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Discussion Starter · #7 ·
I am 100 percent catless and it has small pops and crackles when shifting which is absolutely normal. I was wondering about the blow off valve, I have a recirculating Hks which means the air is not leaving the system so I shouldn’t need a speed density kit right or am I still wrong?
 

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Discussion Starter · #9 ·
Sorry for the confusion, I’m new to the community but I bought the Hks system and it gives you the choice. I could leave it as a BOV or recirculate it. So I shouldn’t be worried?
 
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