I forget what was mentioned on the site before. Does the 3.5" intake tube on the AF1 require a tuner? I'm eventually going to get a tuner but not right now. Is the 3.5 standard size or over size. i found a 3.5 for the same price as whats on troyer with free shipping. Thanks!

 

The 3" is the regular one, and the 3.5" is the larger one that needs a tune when you put it on.