In my thinking the TB spacer won't do one damn thing to the vehicle they are on. Good or bad, so they are about inert.
BUT the K&N may harm the vehicle. As the oil wears off the K&N allows larger particles, than a stock filter, of dirt to enter the engine. Also the oil can and does screw up the maf. Besides that harm the only gain from one is the noise they might make after the stock intake silencer is removed.
Big JIm <img src="/forums/images/graemlins/pfft.gif" alt="" />


professional bovine relocation specialist