there are just too many posts on BHAF. I just got the urge to go with one on my 04, throw out part numbers for me guys. I have the MPC pipe from Geno's, I want to keep that installed. The only concern I have is the (forgive me, I am drawing a blank) little sensor that attaches to the stock airbox. (see my photos) Is this needed? I dont remember seeing one hooked up to anyones BHAF in any pics I have seen. TIA

 

yes needs to stay hooked up. ACT (Air Charge Temp) some just leave it lay out in the air stream