Im looking to replace my stock FPR with an aftermarket one, but im wondering if the vac line is necessary for an aftermarket one. I looked around, but all the aftermarket ones have no line.

My other question is, since im running and HKS SSQ, will i need to recirculate it? Im not running tuning, but since it wont leak at idle like the stock one would it run rich after it blows off? Thanks for the help guys,

RoninRX7

 

Absolutely necessary, it's fundamental to how a FPR works and what it's there for. Being aftermarket doesn't change that.

Yeah they do, all of them.

 

do you guys have recirculated BOV's? if so, what do you have to do to make it run right? thanks

 

When I changed from stock to atmospheric BOV I didn't change a single thing and I had no problems at all.

 

well, im running the HKS SSQV, and no circulation... nvr noticed it leaking, but i do get bad gas mileage, but my cars got other problems and never thought that would be the culprit... so i hope this helps