Quote:
Originally Posted by OC335sedan
My vote is a simple muffler delete. Have one on my 2018 M240 and have done them on both my former M235i's and on past 135's too. They sound great and are not overly aggressive. Minimal drone and not nearly as loud as you'd expect (cause downpipe and cat stays stock). Super inexpensive too - my local muffler shop charges about $200 to cut off the muffler and weld straight pipe in it's place. I always put in nicer tips (1/2 inch larger than stock) which gives it a nice look.
Best advice is to start with just the muffler delete and leaver the two small resonators in place. If after that you want to add a little extra sound and pop, replacing 1 or both resonators with straight pipe will get you just a bit more.
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OC335sedan did you make any other mods to yours or just the delete? Any sound clips?