The post below is based on the change tracking in the FIA tech regs document. The previous regs are on another laptop so I've not done a side by side check - apologies if I've got this wrong!
Just seen this pre-emptive move in the tech regs ...
5.6 Exhaust systems :
Engine exhaust systems may incorporate no more than two exits.5.6 Exhaust systems :
They've also updated the rules about aperture sizes to prevent those long slits for the shark gill openings. The underlined words are new:
3.8.5 Once the relevant bodywork surfaces are defined in accordance with Article 3.8.4, apertures, any of which may adjoin or overlap each other, may be added for the following purposes only :
- single apertures either side of the car centre line for the purpose of exhaust exits. These apertures may have a combined area of no more than 50,000mm2 when projected onto the surface itself. No point on an aperture may be more than 350mm from any other point on the aperture.
- apertures either side of the car centre line for the purpose of allowing suspension members and drive shafts to protrude through the bodywork. No such aperture may have an area greater than 12,000 mm2 when projected onto the surface itself. No point on an aperture may be more than 200mm from any other point on the aperture.