Brocks headers 4-1 or 4-2-2 comparison for price n bang for the buck on a gen 2

[RedBull]

It is beefier ,
now I have to
get the new
Alien Head
dog gone it .

#AlienHead ~ #BrocksVersusYoshimura ~ #DualVersusSingle ~ #THEoRg *

Full Akrapovic Or Brocks Alien 1 ? | Gen 2 Busa Information

Which would make more power & torque with just a dyno tune? An alien head 1 full kit or an akra full 4-1 kit? Or is there a slight difference between the two ?

www.hayabusa.org

[FILT166]

Well I bought a used AH1, it’s Dyno tuned. I pull Busas on the big end with an AH2 and Dyno tuned.
I can’t say buying an AH2 is better vs an AH1 or it’s just in the tune.
Both tuners are here in TX and each tuner know their stuff.