i read on here that someone raced a 1.4 civic, the starlet having the mani mod and the civic pulled away in the same thread another person said that the mod like mani, filter and zort could make the n/a starlet run lean so changing to the larger injectors should cure this, if i had a n/a starlet i would transfer all the stuff from the corolla and test but i have a glanza v 1st gen produced 99 bhp (74 kW) @ 6600 rpm and 86 ft·lbf (117 N·m) @ 5200 rpm. 2nd gen produced 88 bhp (66 kW) @ 5500 rpm, but with a slight increase in peak torque 87 ft·lbf (118 N·m) at 4400 rpm the torque gain of 1 ft-lbf is nothing but the fact it peaks 800rpm sooner is were the gains are seen I'm more than sure a mixture on both gens parts like 1st gen injectors and tb maybe ecu with the 2nd gen intake and exhaust maniz could see some impresive gains