Capristo Exhaust Installation - Need Help

I am replacing my old exhaust with a Capristo Stage 3 exhaust. I have a 1995 355 Berlinetta. The Capristo has an additional fitting near the flange on the top bypass intake that the old exhaust does not have. Does anyone know what this is and what I should do with it? Does the 5.2 have a fitting that is not on my 2.7?

The first picture below is of the old exhaust and the last two are of the Capristo exhaust.
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Thanks, capped it off and it is working great!

 

To be honest, there is no comparison. The Capristo is all that I had hoped for. I had test pipes with the Quicksilver so it was louder at low rpm, but not as sweet at the high rpm. I put the cats back on with the Capristo. It is actually quieter at idle and with the bypass valve closed, but once the bypass valve opens up...OMG! The Capristo is more of an off and on sound.

I will get some videos, but it will be awhile as I have some long hours coming up at work and then rain in the forecast.

That is great! Could I interest you in coming out for one of the FOG drive and breakfast? It would be great to have stereo nero 355 Capristos!

 

Sorry for the delay in getting videos posted. Here are a couple, more to come.

http://www.youtube.com/watch?v=4I4PdCZj7JM

http://www.youtube.com/watch?v=zs-ZXyCVytM

 

More time consuming than difficult. It took awhile to find some basic information such as jack points http://www.ferrarichat.com/forum/showthread.php?t=230774&highlight=jack+points+355,
lug nut torque settings (I found 70 to 85, it set them at 80)
This tread also helped for the bumper removal
http://www.ferrarichat.com/forum/showthread.php?t=268033&highlight=remove+rear+bumper+355
and muffler removal
http://www.ferrarichat.com/forum/showthread.php?t=279551&highlight=remove+rear+bumper+355

This was the first time I have worked on my 355 since I bought it a year ago. I spent a lot of time running around getting tools and looking for the plug outlined in this tread above, several hours, and I took off the straight pipes and put the cats back on. Altogether, it took me about 10 hours. For someone that knew what they were doing it is probably a couple of hour job, it that. I did it by myself. It would have been helpful to have another pair of hands (ie one person to hold the exhaust and another to bolt it on).

I also put on the standard wireless remote control for the bypass valve. Most of the time was finding the correct parts to hook into. The actual job is less than an hour. For anyone putting on a Capristo, I would recommend this as you can have that "Capristo sound" all the time for the drives where you want it.

I have more details and photos if anyone is interested.

 

My solution was not ideal, but during the weekend. I could not find the metric cap. I ended up getting a female/female fitting that was metric on one side and standard on the other end. They had a standard plug that screwed into the female/female fitting. I found these at an auto parts store. I used mild thread locker so they would not vibrate out.