4-2-1 vs. 4-1

[gen2tegls]

whats the pros and cons of 4-2-1 headers an 4-1 headers

[whtteg]

4-2-1 headers are better for low to mid rpm power and the 4-1 is better for mid to high rpm power. The 4-1 also hangs lower than the 4-2-1 so if you have a lowered car keep that in mind when you are driving, it is not that low but still it could be hit on something.

[integratool666]

which one - in your opinion - do you think is better overall? and more beneficial?

[gen2tegls]

Originally Posted by whtteg

4-2-1 headers are better for low to mid rpm power and the 4-1 is better for mid to high rpm power. The 4-1 also hangs lower than the 4-2-1 so if you have a lowered car keep that in mind when you are driving, it is not that low but still it could be hit on something.

how much power are we talking about from the 4-1 in high rpms compared to the 4-2-1

[BullShifter]

Originally Posted by integratool666

which one - in your opinion - do you think is better overall? and more beneficial?

4-2-1 - street & street/race
4-1 - race only

[Spectre927]

Originally Posted by jackasssi

4-2-1 - street & street/race
4-1 - race only

Really? I just thought it set the exhaust flow to either be better for higher RPM(4-1) or lower/mid RPM(4-2-1). But I guess thats what I get for thinking.

[BullShifter]

Originally Posted by Spectre927

Really? I just thought it set the exhaust flow to either be better for higher RPM(4-1) or lower/mid RPM(4-2-1). But I guess thats what I get for thinking.

No your right, most people don't drive around @ high RPM on the street so a 4-2-1 is a better choice since the engine is usually @ low/mid RPM's.

[gen2tegls]

what about thos 2 pice headers r they just eaier to install or is there any thing positive or negative

[BullShifter]

2 piece - easy to install // more possible places to leak from.
1 pieces - harder to install // less possible places to leak from.

[Spectre927]

Originally Posted by gen2tegls

what about thos 2 pice headers r they just eaier to install or is there any thing positive or negative

I cant remember, but either theyre heavier or lighter, but I think theyre heavier since there is more metal on them, and yes theyd be easier to insstall.