i think 215 40's maintain about the same rolling radius iirc.. and are cheaper than 205/45's
however the book wont list anything as they are not standard fitment...
i would go wit hthe manufacturer recommendations of tre pressure.... or bung in around 30 PSI if that is within the range
EDIT - i thiunk on OE 17's you would be on 205 40's.. dont think 215 quite fit... as are too wide...
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Mods Fitted
Pipercross Filter; Full 2.5" 'Wingy' exhaust; Donny Custom Turbo outlet pipe; Custom injectors;
Uprated gearbox bearings; Helix Clutch; Quaife ATB; Upgraded clutch Hydraulics; FMIC; Ported Head; ARP headstuds; Leda coilovers; 'Brembodge' 326mm disks/DS2500 pads
Dieselpowered
Fitting Custom Hybrid Turbo (1856GTBv) & controller; Remap, swirlpot, lift pump
AMW Motorsports
Custom exhaust manifold & downpipe
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