I have the Hann intake setup right now, I've been wanting to change back to stock air box or get the zzp k&n. Which is better guys? If I go with zzp k&n will I have to re tune? Or if I get the stock will I have to retune back, heard that stock is best and the aftermarket intakes causes problems? Thoughts?

 

if ur tuned for Hahn yes u would have to retune for either of those. k&n is a good intake. most people go with that. if u have to retune, may as well go that direction.