Can someone help?? Question about the BLOW OFF VALVE
 

I have a 91 GSX with gm maf sensor. Piping is allcustom. I was wondering, do I install theBlow off valvebefore or after the maf sensor???? Does it matter??Or can itbe either way??? Anything infowill help.

RE: Can someone help?? Question about the BLOW OFF VALVE
 

The BOV goes before the MAF, bud.

RE: Can someone help?? Question about the BLOW OFF VALVE
 

Actually, you can put it like I stated above. That will allow you to vent the BOV to atmostphere.
You can put the MAF in front of the BOV like the stock setup, but you will still have to recirc the BOV, just like the stock setup too.

RE: Can someone help?? Question about the BLOW OFF VALVE
 

can you post pictures of ur set-up? u said the pipes all custom made?