The ARP piston compressor is a must-have for any high-performance engine builder. According to my experience, this compressor delivers unmatched power and reliability that meets the demands of performance car enthusiasts. The precision-engineered design ensures that the piston moves smoothly resulting in a uniform compression of the fuel-air mixture. This compressor is also built to last, thanks to its durable construction and quality materials .The only con is its slightly high price. However, considering its performance capabilities, its worth spending a few extra bucks..