So I just installed the injen intake kit on my '03 GSR that comes with the intercooler hard piping and bought a Greddy type RS BOV but haven't installed yet, I am wondering if I need to have my car tuned after I put the BOV on or if it will be fine? Thanks for the help I am new to the AWD Turbo world.

 

Do you happen to know if that particular Greddy is a recirculated BOV? Because if it's not, I believe you'll have to switch over to a speed density system. Someone with more knowledge of this will help you out for sure if this is the case.
If it is recirculated, then no you don't "need" a tune.. but it would be best if you get one when the opportunity arises.

 

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