D darookie scooter street racer 15 October 2008 #1 how do these pipes differ ,RPM range ? which would be better for street race 70cc making max torque at 10,000 and max rpm at 11, ooo rpm, thank for your response. Last edited: 14 January 2011
how do these pipes differ ,RPM range ? which would be better for street race 70cc making max torque at 10,000 and max rpm at 11, ooo rpm, thank for your response.
tiba_karotsu OVERREV TUNING 22 October 2008 #4 Evo1 exhaust, that pipe is torquey but no go above 12000rpm. Evo2 is better.
