the Kinetix Plenum v4, the factory strut bar needs to be adjusted since it will be a tight fit after the installation and I had a **** of vibration and noise inside the vehicle in open throttle before it was corrected. Setup was simple, it was a B replacing the cat though, other than that it's a sweet sound along with Borla full catback exhuast. Now, I'm just waiting for the JWT TT and be all smile!
Edit: Spoke with Chris at Kinetix, he said FI is fine as long as it doesn't exceed 10psi, so this may not be for everyone. No, me no mechnic ...but could had been.