Reviving this thread and will paste below Scuderia Systems' (Tubi's UK agent) description of the product...and yes, they do mention 2 versions:
Information on the Options
There are two options of exhaust system for your Maserati
- Tubi Normal
- Tubi Rumore (LOUD Version)
Both of these systems refer to two rear replacement Tubi mufflers - replacing the rear mufflers alone is as much as we would ever recommend as well - certainly to start off with. Some people have later requested Tubi mid pipes to replace the centre muffler but this is rarely done, as doing so increases the volume dramatically to the point where the whole car isn't just loud - it's uncomfortable.
The Normal system on the Maserati 4200 is awesome enough - essentially the system makes the car sound like a more muscular version of the V8 Ferrari F355. Tubi Style are mindful of the fact that this is a GT car that *may* be used everyday so although the sound is loud, it is still not deafening.... Their objective has been to make this Maserati sound like a Ferrari (the engine is a Ferrari one after all) so it's deep and throaty at low rpm developing into deeper more incredible V8 roar with a slight HOWL at high rpm. The sound SUITS the car and will not, like other brands, make the car irritating to drive on a daily basis.
It requires no invasive work to install - no cutting or conversion - bolt-on, bolt off fitment. It looks nicer too with slightly enlarged polished circular end tips which are internally perforated to hone the exhaust note a little further.
The loud version of the system really is quite aggressive and probably a bit too much for some owners. It's not wild or obnxious but it's always noisy, so order this if you are be dedicated to engine sounds, because the car is NEVER quiet - it sounds wonderful but do be sure you want a LOT of aggression if you order this system.
It will give the 4200 a small increase in BHP also - around about 12hp.. but you'll have to be a great driver to notice this!!
The system is fully grade 302 Inox stainless steel. Tubi Style manufacture the exhaust systems for the Ferrari F1 team. They're based in Maranello next to the Ferrari/Maserati plant and their products are actually sold through the Ferrari/Maserati dealer network in the USA, Canada, Germany, France and Italy. They supply Ferrari/Maserati with the more aggressive system fitted to the Maserati 4200 Gran Sport and the Ferrari 575M HGTC - in fact they do ALL of Ferrari/Maseratis competition work.
Tubi Style
Although there are many sports exhausts brands available for Maserati, no sports exhaust system is genuinely comparable to a Tubi Style. We are the suppliers to the factory MC12 Corsa team for their racing exhaust systems and manifolds - we even developed and built the systems for GranSport and GranTurismo and even the road going MC12 and are ourselves located in Modena, Italy and are actually dealer supplied/fitted options in the USA, Canada, France and most of Europe. To be honest, it's the closest thing to a "factory" Maserati sport exhaust system and we honestly think it's the best sounding exhaust in the world bar none.
