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Discussion in 'General Tech and Maintenance' started by sloazcrx, Jul 17, 2003.

  1. sloazcrx

    sloazcrx Senior Member

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    Anyone have any suggestions on a header for a 90 ls motor, favorite brands and whatnot. Help me make a decision. Also, which is better, 4-2-1 or 4-1.
     
  2. D See 2

    D See 2 Senior Member

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    for a non vtec motor, def go with the 4-2-1 over the 4-1
     
  3. sportlinecrx

    sportlinecrx Banned

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    ive got a DC header and im real happy with it. just wish i had it wrapped in heat tape first. it doesnt overheat, but ive got a short ram intake and that header makes my engine bay get H-O-T in this 90-100 degree weather. i got the ceramic coated one too.
     
  4. rsaeini

    rsaeini Senior Member

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    look for a CTR header. it's a 4-2-1 design with a 2.5 inch collector. it'll work really great but you'll need to modify your cat to be able to bolt it up to it.

    i think the USDM ITR came with the 4-2-1 header with the 2.5" collector as well. can anyone confirm/correct this statement?
     
  5. E_SolSi

    E_SolSi Member of the 20 nut club Moderator VIP

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    USDM ITR had a 4-2-1 with a 2" collector
     
  6. liquid00meth

    liquid00meth Senior Member

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    4-2-1 provides more low end torque than the 4-1, but the 4-1 will shine up top.
     
  7. rsaeini

    rsaeini Senior Member

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    E, thanks for clearing that up.
     
  8. 2fastaccord

    2fastaccord Senior Member

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    DCSports 4-2-1 all the way.

    Peace*
     
  9. rsaeini

    rsaeini Senior Member

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    fuk DC. i would get another kind if i had the money to.
    i would give anything to get my CTR header back. i was a moron for getting rid of it. :bash:
     
  10. pissedoffsol

    pissedoffsol RETIRED

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    i concur

    i'd also run a 4-1

    4-2-1, although makes more midrange, is NOT the problem area for the ls- its the top end. any flow you can give it up top will be a great benefit in the long run.
     
  11. sportlinecrx

    sportlinecrx Banned

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    DC makes good headers. they sell alot of rice but their headers and exhausts are very good.
     
  12. odnet

    odnet Member

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    4-2-1: Drag Race, fo' shiz. Street reliability.
    4-1: Circuit, off the hezay! Makes low end really loud, hard to sneak around at night.
     
  13. rsaeini

    rsaeini Senior Member

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    what the fuk are you talking about. :blink: :blink:

    i've never heard of a 4-1 making your shit really loud.
    there isn't a specific header for drag racing or circuit/road racing. you can use either header for either application. it all comes down to how your car is tuned.
    i think all serious drag racers use a 4-1 style of some sort. i've seen a bunch of road racers use various 4-2-1 designs. so, my conclusion is... :newbie:
     
  14. E_SolSi

    E_SolSi Member of the 20 nut club Moderator VIP

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    4-1 does not = loud
    i have the JDM 4-1 w/ 2.5" collector and down low my car is VERY quiet
    shit im quieter than pretty much any other honda in my area that isnt stock
    :newbie:
     
  15. rsaeini

    rsaeini Senior Member

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    :werd:
     
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