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    #31
    I cant speak for all of them but from the ones I've seen, yes.

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      #32
      Originally posted by m3panda View Post

      Ah thanks for clarifying- I see the crossover in the pic

      what i don't understand is why bomiz is able to get a high pitched sound from stock us headers then

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        #33
        Originally posted by discoelk View Post
        I cant speak for all of them but from the ones I've seen, yes.
        This is the CPI stepped (which I'm running), which looks be longer bank to the outside like the euro headers:

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          #34
          Just preordered the street with hfc. I understand the cats might not be the highest quality, but anything would be better than the catless that i'm running now. Especially at this price point. (I generally don't mind the smell, so if something can help it a bit more, that works for me)

          I'll report back when delivered with my thoughts.

          Also, i'm curious, Tbonem3 why did you say these were trash? any reasoning behind that?
          Last edited by L0okitzRaj; 07-15-2025, 08:18 AM.

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            #35
            Everything's trash now. Looks stupid, sounds stupid. People are this deperate for something new? Pro tip: there's nothing new. Cheap cats will fail and will stink.
            DD: /// 2011.5 Jerez/bamboo E90 M3 · DCT · Slicktop · Instagram
            /// 2004 Silvergrey M3 · Coupe · 6spd · Slicktop · zero options
            More info: https://nam3forum.com/forums/forum/m...os-supersprint

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              #36
              Originally posted by Tbonem3 View Post
              Everything's trash now. Looks stupid, sounds stupid. People are this deperate for something new? Pro tip: there's nothing new. Cheap cats will fail and will stink.
              This!

              I'm working with my fabricator to make these for people running supersprint stepped headers. We plan on using Gsport by Gesi cats in the section 1
              2006 Alpine White/Black ZCP 6-Speed

              Join the E46 M3 Owners FB Group HERE

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                #37
                Originally posted by whoissuprme View Post

                This!

                I'm working with my fabricator to make these for people running supersprint stepped headers. We plan on using Gsport by Gesi cats in the section 1
                Awesome. If priced reasonably im in!

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                  #38
                  I can build a run of these if folks are seriously interested. They don't sound wildly different than a euro car but it is higher pitched. I would only do 2.25in tubing though. It did not look possible to make a 2.5in version without doing pie cuts which is kinda shoddy on a car like this IMO. Welds would be nicer than these and I could probably get the bends done locally, I will just need to scan and model everything. Blah blah blah. No idea there was this much interest.
                  Attached Files

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                    #39
                    Originally posted by L0okitzRaj View Post
                    . I understand the cats might not be the highest quality, but anything would be better than the catless that i'm running now.

                    I'll report back when delivered with my thoughts.

                    Also, i'm curious, Tbonem3 why did you say these were trash? any reasoning behind that?
                    You'd be surprised, the no name 200cell cats are packed so poorly and have so little precious metals that they're pretty much straight pipes (stinky/poisonous) unless you get em super hot

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                      #40
                      Originally posted by discoelk View Post
                      I can build a run of these if folks are seriously interested. They don't sound wildly different than a euro car but it is higher pitched. I would only do 2.25in tubing though. It did not look possible to make a 2.5in version without doing pie cuts which is kinda shoddy on a car like this IMO. Welds would be nicer than these and I could probably get the bends done locally, I will just need to scan and model everything. Blah blah blah. No idea there was this much interest.
                      I’d buy a non resonated one. What would you charge?

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                        #41
                        I can't compete with China pricing. PM me if you're serious. It seems like you want something for US manifolds though which is different than what I posted.

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