4-2-2 or 4-2-1 exhaust ?

[davidl9953]

i have an 05 busa with dual yoshi pipes, would the 4-2-1 yoshi system be better performance wise ? or just keep what i have ?

[BusaWhipped]

Depends on what other mods you have.

[davidl9953]

only have air filter and the dual yoshi pipes, i've heard the single is better but want to know the truth

[FastBusa]

Single is lighter. Titanium is the lightest of all.

[Professor]

i have an 05 busa with dual yoshi pipes, would the 4-2-1 yoshi system be better performance wise ? or just keep what i have ?

David,

It sounds like you have a factory header with Yosh slip-ons. I would say it is more of a 4-2-1-2 as it is X'd between the two "2" sections.
Yes, a Yosh 4-2-1 would be a better pipe.

Here is a pretty good read on the stock pipe and its drawbacks.

https://www.hayabusa.org/forum/engine-performance-mods/25875-exhaust-myths-vs-reality.html

[dadofthree]

4-2-1, my pipe is light and adds performance. Get a good pipe.

[Strife]

To get full benefit of new exhaust you will need a "Custom" tune.

[BusaWhipped]

Stock motor will do better with a 4-2-1 full system.

[hoaboking]

Im trying to loose the air canister on the right side of the bike'' I have n 08 busa. Also I'm gonna cut' or chemical out the cat converter from the origenal set up.... I have a Yossh duel carbon fiber slip on's that i dont want to wast so Im thinking MIG em on and the rest of the OEM pipe can be fixded and put back in place.... Any comments..

[busa9218]

anyone here using the bolt-ons GPR exhausts?

[plutonium853]

my modified Suzuki Hayabusa

[Bumblebee]

my modified Suzuki Hayabusa

View attachment 1636323

Nice bike, however you are posting in a thread from 2008-FYI

[Rojo]

Thread '4-2 exhaust headers'

Mar 9, 2023

anyone tried the blackwidow exhaust headers on the gen 3? appreciate any feedback. i am looking to use the dual Yoshi slip on with that setup.

• Hayabusa_1116
• Replies: 34
• Forum: Gen 3 Busa Information

• 

Personally enjoy the benefits of a much lighter single for the weight savings alone , versus two HUGE trash cans outback *