i have both the Holley and the TPiS airfoil, the holley looks like it would flow better than the tpis to me.......but thirdgenresource says tpis is the first and still best out there......anyone have any input on what u think is better? thanks guys, just wonderin what one i should put on my car

 

doest really matter, put one on, and sell the other one. They are all about the same.

 

I agree with Bigals, use either one.

 

Yeah, buy the cheapest one (read: not TPIS). I think SLP has one for around $30.

 

i got my SLP one when it was on sale for 25 something. i just drove down there and picked it up. Its a nice part. SLP and TPIS are overpriced on most of there stuff. Just for that little part, it shouldnt be more then 35.

 

If I remember correctly, the TPIS bolts in, where the Holley hangs there with a clip? Use the one that bolts in. If they both bolt in, then use whatever.

 

i like my tpis, i bought it from jegs a few years ago.

 

well find a pic of the holley one compared to the tpis one, yeah the tpis bolts in which is good, the holley ran me 70 bucks

 

personally try both on and kepp the one that seems to work better and sell the other one, thats what i woudl do

 

As you can see, the TPIS bolts in, whereas the Holley clips in. I would use the TPIS for the above reason. You dont want the Holley getting knocked out of place.

 

I can't imagine either one making any sort of difference at all, let alone one being better than the other. Has anybody really seen any measurable gains from these things?

I know there are some pretty outrageous advertisements about them.

 

i bought the holley air foil... just installed it today. yeah, i doubt they'd be a difference of performance between the two. I like the fact that if i did change fuel injection system to my car i'd be able to sell the holley w/ out a gasket.