I ordered the HKS RS kit and it is taking too long to get here so I am about to cancel the order. I was looking for another intake to get and I was looking at the Buschur Mass Air Pipe & Filter Kit. It said that "We do not recommend this pipe unless you're running a speed density setup." I was wondering what that meant.

The other mods that I am putting on this Saturday are:
Greddy Ti-C exhaust
Injen downpipe
Helix testpipe
HKS SSQ BOV
Boost controller
A'PEXi grounding kit
Walbro 255LPH fuel pump

 

its recommended that u keep the stock intake pipe on there and buy there filter and adapter kit... some intakes cuz of the length create a stalling promlem.... what they are referring too is switching from ur mass air flow senser to a speed density senser. im not too familiar with it cuz i havent looked into it that much...