4B12 INTAKE MANIFOLD THINGS TO KNOW BEFORE YOU BUY

But In case your exhaust is simply too significant, ie: It really is more than 2.five inches bore, you will lose a great deal of your move fee and finish up missing electric power and torque.Altering valve durations can alter the torque band and on most engines the exhaust and intake durations don't have to match, although most cams and tuners use