if i buy the hahn charge pipes then buy a bov can i jus install the bov on the pipes or do i have to do something else or wat??

 

You have to make sure they weld you a flange for the type of bov you want or you will have to find a shop somewhere that will do it afterwords

 

There are decisions to make. Such as do you want to run the BOV to atmposphere or recirculate it back to intake. Basically the BOV is evacuating MAF metered air so in my mind without moving the sensor or tuning, your best off recircing. Than you have to decide if you want to run your BOV along with the stock bypass valve or block off the stock bypass valve. Also to note is what the material of the flange is. Most charge pipes are aluminum so you may have to fork out some cash to get an aluminum flange as mine came with a steel one.
So if RECIRCING your BOV, u will need custom fabbed intake and charge pipes. Another factor is the flange size for the BOV. I'm using Synapse Engineerings BOV and they use 1.25" flange therefore your intake needs to have a 1.25" adaptor. Other BOVs i believe are generally 1.0". Lastly if RECIRCING, you need to get some tubing to go from BOV to intake. I used industrial water hose (something like that), its just thick black vinyl. Ive been using it for 6 months with no problems.

Anymore specific questions just post up or PM me