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    #76
    Originally posted by theOracle View Post

    I’m running the Megan headers. The fitment is great. They felt quality. I have them flow coated inside and ceramic coated outside. In my opinion they’re hard to beat for the price.
    How is the power with the Bomiz high flow cats compared to catless?. I would assume that the smell of unburnt fuel will be reduced but not eliminated with that price. But from 1 to 10 how bad is the smell with those cats. Also I am not really familiar with flow coat. What’s the purpose behind it and the benefits ? And how much did it cost you
    Last edited by Mustafa564; 11-19-2025, 08:06 AM.

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      #77
      Originally posted by Mustafa564 View Post

      How is the power with the Bomiz high flow cats compared to catless?. I would assume that the smell of unburnt fuel will be reduced but not eliminated with that price. But from 1 to 10 how bad is the smell with those cats. Also I am not really familiar with flow coat. What’s the purpose behind it and the benefits ? And how much did it cost you
      I don’t notice any power differences. They also may get better at doing their job after some more miles and heat gets into them. 1 being no smell and 10 being you’re worried about passing out…., maybe a 3.5.
      With the windows rolled up yesterday it was a 1.
      From my understanding the flow coating is a slick ceramic product that helps exhaust flow and protects the inside of the header. By ceramic coating inside and out it definitely helps with the heat. I can’t remember the cost. It wasn’t crazy.

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        #78
        Originally posted by theOracle View Post

        I don’t notice any power differences. They also may get better at doing their job after some more miles and heat gets into them. 1 being no smell and 10 being you’re worried about passing out…., maybe a 3.5.
        With the windows rolled up yesterday it was a 1.
        From my understanding the flow coating is a slick ceramic product that helps exhaust flow and protects the inside of the header. By ceramic coating inside and out it definitely helps with the heat. I can’t remember the cost. It wasn’t crazy.
        but comparing the stock catted headers with your current setup I am assuming it’s day night difference. Correct?

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          #79
          Originally posted by Mustafa564 View Post

          but comparing the stock catted headers with your current setup I am assuming it’s day night difference. Correct?
          I’m not exactly sure which differences you’re implying. If it’s sound, then yes the headers are louder. If it’s performance, I’d also say yes it’s a big upgrade. Partially because you need to tune the car which makes a big difference.

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            #80
            Sound clips?

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              #81
              Originally posted by Mustafa564 View Post

              do you recommend Megan racing headers ? And when did you buy them.
              They were on my car when I bought it. I’ve had them off and they went back on great. I’ve been happy with them. For the price point they’re worth it

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                #82
                Bumping this. Any update on the custom built options with GESI cats?

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                  #83
                  Originally posted by x Spades x View Post
                  Bumping this. Any update on the custom built options with GESI cats?
                  Im getting really tired of waiting and thinking of picking up a used Euro one and modifying the pipes to fit the SS V1's.

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                    #84
                    Originally posted by 0-60motorsports View Post

                    Im getting really tired of waiting and thinking of picking up a used Euro one and modifying the pipes to fit the SS V1's.
                    Mparts has a Euro sec. 1 currently, but shipping may be an issue.
                    2004 Silbergrau Metallic 6MT
                    Karbonius/OEM Snorkel/Flap/HTE Tuned
                    Ssv1/Catted Sec. 1/SS 2.5" Sec. 2/SCZA

                    OE CSL Bootlid/AS SSK/TCK Vorshlag/4.10 Gears/ Sportline 8S Wheels/Cobra Nogaros
                    RACP Plates/Vincebar/CMP/Turner RTAB/Beisan

                    2006 M6 Black Saphire SMG
                    Instagram

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                      #85
                      Originally posted by Cubieman View Post

                      Mparts has a Euro sec. 1 currently, but shipping may be an issue.
                      Oh, Link? Thanks.

                      Comment


                        #86
                        Originally posted by 0-60motorsports View Post

                        Oh, Link? Thanks.
                        34 likes, 0 comments - mpartsworldwide on December 26, 2025: "BMW E46 M3 01-06 European Section 1 “Euro Cats” $800".
                        2004 Silbergrau Metallic 6MT
                        Karbonius/OEM Snorkel/Flap/HTE Tuned
                        Ssv1/Catted Sec. 1/SS 2.5" Sec. 2/SCZA

                        OE CSL Bootlid/AS SSK/TCK Vorshlag/4.10 Gears/ Sportline 8S Wheels/Cobra Nogaros
                        RACP Plates/Vincebar/CMP/Turner RTAB/Beisan

                        2006 M6 Black Saphire SMG
                        Instagram

                        Comment


                          #87
                          Done, lets see what the mileage is on that crust POS. I can arrange shipping to Bahrain through my freight forwarder depending on weight.

                          Comment


                            #88
                            Originally posted by 0-60motorsports View Post

                            Done, lets see what the mileage is on that crust POS. I can arrange shipping to Bahrain through my freight forwarder depending on weight.
                            Yea, after seeing that second photo I would ask them for a shot that shows the cat material, looks like the flanges are beat up as well. If the cats are good I would run it, just clean it up well and make sure the sealing surface is smooth.


                            Edit: I was seeing the remaining gasket as the sec. 1 itself, they should have taken those off, not to mention the RTV doesn’t help.
                            Last edited by Cubieman; 01-04-2026, 09:50 PM.
                            2004 Silbergrau Metallic 6MT
                            Karbonius/OEM Snorkel/Flap/HTE Tuned
                            Ssv1/Catted Sec. 1/SS 2.5" Sec. 2/SCZA

                            OE CSL Bootlid/AS SSK/TCK Vorshlag/4.10 Gears/ Sportline 8S Wheels/Cobra Nogaros
                            RACP Plates/Vincebar/CMP/Turner RTAB/Beisan

                            2006 M6 Black Saphire SMG
                            Instagram

                            Comment


                              #89
                              Originally posted by Cubieman View Post

                              Yea, after seeing that second photo I would ask them for a shot that shows the cat material, looks like the flanges are beat up as well. If the cats are good I would run it, just clean it up well and make sure the sealing surface is smooth.
                              yeah If I get ANY section 1 i'll be having it ceramic coated any way since they'll have to cut the flanges off on one side and flair the pipes to fit the V1s

                              Comment


                                #90
                                Originally posted by x Spades x View Post
                                Bumping this. Any update on the custom built options with GESI cats?

                                Check my prior post on this thread. I welded in a set of GESI cats to the 2.5" RE equal length section and mated to the Supersprint Stepped V1 Headers.

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