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Originally Posted by KILLA BEE
ugghhhhh and ugghhhh again  . SO BASICALLY, as Im new to all this DYNO,MSD, ARH, etc etc etc, talk......... the STOCK box is good but an aftermarket is better in the long run for modding?
The STOCK muffler your saying to keep over AFTERMARKET if you have NPP? (what about at least getting rid of the huge dumpsters for mufflers with an axleback)
The DRY Rotofab filter is overall better and gives the most gains?
please clarify this Im hungry, aggravated and just wanna get some pancakes to calm my nerves after reading those charts.      |
GM did an excellent job with the stock cold air intake for a stock engine. As your modifications continue to increase the mass air flow potential of your engine you will begin to see the limitations of the stock intake. What essentially happens is you start seeing measurable pressure drops through the system. Pressure drops mean there is a restriction limiting air flow. On a FI application this is quite significant. If you retain the stock intake you will be leaving HP on the table. There is a link on the forum showing very significant gains on a FI car going from stock to their unit.
It is also important to mention that the Roto-fab unit does not cause any appreciable MAF output error. If you are concerned about not having to tune right now Roto-fab is an excellent choice!
Tim