What specific parts need to be changed to take stock 612 exhaust to HGT sport level?

I assume headers and initial CATS are the same? What is the difference? Anyone have the part numbers?

Thanks!

- Jason

 

Thanks Taz. So the rear boxes are the only thing that got changed? No change to the pipes off the headers with the second cats?

 

Also, did the HGT exhaust have active valving or were they "solid state"? Thanks.

 

Finally, what model year did they start offering the sport exhaust on the 612? Were there Ferrari 612 OEM exhausts that had that same "propeller" look that weren't the louder sport version?

 

OK, so it looks like anything with the sport exhaust also had the valves. If you added the sport exhaust, what else do you need to add to operate the valves? I assume there is plumbing but where is the control knob or button located? Or would you ever really run it in the closed position so would it make more sense just to force it open (especially if you are buying them to get more sound out of it relative to stock or Tubi)?

Thanks guys.

 

Thanks Taz.

Any reason I'd want them closed? Based on what I've disclosed about my sound preferences and the fact that the Tubi cans I have on are a bit quiet for my preference? I.E. would you say just install and leave open?

 

Also Taz, with respect to the silver mesh used in the rear bumpers on the HGT cars, is that to help hide the valving better or to just change up the look? Was it also matched with some silver meshing up front or was that it? Wondering if I would want to change that out.

It looks like my car is provisioned with the plumbing and mounts for attachments to the valves on a sport exhaust.