I have a Greddy type S BOV in my 93 R1... but I noticed that the RX7 has 2 stock BOV... am I supposed to cap off the stock, because I'm running with the stock and the Greddy type S together...any suggestions... thanks!!

 

one is a blowoff and the other one is the charge relief valve. you need to leave the CR alone.

 

Leave the cr valve alone as rockshox said , leave the stock bov there also ,it is paid for and works, Two are better than one to keep the turbos from slowing as you shut the throttle to shift . My mechanic runs two stock ones that have heaver springs in them ( so they are not open at idle )and a seq HKS on the throttle body elbow .

 

If I were to by another bov for the pipeing how would i be able to block of the stock bov.

 

Use the nipple in the pipeing for the new one , buy one to fit that hose size ,or pull the y pipe out and have the size nipple put in that you need for the bov you get .

 

Thanks!!