Review on Spearhead MT-050 Max Thrust Performance Engine Air Filter: Power Boost & Acceleration Enhancement for All Vehicles by Eddie Burgess

I bought this filter because it was so cheap and I needed to replace mine. Result. The seller had a claim that it increases performance. I know your engine will lose performance with an old air filter, so I figured that statement was just stating the obvious. But I have to say that I feel the engine is a bit more powerful than with the new air filter from other brands. The difference is small but enough to notice, so I think there might be some truth to that statement. I will definitely buy this filter again.