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what diameter exhaust piping for stock prelude?

Discussion in 'HYBRID -> BA-BB /CA-CD' started by gbert, Jan 21, 2004.

  1. gbert

    gbert Junior Member

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    I was wondering if anyone knows what the stock diameter exhaust piping is for a 95 prelude Si 2.3L.

    Thanks
     
  2. smooth_criminal

    smooth_criminal Senior Member

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    2.25"
     
  3. dohcvtec_accord

    dohcvtec_accord WRX Sellout

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    That seems high. My stock piping on my Accord was 1.75". I'd think a Prelude would be there, or MAYBE a 2", tops.
     
  4. Smonkeyboy

    Smonkeyboy Senior Member

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    yeah, 1.5-1.75

    the teg was 1" stock, witha 1.8L , so i think 1.5-1.75 would be about right
     
  5. Prelude92

    Prelude92 Member

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    2 1/4 is the recomended right so is that for the my prelude i dont have many mods though and i got the 2 1/4 with and apex muffler is that good
     
  6. tab

    tab Super Moderator

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    2 1/4" would be fine. Just keep restrictions to a minimum. I read one of those lengthy articles posted on here a couple months ago. What it comes down to is, bigger isn't always better, smaller is worse, consistency is best. You want good flow by volume, but also to keep exhaust velocity up. I'm gonna go 2 1/2", and that's on the large side. You want smooth bends and no hang ups. Whatever size pipe you run, take that exact size right out the tailpipe.

    This means: Don't knock the crap out of your cat, it will not help. If you need more flow, get a bigger converter with the right inlet and outlet. The turbulence in the gutted cat drops exhaust speed. Run 2 1/4" from beginning to your muffler. The exhaust velocity will help "pull" spent exhaust gas from your cylinder, making for a better intake charge. Bigger pipe will kill the velocity.

    Oh yeah, I like stainless too, my exhaust rusts quickly from short trips to work.
     
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