This might help you out: http://www.m5board.com/vbulletin/ex...ion-1-supersprint-x-pipe-bmc-air-filters.html
Section 3 is your mufflers. Section 2 is your renoators and section 1 is your secondary cats.
Do you by chance know that if i replace the secondary cats, will it throw off codes and turn on check lights?
I meant to ask the secondary cats question to you. Do you know if replacing them will throw off codes/etc?
The secondary cats are not monitored (e.g., no sensors, etc.) unlike the primary cats.
Thanks for the info! I'm taking my car to the shop today to see about removing the mufflers. What did you replace your secondary cats with? If you say no codes will be thrown then i might as well delete the mufflers and secondary cats all at once! How can i tell which ones are the primary vs secondary cats? I ask because i doubt most shops around my area have worked on M5's and i don't want them messing it up. Sorry for all the questions, i just picked this car up and haven't even put it on a lift to look under it.
I put the car up on a lift. Looks like i do have the Meisterchaft section 3 catback/axleback?? I'm still a little confused because i can't seem to find a place to buy a Meisterchaft section 3. And my exhaust is too quiet. The shop didn't want to remove my cats, so i'm going to another that will do it sometime soon. Are the secondary cats the ones right after where the catback ends?
Take a look at my thread:
I appreciate all of your help with this. From looking at your thread and comparing, i don't think my car even has the Resonator on there. I'm going to try another shop that will actually remove the secondary cats for me. Ill post up pics/video once i get everything done.
Hey man, im getting my secondary cats removed tomorrow. I just remember you mentioning to NOT remove the resonator. Is there a reason you told me not to? I like it loud, so i wouldnt mind if its too loud.
Removing the resonators and secondary cats will be loud. Depending on the person you might feel some trq. Loss low end with both out.
If you still have OEM mufflers (or an aftermarket section 3), then I'd say up to you whether or not to remove the resonator.
I've seen your video multiple times. It's not fair though, you have an Eisenmann exhaust!! Haha. Love the sound!!
I have Meisterchaft section 3. I'm not doing a muffler delete since i don't want to mess with the Meisterchaft on there already. One more question and i swear i'll leave you alone haha. Removing the resonator won't throw any codes either right?
Correct; removing the resonator (and/or the secondary cats) will NOT throw any codes.
