While the stock intake system is adequately suited to support up to stage 1 power levels that does not mean there is no performance benefit when upgrading to the Dinan system. Besides its jaw dropping appearance the biggest advantage of the system, by virtue of additional and optimized flow, is the reduction of the pressure depression in the stock system. This equates to the turbo having to work less in order to achieve targeted power. With the turbo working more efficiently this also means a lower pre-turbine backpressure, lower turbocharger shaft speeds, lower turbocharger compressor discharge temperatures, and for the ability to achieve higher boost pressure levels. Paired with the natural improvement to throttle response, a bump to the acoustics, and an unequalled visual appeal the Dinan F9x X5M/X6M carbon fiber intake system can wear the self-appointed moniker of "masterpiece" without trepidation.