Had a KB cai on 04 cobra when I bought the car. Its the 4" corragated flex hose, inner fender style with 12" K and N filter. Just installed a 2.6 KB and the Idle is not good. Tuner did not like the flex hose, and the bends in there kit. Said it sends bad air flow to the mass air meter? Took it off and installed another customers K and N [ cold air kit]. This kit sets inside the engine bay. Idles good now. Was always told not to run this style on these cars because it pulls the hot engine bay air into blower instead of the cooler fender air. Car makes 605 rwhp. Dont want to move the mass air now that its been tuned. So what do you guys recommend for a CAI for this H.P range?