Which Headers?

[Kouki 180SX]

What is the difference between 4-1 Headers and 4-2-1 Headers?

[titanoh]

4 to 1 headers goes from 4 pipes to 1 pipe. 4 to 2 to 1 headers go from 4 pipes to 2 pipes to 1 pipe (which is susposed to help flow the gasses out from the engine).

[nammy585]

What is the difference between 4-1 Headers and 4-2-1 Headers?

The 4-2-1 is less free flowing and basically better for torque and lower end power.The 4-1 is much more free flowing and better for higher end power...depends what your trying to do with your motor, i say screw header and save for future turbo parts, since your gonna have to replace the header with a turbo manifold if your planning on going turbo, your car your choice.

[Drakelee]

i'm still trying to decide between the two, i am trying to get as much out of my car n/a cause i already have a fat turbo on my rx7

[Kouki 180SX]

oh ok thanks. is there any difference in sound? and which one would you recommend?

[Kouki 180SX]

well which one is better if you wanna go like 0-80?

[nammy585]

well which one is better if you wanna go like 0-80?

if ur thinking about sound, it really matter more about the supporting mods i.e. intake,exhaust, and what ever else you have under the hood, as for 0-80,really depends if you rather have more power at lower rpm(4-2-1) or higher(4-1)

[nocashmotorsport]

that is incorrect. 4-2-1 is ment for higher rpm gains. 4-1 in more like the stock one wich is great for lower rpm's. i have a 4-2-1 in my car and i lost a moticeable amount of power in the bottom end but it feel much more faster and agressive in the high rpm band. just thought that i would feed you the right information before you buy the wrong header.

[Kouki 180SX]

what about brands of headers? is obx or pacesetter good?

[nocashmotorsport]

they are both good i am pretty sure that they are both 4-2-1 so they are good for high end power.

[dgms240]

best header for 240sx in my opinion is HOTSHOT! harder to find but worth it. noticable low-end power.

[nocashmotorsport]

best header for 240sx in my opinion is HOTSHOT! harder to find but worth it. noticable low-end power.

this is the same basic design of all the 4-2-1 header found on ebay. the fact is tha it is for better top end not bottom end . i personally own a hotshot header and i lost low end but gained some top end. people have this abit confused but trust me i know.