I appologise for getting off topic, but......
All the so called restrictors are straight through and just muffle the sounds, yes they are narrower but with any CAI you are not going to see much benefit unless the engine is tuned to the CAI which means reprogramming the PCM to account and benefit from the additional flow! Who is going to do that?
However, I am looking forward to macsters data which will be great info and set us/me straight!
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