i have a ej25 sohc in car now and found a ej20t for pretty cheap. but i wasnt sure of a few things. should i go with the ej20t will transmission i have now bolt up fine, or should i just go with a newer ej25 dohc. for the cost difference im leaning towards the ej20t... but am i selling my self short, the difference in price is around 1200-1500 bux. any advice would be greatful!