[OC335sedan]

My '07 e90 335i is 100% stock, and I'm looking for a somewhat more aggressive sound -- something on par with the BMW Performance Exhaust. I don't want to mess with any downpipes or eliminating any cats (my car barely passes smog as it is). Are there any aftermarket mufflers that are a simple weld in-place of the stock mufflers that produce a nice sound that's louder than stock but not obnoxious?

Ideally, I'd love to spend a couple hundred bucks on 2 new mufflers (Magnaflow or others), have a muffler shop weld them in, and be done. Not concerned about power gains, just sound.

I know it is a completely different car, but I did just the mufflers on my old '93 Mustang 5.0 Cobra years ago, and it sounded great and cost about $200 installed! Not sure why this same concept wouldn't work on the 335?

[A4rings]

just delete your resonator. the e92 comes with an x pipe in place of the resonator that is on the e90 and it sounds a bit more aggresive

[Brey335i]

I have an e92 with magnaflow mufflers. Sounds great now. Deleting your resonators and swapping mufflers should give you a nice sound, but I really do recommend pairing that with downpipes for the best results.

[hipnotic]

same here i got an e92 with magnaflow mufflers and the rest is stock. It gives the exhaust a deeper tone and is slightly louder compared to stock. But i want mines to be louder.

[Brey335i]

Downpipes and midpipes

[e90fun]

Originally Posted by josh06lau

same here i got an e92 with magnaflow mufflers and the rest is stock. It gives the exhaust a deeper tone and is slightly louder compared to stock. But i want mines to be louder.

what magnaflows did you buy?
the briefcase looking ones?
i have the round cylinder ones and they are loud.

[Brey335i]

Originally Posted by e90fun

what magnaflows did you buy?
the briefcase looking ones?
i have the round cylinder ones and they are loud.

Round cylinders are really loud... the briefcase ones are just a tad more than stock

[trickcruiser]

Does anyone have part numbers or a link to be best Magnaflow's to use?
I would also like to go the rout for the time being.

Thanks in advance

[Marcadelic]

delete res or magnaflow is probably your cheapest option, unless u just keep looking on the forums and find a great deal. They pop up every once and awhile

[OC335sedan]

Great info guys...thanks! The resonator delete and Magnaflow (briefcase-style) mufflers seems like the way I should go. I looked at Mr. 5's thread, and I believe Magnaflow muffler, part # 11366 (Stainless Steel, $129 each) or part # 14363 (Polished, $172 each) are the best ones for 335's. The specs on these are:
2.5 in/2.5 in Inlet/Outlet
4" x 9" Oval Body Shape
2.5in Core Size
11in Body Length

You can see pictures and specs on the Magnaflow website. Can someone please confirm that buying 2 of these mufflers are the best fit for an '07 e90 335i? Do they weld right in or does the muffler shop have to re-route any of the nearby piping?

[Brey335i]

Did this install myself. Simply cut in the right spots and weld or clamp at the right angles

[trickcruiser]

Good stuff OC335sedan!

Also in to see if someone can confirm these part numbers.

[osukf09]

any updates OP? How did it turn out? Any sound clips?