Kybball#1

iTrader: (20)

Got bored so i installed the Fsport lower air box with the cut out and the Fsport filter it came with. I was running the HKS drop in. My ? is should i use the brand new Fsport filter or keep the HKS or does it really matter? Thanks

Nelly

iTrader: (11)

Don't think it matters but I'd use the F-sport just because it's new/Lexus. Or you COULD sell it lol.

Sffd103

iTrader: (16)

I don't think you'll notice a difference between the two. Maybe a slight sound difference.

Kybball#1

iTrader: (20)

I have the Joe Z tube, i notice that it is louder with the Fsport bottom, i guess i could put the hks back in and see which sound i like best. I dont really care either way, I just used the Fsport bc it was new and the hks had 20k on it.

600rr05

iTrader: (9)

doesn't matter but use whats newest and sell the other.

Denver

iTrader: (13)

use which ever is cleaner