no mine does not. i'm in a 4eat anyway, so the whole argument of loss of power while shifting doesn't apply... it only vents when i take my foot off the accelerator, or when i brake.
As for what it does in a 5mt... in my opinion it's not a big deal... if you're going to be running crazy boost, on upgraded injectors and whatnot, you should probably be running some sort of EMS that can cope with the recirc, or buy one at that time.
i think it's either turbosmart or turboxs that has a recirc unit that fits our cars, if that's your goal.
base on the shape of the perrin, it looks designed to do the same or at least 50/50 atmos/recirc (the bottom looks modular). however again, it looks like it attaches in the place you want it the least.
PS, as far as i know the HKS has a recirc module. i swear i've seen it before, but looking at HKS site, i can't find it.
nevermind, here it is from their ssqv pdf.
