my f22b2 [5th gen non-vtec] has an oem 4-1 exhaust header (or so i'm told - i haven't taken off the heat shield yet).

when buying an aftermarket piece, is it necessary to stick with a 4-1 design or can i switch to a 4-2-1 design?

if i switched to a 4-2-1, would i lose or gain overall performace?

 

no you don't have to stick with the 4-1 and the generaly the 4-1 gives you better low end and the 4-2-1 gives you better high end so its up to your tast

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ChaosUnbound &raquo;</TD></TR><TR><TD CLASS="quote">no you don't have to stick with the 4-1 and the generaly the 4-1 gives you better low end and the 4-2-1 gives you better high end so its up to your tast</TD></TR></TABLE>

you've got it backwards man. look at how race headers are constructed, and they are made for power only in the top end.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by i3igpete &raquo;</TD></TR><TR><TD CLASS="quote">

you've got it backwards man. look at how race headers are constructed, and they are made for power only in the top end.</TD></TR></TABLE>

Correct

 

my bad im mixed up

 

yup...u'll be fine with a 4-2-1.

 

yeh switch and a 4-2-1 will slightly broden your powerband

 

yep, just go to a junk yard and pick up a EX manifold, along with the a pipe.. and 4-2-1 is all yours.... and 5th gen headers ARE interchangeable... just need to extend the o2...