Resonator suggestions? S50 w/UUC muffler is a bit loud

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  • butters
    E30 Fanatic
    • Nov 2010
    • 1202

    #1

    Resonator suggestions? S50 w/UUC muffler is a bit loud

    I'm running eBay headers with no cats and straight pipes to a UUC system U rear section. Love it but it's not practical and I need to eliminate the drone. Any good slim straight-through resonators I should check out?
  • dsobering47
    Mod Crazy
    • Oct 2007
    • 697

    #2
    I know it doesnt help, but do you have custom pipes from the headers to the UUC section? i'm in the process of figuring my exhaust out...

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    • BMW_TUNER
      E30 Fanatic
      • Jul 2006
      • 1377

      #3
      I run the same setup s50 with uuc system u but I have a dual inlet dual outlet magnaflow cat ( that X's the flow)it helps some but I would be looking for resonators if I were not planning on going FI. Look at small resonators that can be put in line and staggered for space considerations they help a lot.
      1989 332IS -S-Fiddy Four-Some weight removed.
      5 lug E36 M3 Brakes Coilovers and LTW's and No ABS.

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      • e30polak
        R3V OG
        • Nov 2006
        • 6136

        #4
        I'm a huge fan of Vibrant's products. 2 of these should do the trick:

        Every Vibrant Resonator is TIG welded from 304 Stainless Steel for superior durability and polished for show quality looks. Vibrant standard design resonators feature a "True Straight Through" perforated core surrounded by premium multi-layer sound absorption materials to dampen noise levels without restricting exhaust flow.


        Or you could just get a cheap dual in, dual out muffler from Summit:

        Free Shipping - Thrush Welded Mufflers with qualifying orders of $109. Shop Mufflers at Summit Racing.
        Last edited by e30polak; 12-02-2011, 05:54 PM.
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        • giantkeeper
          E30 Fanatic
          • Aug 2009
          • 1416

          #5
          Originally posted by e30polak
          i'm a huge fan of vibrant's products. 2 of these should do the trick:

          http://www.verociousmotorsports.com/...sonator-12-oal
          qft!
          Originally posted by blunttech
          Always Always go for the reach around if there is an option

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          • Nairb
            E30 Fanatic
            • Apr 2010
            • 1207

            #6
            Magnaflow.. dual resonators. Good for around town, but unleashes under WOT.
            My 1991 318is Progression Thread

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            • e30rapidic
              R3VLimited
              • Oct 2003
              • 2167

              #7
              Originally posted by e30polak
              I'm a huge fan of Vibrant's products. 2 of these should do the trick:
              Every Vibrant Resonator is TIG welded from 304 Stainless Steel for superior durability and polished for show quality looks. Vibrant standard design resonators feature a "True Straight Through" perforated core surrounded by premium multi-layer sound absorption materials to dampen noise levels without restricting exhaust flow.
              I have this and a Vibrant muffler in the 3 inch variety. I am looking to go quieter as well as its too loud for me. Sounds great, just too loud. I may just add a second resonator.
              '87 325ic, powered by S50.

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              • 325e10
                Advanced Member
                • Sep 2010
                • 161

                #8
                I just took mine too the exhaust shop and they welded in two inline resonators (magnaflow maybe?) works great and it doesn't drone.

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                • rlddlr53
                  E30 Fanatic
                  • Oct 2009
                  • 1450

                  #9
                  Originally posted by butters
                  I'm running eBay headers with no cats and straight pipes to a UUC system U rear section. Love it but it's not practical and I need to eliminate the drone. Any good slim straight-through resonators I should check out?

                  I have some resonators from an e36 m3 I could sell you cheap. Like $10 plus shipping

                  Comment

                  • MR 325
                    Moderator
                    • Oct 2003
                    • 37824

                    #10
                    Another cheap option is a Cherry Bomb. I've got one in the center of my S50 exhaust.
                    BimmerHeads
                    Classic BMW Specialists
                    Santa Clarita, CA

                    www.BimmerHeads.com

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                    • mdlimy
                      Wrencher
                      • Aug 2011
                      • 289

                      #11
                      i have the same setup on my m20, uuc system u back section mated to headers and straight pipes....god damn loud, but sounds so good, just going to deal with it till i turbo it lol.

                      Comment

                      • bmw2002tiiagave
                        E30 Addict
                        • May 2009
                        • 501

                        #12
                        def try 2 bottle resonators from Vibrant. Will cut the drone big time plus less backfire. really smooths out the sound.
                        1972 2002Tii

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                        • e30polak
                          R3V OG
                          • Nov 2006
                          • 6136

                          #13
                          Originally posted by e30rapidic
                          I have this and a Vibrant muffler in the 3 inch variety. I am looking to go quieter as well as its too loud for me. Sounds great, just too loud. I may just add a second resonator.
                          Sell the normal resonator and go with their new "Ultra Quiet" unit, it's supposed to be MUCH more effective at "muffling" the exhaust then a conventional resonator.

                          Vibrants are loud mufflers to begin with, I ran 2 mufflers and mine was still loud, but the sound you achieve is bar-none! :mrgreen:
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                          Scarlet V2 - #Project333Ti by @castromotorsport, @kingsautobodyshop, @bimmerheads, @hardmotorsport, @excel_motorsports & @mateomotorsports - http://www.r3vlimited.com/board/showthread.php?t=371356

                          Your signature picture has been removed since it contained the Photobucket "upgrade your account" image.

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