kjet intake details

Ive done alot of searching, couldnt find anything solid. Just my opinion, but, I think on a NA engine you cant beat it. On a turbo setup, I think the position of the throttle body isnt the best setup. The air comes threw the thottle body and has to make a sharp turn. But who knows maybe its work great. Ive decided to get a KLracing intake.

That is a great choice for an intake improvement.

One Swede got 450 hp out from stock B230FB with V-cam. Headers and HX35. The trick was re85.
Maybe it is not the most durable engine but gives a clear indication what can be achieved with stock components.

Bet he was using S90 throttle bodies

If I remember, I looked into a larger throttle body for that intake and found a B30 fuelie tb was almost a match to the mounting holes in the B21f intake and larger in diameter.