Are you saying the Flashpro tune makes a certain intake flow better?

 

^^^ it wont make it flow better but it will certainly gain more HP from the intake....

and while we are on topic of OEM vs Aftermarket....OEM flows perfectly well for a unmodded car....the minute you mod/port and polish the manifold or get bigger TB or dive into head work, the main that why the redline is at 6700 rpm, is because AIR....you wont be able to get enough air through to keep the engine revving higher....

now that bring us to Dual TB's and to ITB's....