Again. The higher octane fuel, the higher power and torque. I'm not surprised that someone's doesn't hit 290 km/h (180mph) by stock M3 if refuelin' 91-octane urine.
So let's go back:
Quote:
Originally Posted by EddieGTRS
I created this topic for one reason: what's the true top speed when speedo shows 340 km/h, dyno 320km/h, GPS 310km/h?
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