Its the same as a regular 1g BOV but it has been slightly modded to hold higher boost levels. you will run into the same problems trying to vent it to atmosphere as you would any other bov. Also it does not use the same flange as the stock 2g. I am currently using one now, and its well worth $30
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"So...is there any tread left on the tire..or at this point would it be like throwing a hotdog down a hallway"
-Stewie (Family Guy)