Spectre Cold Air Intake review with some user observations.
Installation went well with a few exceptions. First, the heat shield is too tall for the 2000 4Runner. Leaving one screw attached I lowered the shield to allow the hood to fasten down. It is loose but the lowered hood keeps it from moving. Second, the shoulder bolts on the band clamps bottomed out before they tightened down securely. I will have to buy full thread bolts to secure the air tube to the intake manifold. Performance seems to have increased a bit after a few days.
I wanted to add a little more power to my v8 4Runner. I read some reviews, did some research and settled on the Taylor Cable. I notice a pretty big torque gain with acceleration and lower gears. I installed the spacer after installing a K&N cold air intake, new exhaust, and a performance MAF sensor, so I'm not sure if the spacer makes a difference or not just throwing it in a stock vehicle, but I like it along with my other upgrades.