i know this has been covered before,but im getting a new header,and i want to know if theres much power difference gains between a 4-1 and a 4-2-1 header setup.ive read ppl saying the 421 is low to mid power,and the 41 is all top end,then ive seen the 421 was mid to top end.im looking for mostly all top end for my build.if anyone has some good answers please let me know,thanks.

 

get a 4-1 for the most high end... the more you pay the more HP you will make and the more TQ you will keep.

Cheapest thing I would get is a JDM ITR or the DC replica... comptech is nice also.

 

but those wouldnt match up to my gsr exhaust would they? or the cat for that matter

 

stock cat is restrictive, better to get a dynatech or something like that. You can however keep it with alot of headers, they just dont make as much top end power.

Comptech, dc and others that have a standard collector will fit with no mods.

 

well i got a hi-flow cat coming in from mufflertech so i just need the header now,im saying though,isnt the gsr header shorter than an itr?

 

get this header:

http://cgi.ebay.com/ebaymotors...QrdZ1

and this cat:

http://www.rpmoutlet.com/powercat.htm

with these flanges:

http://www.kteller.com/store/p.../1065

and this piping:

http://www.kteller.com/store/p...d/681

and a muffler of your choice, maybe one of these:

http://www.eautoworks.com/html...r.htm

Will be loud, but wide open. will gain you alot of HP over stock and possibly a little bit of torque.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jsnm &raquo;</TD></TR><TR><TD CLASS="quote">well i got a hi-flow cat coming in from mufflertech so i just need the header now,im saying though,isnt the gsr header shorter than an itr?</TD></TR></TABLE>

from what i know yes the stock GSR header is shorter, and if you want top end flow the 2.5" collector on the JDM type r header or the DC clone will do you good assuming you run 2.5" all the way thruout

 

what year gsr, check the marketplace. a sponsor is selling a megan header with 2.5 collector.

 

i got a comptech one 4-2-1 if u are intrested let me know

 

94 gsr,
gssr,wat kind of price? also got any pics?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jsnm &raquo;</TD></TR><TR><TD CLASS="quote">94 gsr,
gssr,wat kind of price? also got any pics?</TD></TR></TABLE>


dont buy megan, its garbage

 

i really suggest you get a megan racing 4-1 from devltuning.com
it is a copy of the jdm itr 4-1, but it will bolt up to your gsr (with a cat with a larger flange). no fussing with lengths.

 

you have a 94, they are comptech 4-2-1 SS 1 piece but it won't fit your car, but i have skunk2 stage 1 cams, and a vafc 2 for sale as well if u are intrested, and a comptech ice box and air intake, but that will work with a gsr with a skunk2 intake mainfold or type R or ls

 

how does that comptech intake sound?is it really quiet or does it sound like a cold air or short ram? also waht ru looking to get for the vafc and which one is it the blue or blakc one?

 

its sounds like a cold air, but a little quiter, and the vafc is avafc 2 the newer one and its blk, i am asking 175 shipped for that and the comptech ice box and air intake 200 shipped everything comes with orginal boxes and carb stickers and instuctions, the comptech has warrenty for anther 6 months or so through manufacturer

 

i just messaged you gssr