812 without GPF or with? Is there power difference?

Right on Karl!
I think you are right about all of that. I haven't found any data on SVJs having GPFs installed despite those details but who knows why it is!
I have seen some unfortunately out there write OPF/GPF in their descriptions as a loose translation for cats, but that of course is not exactly correct. In any case, sounds good to me!
As an aside isn't your car the one Scuderia did the videos on for the Novitec setup? If so, didn't you do the sport cats on your car? Or was it the cat delete option?

 

Yes, that's my baby! It has 100 cell sports cats (Novitec), X pipe and Novitec rear boxes. It sounds epic, especially above 7k revs. However, as noted above, it is very loud from outside the car so in retrospect I'd probably leave the cats as stock standard.

Cannot wait to get my GTS, do the exahust mods (X pipe and Novitec rear box) and be blasting down a country road, no roof..... seems like a parallel universe given the current state of the world.... !

 

Loved watching those videos. And the fact it kept going back for more...
How different was it for you on the boxes/x-pipe vs boxes/x-pipe/sport cats? It's so hard to tell on the video as it is just a "revving contest" and not under load/power rolling which would have been great to compare. Do you have any other examples of those?

 

I agree, you need to drive it and be blasting up a hill (or better yet through a tunnel...) to properly judge. I don't have any before and after videos unfortunately. From my experience, the main difference the sports cats make is just sheer volume - a lot louder at idle, cold start, and under load than with 'just' x pipe/boxes. Whether the sports cats make it too loud is obviously a personal preference.. but if you live near others and have early morning starts you will be out of the running for 'Neighbour of the Year 2020' that's for sure.

 

Sounds good, thanks.
Are you trading the 812 for the GTS then?
And would love to know the difference between the 812 and GTS with the GPF (both with and without the setup you have).

 

Lamborghini's for EU and NA dont have GPF yet. I have a 2020 on order, and it was confirmed with factory as it is a deal breaker. Only for Asian market apparently

 

Well that is horrifying....

 

This weekend, I spent a solid hour researching GPF; listening to F8s, Romas, Evos, R8s, ... cars I am familiar with to some extent from their previous generations. Per some other people's observations what you seem to lose the most is the natural cracks, barks, and that deep to high pitched crescendo of sound. In summary pitch changes are less distinct and volume increases seems to be unaffected at the top of the rev ranges but more muted down low. Further to that I was corrected in my initial presumption that my Porsche Speedster has GPF, it does not, it has mimic pressure plates that are not as intrusive as GPF but have an affect on the sound - wondering if I can remove. Long and short, if GPF is an issue can an exhaust modification fix that, we will see.

 

The guys at https://www.jcr-developments.com/porsche told me the 991 Speedster has GPF, and they are working on a exhaust solution to delete it without having to tune the car. So I guess other exhaust Ferrari specialist will at some point have a solution to GPF cars.

I just bought an exhaust form them for my 991.1 GT3 RS

 

Sorry but those tuners have no clue what they're talking about, and neither does the poster. No Lamborghinis as of yet are fitted with GPFs not even the Huracan EVO. They got around that!
Also it is impossible for that Aventador to have a GPF because the Lambo V12 has multi point (port) injection. I will explain why further down.

How, you might ask, Lamborghini got around the new regulations?

The Huracan has a dual injection system port and direct. GPFs are only mandated for cars with gasoline direct injection engines. The Huracan as such manages to slide in just below the threshold needed for a GPF. Also it is my understanding that only GDI engines produce significant amounts of particulate matter, port injection engines do not, hence the uselessness of fitting them with a GPF.

I too am extremely bothered by this stupid regulation, even GDI cars, produce 90-95% less particulate matter than an equivalent diesel. Ok I get the need for a filter on diesels but putting them on gasoline engines is imo ridiculous especially on sports cars. These should have been exempted from this.

Now the question is, can Ferrari on its next generation of internal combustion engines go back to using port injection to avoid muffling their cars? They will likely be petrol-electric hybrids going forward, so why not? I suspect DI produces more horsepower but that should be well compensated by adding a hybrid electric engine. Any other major advantages of DI vs port?

Lots of confusion on this thread. People saying what they think not what they know. The above are the facts of the matter.

And yes some countries have heavy penalties (very few including jail) for removing particulate filters. This is not new, it's been around since they became mandatory on diesels, more than 15 years ago.

 

And I saw articles in the UK saying the UK are working on sound cameras to target people who modify their exhaust. So in the future people willing to remove GPF might not be that easy... but that could be pure speculation

 

I saw someone posted the factory schematics but I can’t find them now, did you see them?

 

This is a fact in London. They are located in central London, in the area where people typically rev their Lambos while stationary (those clever, clever men). If you drive at normal revs I don't think you have any cause for concern, even in a car with GPF removed. Besides, there are only a handful of noise cameras in known locations, so easy to avoid.

 

Interesting priorities for the city...