Hmmm I just installed the UPR 70mm tb/plenum... The tb is ford racing but the 70mm plenum is the style in the pictures. It's hard to tell if I picked up anything because I had just bought the car and it needed new plugs and it had the nastiest air filter I had ever seen so I did a tune-up at the time.

 

nope, just the hardballer intake and u use ur tb/plenum and cai. im not entirely sure on the 4v though.

i think im just going to skip this product lol

 

that member, i think, slipknot, just did a 4v swap...you could ask him when youre ready, he would be able to tell ya

 

yeah the more i think about it, ill probably stick with 2v. but 4v would be nice...