Huh thats funny, i have a tb and plenum with both spacers and one it increased my mpg quite a bit and two throttle response picked up a lot. I'd say if you already have it put it on there.
Agreed.If the spacer is used on a ported stock upper,it's "almost" the cheap way of doing what the aftermarket upper is doing,creating more plenum volume,but you will see very little gains.If it's free,and you are running the stock upper plenum,put it on,i did the same,got one for free,and trew it on.Who cares....it's free.But if you have an aftermarket upper,i wouldn't bother,no point in it at all .Most (not all) aftermarket plenums are raised around an inch also, so that kind of works as a spacer in itself.
I got one of these bad Larry's for free today. Im wondering if its worth my trouble to toss this thing on. I have a PP 75MM plenum, t/b, CAI whatever. My car is N/A..... worth it?
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