Enough Bashing. I have a Hennessey 600 supercharged with the Roush tuner kit. IT RUNS GREAT... no problems at all. over 19,500 miles in first year with the Landrush 1000 and the Snoball 500. This is very fast and air filter is no worse than any others. Roush uses a k&n element with roush logo on it. Put a prefilter sock on it if you want. This system uses a plastic intake tube, aluminum intake tubes are not recommended due to heat. If you run offroad things get dusty and dirty, you cannot stop everything unless you keep it on the road.