So, I've come across what look to be two different types of OEM Intake tubes. One set of the corrugated tubes has side holes which connect up to a "silencer" box. The other set is also corrugated but doesn't have the additional holes to hook up to the silencer box. Can anyone tell me why the difference and which years/models used which? My primary interest in knowing which was original on my 96 GTS, but it'd be helpful to know why there were 2 styles:
Just straight tubes - no extra hole
Additional hole to hook up to "silencer" box:
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