I totally agree, I really enjoyed mine @7psi, I now have a diy turbo and in a way I miss the M45, when I was running the M45 I had a hydra with 440cc RX8 injectors, DDM works airbox, 62.5mm nose pulley and a TDR intercooler. Sadly I also had a full 2.5" exhaust and the exhaust was just to loud for my taste. The same exhaust with a turbo is nice.