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2.5 inch or 3 inch exhaust

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    #1

    2.5 inch or 3 inch exhaust

    hey guys just wondering, with my h22a turbo what size exhaust do you think i shoud go? 2.5 or 3 inch? i will be making around 300hp atws and dont want to loose power by going to big or small. reason im asking is that i am getting a high flow cat and need to know a size. cheers
    Tags: None
    #2
    http://www.cb7tuner.com/vbb/showthre...5+inch+exhaust

    seems that 3" is best, but also seems some people have also used 2.5". I dont think you would be losing power going with 3" either.

    1992 Honda Accord Coupe LX

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      #3
      3" would definitely be the way to go.
      Click Image for CB7Tuner.com Beanies, Decals, & Keychains!

      Comment

        #4
        3"...if you wanna go big power later down the roads it will work and you wont loose any right now

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          #5
          yeh sorta was leaning to 3 inch.

          Comment

            #6
            2.5 is great for NA, but for a boosted car I would go with 3.
            1990 accord Honda-Challenge, H22 powered
            newer race video,older race videos
            1991 accord parked, parts and back up shell
            1993 accord acquired 6-11-16

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              #7
              3" all the way! You never "lose" power by going to a bigger exhaust when turbo'd! Remember, the best exhaust for a turbo car is no exhaust!
              -Keylan-

              My hopes and dreams of a CB7 have been dashed!

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                #8
                just go 4 inch.
                I <3 G60.

                0.5mm Oversized Stainless valves and bronze guides available. Pm me please.

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                  #9
                  Does it matter which one is louder?


                  corolla/accord

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                    #10
                    My friend has 4" on his turbo miata and yes it sounds loud as hell, it kind of rattles his house in a way, lol but sounds absolutely sick.

                    1992 Honda Accord Coupe LX

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                      #11
                      That is kind of the downfall. The bigger you go, the louder it is. If run it straight with no cats, and no resonators like I do that is! haha
                      -Keylan-

                      My hopes and dreams of a CB7 have been dashed!

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                        #12
                        2.75" ? Yea, 3" is the way to go with a turbo. If I was to ever go turbo, I'd throw the straight back exhaust back on. 2.5" is recommended for an h22, itself. But you...boosted h22, 3".
                        98' Mustang 3V Swap
                        11' VW CC R36

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                          #13
                          YEah, I'd agree most of the board. Three inch, hands down for boost.
                          94' CD5 EX - Best of Both Worlds

                          Support an ICT Meet

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                            #14
                            I'm guessing most of them used 3" anyway.

                            yo tsx, here i come

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                              #15
                              Originally posted by karl View Post
                              2.5 Is Great For Na, But For A Boosted Car I Would Go With 3.
                              +1

                              no
                              Accord turbo kit under $2k here
                              $30 HID kits here Thread
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