what speed is the speedo out does your gps read , think it was tt regs mimes about 4 mph sometimes 3 , think its safer to levae the speedo out so you have less chance of been done by camers all speedo are some out ,
307-405 and celica are all 3-4 over and 944 is 2 mph out and combi vans even 5 out. if you like me once you know how far it out you travel at the right speed. but i still do the 4 under going thought camers just to make sure
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