[95gsr13]

Please tell me the diffrence on these headers im trying to get headers i dont know which ones to get and please say why so i can know. What is the diffrence. its for a 2000 SI

 

[Mr Sleeper]

4-2-1 low end rpm torque
4-1 high end rpm torque

 

[HybridJDMHonda]

its for a 2000 SI

just in case you have questions about your car specifically there is a fourm for the si and the sir. check it out.

 

[Juggles]

The 4-2-1 will offer more low end and midrange power. I recommend this if you don't go to the track often. The 4-1 gives a bit more power at the high RPM range and I recommend this if you're at the track all the time. I think they balance out power wise. It just depends on how you like to drive.

 

[civperc]

go 4-2-1.
unless you are planning to go FI, then get 4-1

 

[Pootie Tang]

Go with 4-1. The B16A is quite a high revving machine and it likes the top end.. For the extra torque you would be gaining with a 4-2-1, I personally don't think its worth it to have the extra step for the exhaust gasses.

Consider this.. Some of the best gains to be found with a B16A is with the JDM ITR header wich is a 4-1 with the 2.5" collector. If you've got the dough I would definatley recommend that instead.

 

[ghost]

basically if all you're lookin' for is some extra boost off the line at a red light? go for 4-2-1 like most of the guys have said.

4-1 is if you want more power in the long run, say you race your car at the track a lot, this would be your better bet
ghost

 

[byebyeVW]

go for 4-2-1 for drag racing and 4-1 for the track