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DIY Stock Intake Mod

39834 Views 90 Replies 34 Participants Last post by  foreverkidd
Hi Guys,

Well, I got to thinking about the stock dual stage intake and figuring out a way to keep fender side intake opening open all the time. In case you didn't know, the fender side intake opening is closed until around 3600rpm, which is when it opens up, thus resulting in the now infamous and much beloved "IS-F Roar". As you can see from the picture below, all I did was just pull off the vacuum hose from the actuator and plug off the other end with a vacuum cap. Now the "IS-F Roar" comes on around the 2300rpm, and to me atleast, there seems to be a bit more power down low...which makes since because now the engine can breathe a bit better down low with both intake opening being open all the time. The only downside would be if this throws off the air/fuel ratio's from stock. I don't think it will drastically, but I'm not sure. Anyway, try it out and let me know what you guys think. Oh yeah, no check engine light either! Have fun...Darshana S...

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Im guessing doing this mod + an aftermarket intake will noticeably increase power... when i say noticeably i mean relatively as opposed to intake itself, what do u guys think?
do we have to disconnect both wires/tubes or only one and if so which one? plug it back in and we're back to normal????
I tried it for a day and somehow the car idled at 500 rpms as opposed to its usual 8 or 900... dunno y that was the case, i plugged it back in and the car went back to normal... does this happen with all of u?
interesting... i'll try it when i get back from my trip to dubai which might be a bit long... im gonna go in our sts-v
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