just need to know if the smaller stock velocity stacks are on the inside or outside or will it matter if they are swapped?

 

what do you mean by inside or outside?

did you find aftermarket velocity stacks for the f4i?

 

the are a total of four tubes. 2 are shorter than the other 2. do the shorter ones go in the middle?

 

They'll only fit in one way...but I believe the taller maybe outside...had mine out a few weeks ago...wondered the same thing...but found the would only seat completely one way

 

+10000000000000000, there's only 1 way to put them....

 

You can mount them the wrong way if you flip them around, I know, I did it once the screw holes will match.

But, yes the taller ones are on the outside

 

mmmmmm, but what happen if you put them the wrong way???

 

A rough launch and a flat spot on the upper revs, in my case at 9-10k.
Ever had a dirty as **** air filter? Kinda like that...

And a "WTF is happenning here" face

 

thank you!

 

Sorry to bring up an old *** thread, but I was reading on other forums for the rr that after market velocity stacks create more power, factory pro stacks are shorter creating more top end power but sacrifices low end and done mid range, and I believe erion has taller stacks that sacrifices top end and possibly some high mid range but you gain good low end power...

Now this is all fine and dandy for the rr people, but for the life of me I can't find a damn thing for our F4i anywhere online... Now I was thinking, what if I got two extra sets of OEM stacks and cut them perfectly down the middle and use a washer for the middle screw spot to ensure its all tightened down, if I were to set up all four long tubes and put it all back together, would I theoretically notice more low end power as well? Or no because the rr is mapped differently?

I just did the kleen air mod tonight and the ram air resonator removal (which I know isn't a power gain but it sounds cooler lol), but i'm looking for more stuff to do to add power at the low end before I get my pc3 so I can get it mapped accordingly... There are no header that I can find, I've already done kn filter, -1, +1 525 with an rk chain, o2 delete with optimizer thing and ai have a Shorty rs3 Yoshi... Idk what else there is to do without tearing apart the motor or nitrous (which I'm not doing)