All you need now is the right tyre

Porsche AG recently conducted sufficient modern tyre formula testing to issue a new report on modern tyres on classic Porsche models. The report covers all models but Ive exerpted the 928 details here.

 

 
Michelin Pilot Sport 2

928

 

Size	RO	Axles	Tyre Size	Tyre Brand and Tread Designation	Spec	Dry	Wet	Vehicles
7Jx16	65	FA/RA	225/50 ZR16	Pirelli P-Zero Asimetrico	N3	++	++	928 78 - 82 models
				Bridgestone Expedia S-01	N2	0	+	928S 80 - 86 models
				Bridgestone Potenza S-02	N3	++	+++
				Continental ContiSportContact	N1	++	+++
				Michelin SX MXX3	N2	+	+
				Michelin Pilot Exalto PE2	N0	0	+++
7Jx16	65	FA	225/50 ZR16	Michelin SX MXX3	N2	+++	++	928 GT 89-92
				Bridgestone Expedia S-01	N2	++	++	928 S4 CS GT 89
				Bridgestone Potenza S-02	N3	+	+++
				Continental ContiSportContact	N1	+++	+++
8Jx16	52.3	RA	245/45 ZR16	Michelin SX MXX3	N2	+++	++
				Bridgestone Expedia S-01	N2	++	++
				Bridgestone Potenza S-02	N3	+	+++
				Continental ContiSportContact	N1	+++	+++
7.5Jx17	65	FA		Bridgestone Potenza S-02	N3	+++	+	928 S4, CS, GT 89, GTS
				Michelin Pilot Sport PS2	N3	++	++
9Jx17	55	RA		Bridgestone Potenza S-02	N3	+++	+
				Michelin Pilot Sport PS2	N3	++	++

Key: 0 = satisfactory; + = good; ++ = very good; +++ = excellent
Note: Only tyres of the same make, with the same specification code (N0,N1,N2,N3) may be used on a vehicle