Blowoff Valve versus Bypass Valve

[5111]

What is the difference between these two valves? Is there a performance gain/loss with either?

I have a Vortech and am wondering if I would gain anything other than the cool blowoff sound in switching. What are my options?

 

[orangestang2000]

the valves are basically the same thing but you have to use either as a bypass valve becuase of the maf, if you don't bypass the air( recirculate the air) your car will run like **** if at all, it has to due with the computer thinking the air is there but if you use the blow off ( atmosphere discharge) it confuses the computer.
sorry for the choppy explanation i am in a taking a lab quiz right now.

 

[lx2539]

the valves are basically the same thing but you have to use either as a bypass valve becuase of the maf, if you don't bypass the air( recirculate the air) your car will run like **** if at all, it has to due with the computer thinking the air is there but if you use the blow off ( atmosphere discharge) it confuses the computer.
sorry for the choppy explanation i am in a taking a lab quiz right now.

yup...and then you'll run rich! back fire etc..